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| IC for Other Information Equipment AN8001FHK Gradation voltage generation IC for liquid crystal display Unit : mm s Overview The AN8001FHK is a gradation voltage generation IC for liquid crystal displays and designed for 64-gradation LCDs. It is incorporating an 1.23 V reference voltage circuit, 10 gradation output buffer amplifier circuits, and a COM amplifier circuit. 36 9.00.2 7.00.1 25 24 37 (0.75) 48 13 (0.75) 1 0.50 12 0.200.05 s Features * Incorporating a high precision reference voltage source : 1.23 V (typ.) * Wide dynamic range of buffer amplifiers and it is possible to provide an output from VCC - 0.2 V (the highest stage) to GND + 0.2 V (the lowest stage). * Large COM-amplifier drive current : 100 mA (max.) 7.00.1 9.00.2 0.10 M (1.00) 0.10-0.05 +0.10 1.20 max. 0.150.05 (1.0) 0 to 8 0.50.1 TQFP048-P-0707B s Applications * Gradation power supply source for LCDs 1 AN8001FHK s Block Diagram IC for Other Information Equipment 29 GND2 28 VA4 26 VA3 N.C. 37 VB1 38 VB0 39 L4 R0 25 VA2 24 N.C. 23 VA1 22 VA0 21 N.C. REF 36 VB2 35 VB3 33 VB4 34 N.C. 32 N.C. 31 N.C. 30 N.C. N.C. 40 GND1 41 COM1 42 L2 R2 L3 R1 27 N.C. 20 VREF 19 VR VREF 18 VCC1 17 VR0 16 N.C. COM0 43 COM COMS 44 N.C. 45 L0 L1 R3 R4 N.C. 46 VL0 47 N.C. 48 15 VR1 14 VR2 13 N.C. 1 2 3 4 5 6 7 8 9 N.C. 10 VR4 11 Top View 2 VCC2 VR3 12 VL1 VL2 N.C. VL3 VL4 N.C. N.C. N.C. IC for Other Information Equipment s Absolute Maximum Ratings Parameter Supply voltage Supply current REF amplifier output source current R0 amplifier output source current R0 amplifier output sink current R1 amplifier output source current R1 amplifier output sink current R/2/3/4, L2/3/4 amplifier output source current R/2/3/4, L2/3/4 amplifier output sink current L1 amplifier output source current L1 amplifier output sink current L0 amplifier output source current L0 amplifier output sink current COM amplifier output source current COM amplifier output sink current Power dissipation Operating ambient temperature*1 Storage temperature*1 Symbol VCC ICC IOsource IO-R0 IO+R0 IO-R1 IO+R1 IO-R2-L2 IO+R2-L2 IO-L1 IO+L1 IO-L0 IO+L0 IO-COM IO+COM PD Topr Tstg COREF COR/L COCOM Rating 14.2 -5 -15 0.1 -15 0.1 -15 15 - 0.05 15 - 0.05 15 -100 100 400*2 220*3 0 to + 70 -55 to + 150 0.47 0.1 10 AN8001FHK Unit V mA mA mA mA mA mA mA mA mA mA mA mA mA mA mW C C mF F F REF amplifier maximum load capacitance R0/1/2/3/4, L4/3/2/1/0 amplifier maximum load capacitance COM amplifier maximum load capacitance Note) Either current or voltage should not be applied from the outside to any terminals not specified. For the circuit current, (+) is current flowing into the IC and (-) is current flowing out of the IC. Set the input voltage of each amplifier within the range of the output voltage. *1 : All items are at Ta = 25C, except for the operating ambient temperature and storage temperature parameters. *2 : Ta = 25C *3 : Ta = 70C s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 7 to 14 Unit V 3 AN8001FHK s Electrical Characteristics at Ta = 25C Parameter All device Circuit current Reference voltage Input bias current REF amplifier block Operating upper limit voltage 1 VH1 ICC VREF IB Symbol IC for Other Information Equipment Conditions Min 1.19 Typ Max Unit 3.5 1.23 6 1.27 500 mA V nA Discharge current : 2 mA Connect 0.1 F or more for oscillation prevention Discharge current : 3 mA Connect 0.1 F or more for oscillation prevention Connect 0.1 F or more for oscillation prevention VCC - 0.2 V VCC - 0.3 V V Operating upper limit voltage 2 VH2 V Operating lower limit voltage R0 amplifier block Output upper limit voltage 1 Output upper limit voltage 2 Output lower limit voltage Offset voltage R1 amplifier block Output upper limit voltage Output lower limit voltage Offset voltage R2/R3/R4/L2/L3/L4 