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1/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. system led drivers for mobile phones 8 leds alc* and ldo 4ch (*alc: auto luminous control) BD6084GUL description BD6084GUL is ?intelligent led dr iver? that is the most suitable for the cellular phone. it has 3 ~ 8led driver and output variable ldo4ch for lcd backlight. it has alc function that is ?low po wer consumption system? realized. it can be developed widely from the high end model to the low end model. as it has charge pump circuit for led power supply, it is no need to use coils, and it contributes to small space. vcsp50l3(3.15mm x 3.45mm 0.5mm pitch) it adopts the very thin csp package that is the most suitable for the slim phone. features 1) total 3 ~ 8leds driver for lcd backlight ? it has 4leds (it can select 4led or 3led) for exclusire use of main and 4leds which canchose independent control or a main allotment by resister setting. ? ?main group? can be controlled by auto luminous control (alc) system. ?main group? can be controlled by external pwm signal. ? on/ off and a setup of led current are possible at the ti me of the independent control by the independence. 2) ambient light sensor interface ? incorporates various functions such as a sensor bias adjustment function, an adc wi th an average filter, a gain adjustment function and an log conversion function so th at options can be increased for illumination intensity sensors (photo diode, photo transistor, photo ic (linear / log)). ? incorporates an auto gain switching function for suppres sing an illumination intensit y sensor current at high illumination intensity and improving sens itivity at low illumination intensity ? capable of customizing an led current value according to a table setting. ? slope control loading and an independent control change are possible. 3) charge pump dc/dc for led driver ? it has x1/x1.5/ x2 mode that will be selected automatically. ? the most suitable voltage up magnification is controlled automatically by led port voltage. ? soft start functions,over voltage protection (auto-return type),ov er current protection (auto-return type) loading 4) 4ch low drop out series regulator (ldo) ? it has 16 steps selectable output voltage by the register. ldo1, ldo2, ldo3, ldo4: iomax=150ma 5) thermal shutdown 6) i 2 c bus fs mode (max 400 khz) compatibility absolute ma ximum ratings (ta=25 ) parameter symbol ratings unit maximum voltage vmax 7 v power dissipation pd 1340 note) mw operating temperature range topr -30 ~ +85 storage temperature range tstg -55 ~ +150 note) power dissipation deleting is 10.72mw/ , when it?s used in over 25 . (it?s deleting is on the board that is rohm?s standard) operating conditions (vbat vio, ta=-30 ~ 85 ) parameter symbol limits unit vbat input voltage vbat 2.7 ~ 5.5 v vio pin voltage vio 1.65 ~ 3.3 v no.10041eat08
technical note 2/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL ?
technical note 3/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL ? ?
technical note 4/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL ? ?
technical note 5/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 6/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 7/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 8/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 9/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 10/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 11/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 12/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 13/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL ? ? ? ?
technical note 14/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL ? ? ? r/w=0(write) r/w=1(read) register address data data s a a a sr 1 0 a7 a6 a5 a4 a3 a2 a1 a0 xxxxxxx xxxxxxx a=acknowledge(sdalow) a=not acknowledge(sda high) s =start condition p =stop condition from master to slave from slave to master register address increment p a d7 d6 d5 d4 d3 d2 d1 d0 d7 d6 d5 d4 d3 d2 d1 d0 a sr=repeated start condition slave address slave address register address increment fig.13 as for reading protocol and multiple reading protocols, please do a(not acknowledge) after doing the final reading operation. it stops with read when ending by a(acknowledge), and sda stops in the state of low when the reading data of that time is 0. however, this state returns usually when scl is moved, data is read, and a (not acknowledge) is done.