amplifier block Output upper limit voltage 1 Output lower limit voltage 1 Output upper limit voltage 2 Output lower limit voltage 2 Offset voltage L1 amplifier block Output upper limit voltage Output lower limit voltage Offset voltage VL VREF V VH,R01 VH,R02 VL,R0 VOFFR0 VH,R1 VL,R1 VOFFR1 Discharge current : 10 mA Discharge current : 15 mA Sink current : 0.1 mA VCC - 0.2 V VCC - 0.25V VCC -3 V 10 VCC/2 10 2 1.5 10 0.7 15 V V V mV Discharge current : 15 mA Sink current : 0.1 mA VCC - 0.7 V V V mV VH,R2-R4 Discharge current : 15 mA VL,R2-R4 Sink current : 15 mA VH,L2-L4 Discharge current : 15 mA VL,L2-L4 Sink current : 15 mA VOFF234 Discharge current : 50 A Sink current : 15 mA VCC -1.5 V VCC -2 V V V V V mV VH, L1 VL, L1 VOFFL1 VCC/2 V V mV 4 IC for Other Information Equipment s Electrical Characteristics at Ta = 25C Parameter L0 amplifier block Output upper limit voltage Output lower limit voltage Offset voltage COM amplifier block Output upper limit voltage Output lower limit voltage Offset voltage VH, COM Discharge current : 100 mA VL, COM Sink current : 100 mA VOFFCOM VCC -2.5 V VH, L0 VL, L0 VOFFL0 Discharge current : 50 A Sink current : 15 mA 3 Symbol Conditions Min AN8001FHK Typ Max 0.2 15 2.5 10 Unit V V mV V V mV * Design reference data Note) The following characteristics are the reference values for design and not guaranteed values. Parameter Recovery time REF amplifier block Supply voltage rejection ratio R0 amplifier block Supply voltage rejection ratio R1 amplifier block Supply voltage rejection ratio R2/R3R/4 amplifier block Supply voltage rejection ratio R2/R3R/4 amplifier block Supply voltage rejection ratio L1 amplifier block Supply voltage rejection ratio L0 amplifier block Supply voltage rejection ratio COM amplifier block Supply voltage rejection ratio Symbol Ri-Time COM Conditions Min Typ Max 2 -40 -10 -20 -40 -40 -10 -20 -40 Unit S dB dB dB dB dB dB dB dB PSRRREF f = 10 kHz to 500 kHz 200 mV[p-p], 0.1 Fconnection PSRRR0 f = 10 kHz to 500 kHz 200 mV[p-p], 0.01 Fconnection PSRRR1 f = 10 kHz to 500 kHz 200 mV[p-p], 0.01 F connection PSRRR234 f = 10 kHz to 500 kHz 200 mV[p-p], 0.01 F connection PSRRL234 f = 10 kHz to 500 kHz 200 mV[p-p], 0.01 F connection PSRRL1 f = 10 kHz to 500 kHz 200 mV[p-p], 0.01 F connection PSRRL0 f = 10 kHz to 500 kHz 200 mV[p-p], 0.01 F connection PSRRCOM f = 10 kHz to 500 kHz 200 mV[p-p], 0.1 F connection 5 AN8001FHK s Technical Data * Characteristics curve Power supply current temperature characteristics (ICC Ta) 5 IC for Other Information Equipment Reference voltage temperature characteristics (VREF Ta) 1.26 1.25 Power supply current (mA) Reference voltage (V) 4 1.24 1.23 1.22 1.21 1.20 1.19 3 2 1 -25 0 25 50 75 100 1.18 -25 0 25 50 75 100 Ambient temperature (C) Ambient temperature (C) s Application Example * System configuration example COM amplifier 10 source driver VR0 VR1 VR2 AN8001FHK VL2 VL1 VL0 Liquid crystal panel Display data H, V, CLK Data Display controller Control signal Control signal 6 Gate driver IC for Other Information Equipment s Application Example (continued) * Application circuit example 18 V CC1 1.23V 19 VR 20 VREF 41 GND1 VR0 OPA0 VR1 OPA1 VR2 OPA2 26 VA3 OPA3 28 VA4 OPA4 33 VB4 OPB4 VL3 OPB3 36 VB2 OPB2 38 VB1 OPB1 39 VB0 OPB0 COMS 44 42 COMI COMO 43 VL0 47 VL1 1 VL2 2 4 VL4 5 VR4 11 VR3 12 14 15 17 AN8001FHK VREF 22 VA0 9V CC2 805 by 8 divisions 23 VA1 275 by 24 divisions 25 VA2 160 by 24 divisions 345 by 7 divisions 345 by 7 divisions 35 VB3 160 by 24 divisions 275 by 24 divisions 805 by 8 divisions 29 GND2 OPCOM 7 AN8001FHK s Application Example (continued) Parameter Supply voltage Load capacitance Symbol VCC CLOAD IC for Other Information Equipment Ratings 10.5 0.01 0.1 to 1 0.1 Unit V F F F Notes VR0 to VL0 COM0 VREF 8 |
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