technical note 15/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 16/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 17/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 18/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 02h < led power control> address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 02h w wpwmen alcen w8en w7en w6en w5en - mleden initial value 00h 0 0 0 0 0 0 0 0 bit7 :
technical note 19/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 03h < main group led current setting(normal mode) > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 03h w - imled(6) imled(5) imled(4) im led(3) imled(2) imled(1) imled(0) initial value 00h - 0 0 0 0 0 0 0 bit7 : (not used) bit[6:0] : imled (6:0) main group led current setting at non-alc mode ?0000000? : 0.2 ma (initial value) ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma
technical note 20/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 05h < led5 current setting(independence control) > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 05h w - iw5(6) iw5(5) iw5(4) iw5(3) iw5(2) iw5(1) iw5(0) initial value 00h - 0 0 0 0 0 0 0 bit7 : (not used) bit[6:0] : iw5 (6:0) led5 current setting ?0000000? : 0.2 ma (initial value) ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma
technical note 21/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 06h < led6 current setting(independence control) > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 06h w - iw6(6) iw6(5) iw6(4) iw6(3) iw6(2) iw6(1) iw6(0) initial value 00h - 0 0 0 0 0 0 0 bit7 : (not used) bit[6:0] : iw6 (6:0) led6 current setting ?0000000? : 0.2 ma (initial value) ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma
technical note 22/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 07h < led7 current setting(independence control) > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 07h w - iw7(6) iw7(5) iw7(4) iw7(3) iw7(2) iw7(1) iw7(0) initial value 00h - 0 0 0 0 0 0 0 bit7 : (not used) bit[6:0] : iw7 (6:0) led7 current setting ?0000000? : 0.2 ma (initial value) ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma
technical note 23/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 08h < led8 current setting(independence control) > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 08h w - iw8(6) iw8(5) iw8(4) iw8(3) iw8(2) iw8(1) iw8(0) initial value 00h - 0 0 0 0 0 0 0 bit7 : (not used) bit[6:0] : iw8 (6:0) led8 current setting ?0000000? : 0.2 ma (initial value) ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma
technical note 24/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 09h < main current slope time setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 09h w thl(3) thl(2) thl(1) thl(0) tlh(3) tlh(2) tlh(1) tlh(0) initial value c7h 1 1 0 0 0 1 1 1 bit[7:4] : thl (3:0) main led current down transition per 0.2ma step ?0000? : 0.256 ms ?0001? : 0.512 ms ?0010? : 1.024 ms ?0011? : 2.048 ms ?0100? : 4.096 ms ?0101? : 8.192 ms ?0110? : 16.38 ms ?0111? : 32.77 ms ?1000? : 65.54 ms ?1001? : 131.1 ms ?1010? : 196.6 ms ?1011? : 262.1 ms ?1100? : 327.7 ms (initial value) ?1101? : 393.2 ms ?1110? : 458.8 ms ?1111? : 524.3 ms setting time is counted based on the switching frequency of charge pump. the above value becomes the value of the typ (1mhz) time. refer to ?(8) slope process? of ?alc? for detail. bit[3:0] : tlh (3:0) main led current up transition per 0.2ma step ?0000? : 0.256 ms ?0001? : 0.512 ms ?0010? : 1.024 ms ?0011? : 2.048 ms ?0100? : 4.096 ms ?0101? : 8.192 ms ?0110? : 16.38 ms ?0111? : 32.77 ms (initial value) ?1000? : 65.54 ms ?1001? : 131.1 ms ?1010? : 196.6 ms ?1011? : 262.1 ms ?1100? : 327.7 ms ?1101? : 393.2 ms ?1110? : 458.8 ms ?1111? : 524.3 ms setting time is counted based on the switching frequency of charge pump. the above value becomes the value of the typ (1mhz) time. refer to ?(8) slope process? of ?alc? for detail.
technical note 25/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 0ah < alc mode setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0ah w - adcyc - gain stype - mdcir sbiason initial value 01h - 0 - 0 0 - 0 1 bit7 : (not used) bit6 : adcyc adc measurement cycle ?0? : 0.52 s (initial value) ?1? : 1.05 s refer to ?(4) a/d conversion? of ?alc? for detail. bit5 : (not used) bit4 : gain sensor gain switching function control ?0? : auto change (initial value) ?1? : fixed refer to ?(3) gain contro l? of ?alc? for detail. bit3 : stype sensor type selection (linear output/ log output) ?0? : linear output type (initial value) ?1? : log output type refer to ?(6) ambient level detection? for detail. bit2 : (not used) bit1 : mdcir led current reset select by mode change ?0? : led current non-reset when mode change (initial value) ?1? : led current reset when mode change refer to ?(9) led current reset when mode change? of ?alc? for detail. bit0 : sbiason ?0? : measurement cycle synchronous ?1? : usually on (at alcen=1) (initial value) refer to ?(4) a/d conversion? of ?alc? for detail.
technical note 26/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 0bh < alc slope curve setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0bh w - - - - crv step (2) step (1) step (0) initial value 00h - - - - 0 0 0 1 bit[7:4] : (not used) bit3 : crv brightness current conversion curve type ?0? log curve (initial value) ?1? linear bit[2:0] : step (2:0) step at the time of brightness current conversion ?000? : 1.0ma ?001? : 1.1ma (initial value) ?010? : 1.2ma ?011? : 1.3ma ?100? : 1.6ma ?101? : 1.7ma ?110? : 1.8ma ?111? : 1.9ma refer to ?(7) convert led current? of ?alc? for detail. address 0ch < ambient level (read only) > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0ch r - - - - amb(3) amb(2) amb(1) amb(0) initial value (00h) - - - - (0) (0) (0) (0) bit[7:4] : (not used) bit[3:0] : amb (3:0) ambient level ?0000? : 0h (initial value) ?0001? : 1h ?0010? : 2h ?0011? : 3h ?0100? : 4h ?0101? : 5h ?0110? : 6h ?0111? : 7h ?1000? : 8h ?1001? : 9h ?1010? : ah ?1011? : bh ?1100? : ch ?1101? : dh ?1110? : eh ?1111? : fh it begins to read ambient data through i 2 c, and possible. to the first ad measurement completion, it is amb(3:0)=0000. refer to ?(6) ambien t level detection? of ?alc? for detail.
technical note 27/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 0dh < ambient led current setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0dh w - iu0 (6) iu0 (5) iu0 (4) iu0 (3) iu0 (2) iu0 (1) iu0 (0) initial value 13 - 0 0 1 0 0 1 1 bit7 : (not used) bit[6:0] : iu0(6:0) main current at ambient level for 0h ?0000000? : 0.2 ma ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma (initial value) ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma
technical note 28/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 0eh < led max current setting > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 0eh w - iu1 (6) iu1 (5) iu1 (4) iu1 (3) iu1 (2) iu1 (1) iu1 (0) initial value 63h - 1 1 0 0 0 1 1 bit7 : (not used) bit[6:0] : iu1 (6:0) led max current (for alc) ?0000000? : 0.2 ma ?1000000? : 13.0 ma ?0000001? : 0.4 ma ?1000001? : 13.2 ma ?0000010? : 0.6 ma ?1000010? : 13.4 ma ?0000011? : 0.8 ma ?1000011? : 13.6 ma ?0000100? : 1.0 ma ?1000100? : 13.8 ma ?0000101? : 1.2 ma ?1000101? : 14.0 ma ?0000110? : 1.4 ma ?1000110? : 14.2 ma ?0000111? : 1.6 ma ?1000111? : 14.4 ma ?0001000? : 1.8 ma ?1001000? : 14.6 ma ?0001001? : 2.0 ma ?1001001? : 14.8 ma ?0001010? : 2.2 ma ?1001010? : 15.0 ma ?0001011? : 2.4 ma ?1001011? : 15.2 ma ?0001100? : 2.6 ma ?1001100? : 15.4 ma ?0001101? : 2.8 ma ?1001101? : 15.6 ma ?0001110? : 3.0 ma ?1001110? : 15.8 ma ?0001111? : 3.2 ma ?1001111? : 16.0 ma ?0010000? : 3.4 ma ?1010000? : 16.2 ma ?0010001? : 3.6 ma ?1010001? : 16.4 ma ?0010010? : 3.8 ma ?1010010? : 16.6 ma ?0010011? : 4.0 ma ?1010011? : 16.8 ma ?0010100? : 4.2 ma ?1010100? : 17.0 ma ?0010101? : 4.4 ma ?1010101? : 17.2 ma ?0010110? : 4.6 ma ?1010110? : 17.4 ma ?0010111? : 4.8 ma ?1010111? : 17.6 ma ?0011000? : 5.0 ma ?1011000? : 17.8 ma ?0011001? : 5.2 ma ?1011001? : 18.0 ma ?0011010? : 5.4 ma ?1011010? : 18.2 ma ?0011011? : 5.6 ma ?1011011? : 18.4 ma ?0011100? : 5.8 ma ?1011100? : 18.6 ma ?0011101? : 6.0 ma ?1011101? : 18.8 ma ?0011110? : 6.2 ma ?1011110? : 19.0 ma ?0011111? : 6.4 ma ?1011111? : 19.2 ma ?0100000? : 6.6 ma ?1100000? : 19.4 ma ?0100001? : 6.8 ma ?1100001? : 19.6 ma ?0100010? : 7.0 ma ?1100010? : 19.8 ma ?0100011? : 7.2 ma ?1100011? : 20.0 ma (initial value) ?0100100? : 7.4 ma ?1100100? : 20.2 ma ?0100101? : 7.6 ma ?1100101? : 20.4 ma ?0100110? : 7.8 ma ?1100110? : 20.6 ma ?0100111? : 8.0 ma ?1100111? : 20.8 ma ?0101000? : 8.2 ma ?1101000? : 21.0 ma ?0101001? : 8.4 ma ?1101001? : 21.2 ma ?0101010? : 8.6 ma ?1101010? : 21.4 ma ?0101011? : 8.8 ma ?1101011? : 21.6 ma ?0101100? : 9.0 ma ?1101100? : 21.8 ma ?0101101? : 9.2 ma ?1101101? : 22.0 ma ?0101110? : 9.4 ma ?1101110? : 22.2 ma ?0101111? : 9.6 ma ?1101111? : 22.4 ma ?0110000? : 9.8 ma ?1110000? : 22.6 ma ?0110001? : 10.0 ma ?1110001? : 22.8 ma ?0110010? : 10.2 ma ?1110010? : 23.0 ma ?0110011? : 10.4 ma ?1110011? : 23.2 ma ?0110100? : 10.6 ma ?1110100? : 23.4 ma ?0110101? : 10.8 ma ?1110101? : 23.6 ma ?0110110? : 11.0 ma ?1110110? : 23.8 ma ?0110111? : 11.2 ma ?1110111? : 24.0 ma ?0111000? : 11.4 ma ?1111000? : 24.2 ma ?0111001? : 11.6 ma ?1111001? : 24.4 ma ?0111010? : 11.8 ma ?1111010? : 24.6 ma ?0111011? : 12.0 ma ?1111011? : 24.8 ma ?0111100? : 12.2 ma ?1111100? : 25.0 ma ?0111101? : 12.4 ma ?1111101? : 25.2 ma ?0111110? : 12.6 ma ?1111110? : 25.4 ma ?0111111? : 12.8 ma ?1111111? : 25.6 ma
technical note 29/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 13h address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 13h w/r - - - - ldo4en ldo3en ldo2en ldo1en initial value 00h - - - - 0 0 0 0 bit[7:4] : (not used) bit3 : ldo4en ldo4 control (on/off) ?0? : ldo4 off (initial value) ?1? : ldo4 on bit2 : ldo3en ldo3 control (on/off) ?0? : ldo3 off (initial value) ?1? : ldo3 on bit1 : ldo2en ldo2 control (on/off) ?0? : ldo2 off (initial value) ?1? : ldo2 on bit0 : ldo1en ldo1 control (on/off) ?0? : ldo1 off (initial value) ?1? : ldo1 on address 14h < ldo1 vout control, ldo2 vout control > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 14h r/w ldo2vsel3 ldo2vsel2 ldo2vsel1 ldo2 vsel0 ldo1vsel3 ldo1vsel2 ldo1vsel1 ldo1vsel0 initial value 74h 0 1 1 1 0 1 0 0 bit[7:4] : ldo2vsel [3:0] ?0000? : 1.20 v ?0001? : 1.30 v ?0010? : 1.50 v ?0011? : 1.60 v ?0100? : 1.80 v ?0101? : 2.20 v ?0110? : 2.40 v ?0111? : 2.50 v (initial value) ?1000? : 2.60 v ?1001? : 2.70 v ?1010? : 2.80 v ?1011? : 2.90 v ?1100? : 3.00 v ?1101? : 3.10 v ?1110? : 3.20 v ?1111? : 3.30 v bit[3:0] : ldo1vsel [3:0] ?0000? : 1.20 v ?0001? : 1.30 v ?0010? : 1.50 v ?0011? : 1.60 v ?0100? : 1.80 v (initial value) ?0101? : 2.20 v ?0110? : 2.40 v ?0111? : 2.50 v ?1000? : 2.60 v ?1001? : 2.70 v ?1010? : 2.80 v ?1011? : 2.90 v ?1100? : 3.00 v ?1101? : 3.10 v ?1110? : 3.20 v ?1111? : 3.30 v
technical note 30/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL address 15h < ldo3 vout control, ldo4 vout control > address r/w bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 15h r/w ldo4vsel3 ldo4vsel2 ldo4vsel1 ldo4 vsel0 ldo3vsel3 ldo3vsel2 ldo3vsel1 ldo3vsel0 initial value a4h 1 0 1 0 0 1 0 0 bit[7:4] : ldo4vsel [3:0] ?0000? : 1.20 v ?0001? : 1.30 v ?0010? : 1.50 v ?0011? : 1.60 v ?0100? : 1.80 v ?0101? : 2.20 v ?0110? : 2.40 v ?0111? : 2.50 v ?1000? : 2.60 v ?1001? : 2.70 v ?1010? : 2.80 v (initial value) ?1011? : 2.90 v ?1100? : 3.00 v ?1101? : 3.10 v ?1110? : 3.20 v ?1111? : 3.30 v bit[3:0] : ldo3vsel [3:0] ?0000? : 1.20 v ?0001? : 1.30 v ?0010? : 1.50 v ?0011? : 1.60 v ?0100? : 1.80 v (initial value) ?0101? : 2.20 v ?0110? : 2.40 v ?0111? : 2.50 v ?1000? : 2.60 v ?1001? : 2.70 v ?1010? : 2.80 v ?1011? : 2.90 v ?1100? : 3.00 v ?1101? : 3.10 v ?1110? : 3.20 v ?1111? : 3.30 v
technical note 31/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL ? ? ? ? ? ? ?
technical note 32/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 33/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL mode transition the transition of boosts multiple transits automatically by vbat voltage and the vout pin voltage. fig.18 the mode transition of the charge pump works as follows. ? ?
technical note 34/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 35/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL led composition which can be set up is the following. the main, other1 and other2 are controllable to each. (enable and current setting) main (alc,pwm) other1 other2 other3 other4 8leds - - - - 7leds - - - - 7leds 1led - - - 6leds - - - - 6leds 1 led - - - 6leds 2 leds - - - 6leds 1 led 1led - - 5leds - - - - 5leds 1 led - - - 5leds 2 leds - - - 5leds 1 led 1led - - 5leds 3 leds - - - 5leds 2 leds 1led - - 5leds 1 led 1led 1led - 4leds - - - - 4leds 1 led - - - 4leds 2 leds - - - 4leds 1 led 1led - - 4leds 3 leds - - - 4leds 2 leds 1led - - 4leds 1 led 1led 1led - 4leds 4leds - - - 4leds 3 leds 1led - - 4leds 2 leds 1led 1led - 4leds 1 led 1led 1led 1led 3leds - - - - 3leds 1 led - - - 3leds 2 leds - - - 3leds 1 led 1led - - 3leds 3 leds - - - 3leds 2 leds 1led - - 3leds 1 led 1led 1led - 3leds 4leds - - - 3leds 3 leds 1led - - 3leds 2 leds 1led 1led - 3leds 1 led 1led 1led 1led
technical note 36/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL ? ? ? ? ? ? ?
technical note 37/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL (2) i/v conversion ?
technical note 38/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL (3)gain control ? ? ? ?
technical note 39/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL (4) a/d conversion ? ? ? ? ? ? ?
technical note 40/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL (6) ambient level detection ? ? ? ? : this means that this zone is not outputted in this mode.
technical note 41/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL (7) convert led current ? ? R crv=0 0 5 10 15 20 25 30 03691215 amb led current(ma) slp=1ma slp=1.1ma slp=1.2ma slp=1.3ma slp=1.6ma slp=1.7ma slp=1.8ma slp=1.9ma crv=1 0 5 10 15 20 25 30 03691215 amb led current(ma) slp=1ma slp=1.1ma slp=1.2ma slp=1.3ma slp=1.6ma slp=1.7ma slp=1.8ma slp=1.9ma
technical note 42/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL (8) slope process ? ? ? ? ? ?
technical note 43/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL (10) current adjustment ? ?
technical note 44/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 45/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 46/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL 2. backlight: fade-in/fade-out fig.31 3. backlight without auto luminous mode fig.32 fig.33 the rise time depends on tlh(3:0) settin g
technical note 47/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 48/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL
technical note 49/49 www.rohm.com 2010.07 - rev. a ? 2010 rohm co., ltd. all rights reserved. BD6084GUL (unit : mm) vcsp50l3 (BD6084GUL) s 0.06 s a b ba 0.05 12345 6 a b c d f e ( 0.15)index post 0.55max 0.1 0.05 0.475 0.05 1pin mark 3.45 0.05 3.15 0.05 0.325 0.05 p=0.5 5 p=0.5 5 35- 0.25 0.05 ? order quantity needs to be multiple of the minimum quantity. embossed carrier tape (heat sealing method) tape quantity direction of feed the direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 2500pcs e2 () direction of feed reel 1pin
r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specified herein is subject to change for improvement without notice. the content specified herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specifications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specified in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specified herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specified in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, fire control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specified herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.

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