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THIS DOCUMENT IS FOR MAINTENANCE PURPOSES ONLY AND IS NOT RECOMMENDED FOR NEW DESIGNS
JUNE 1993
DS2427 - 1.0
REF50Z/REF50D
5V MICROPOWER PRECISION REFERENCE
The REF50Z and REF50D are integrated circuits using the bandgap principle to provide a precise stable reference voltage of 5V. There are two package options available: REF50Z in a plastic 3-pin TO-92 and REF50D in a miniature surface mount package (MP8). These references feature a recommended operating current of 60A to 5mA which make them ideal for all low power and battery applications.
FEATURES
s s s s s s s s s Low Knee Current - typically 40 microamps Ideal for Battery Operation - 300 microwatts Internally Shaped REF50Z - 3 lead TO-92 Plastic Package REF50D - Miniature Plastic Surface Mount Package (MP8) Tight Initial VREF Tolerance 1.5% Low Temperature Coefficient Low Slope Resistance Operation over Industrial Temperature Range
Fig.1 Pin connection
ORDERING INFORMATION
Device Type REF50Z REF50D Operating Temperature -40C to +85C -40C to +85C Package TO-92 MP8
ABSOLUTE MAXIMUM RATINGS
Reference current 5mA Operating temperature range: REF50Z -40 to +85C REF50D -40 to +85C Storage temperature -55 to +125C Storage temperature for a max. time of 10ns: within 1.59mm of seating plane 300C within 0.80mm of seating plane 265C
Fig.2 Internal connections
REF50Z/50D
ELECTRICAL CHARACTERISTICS
Test conditions (unless otherwise stated) Tamb = 25C, IREF = 150A Value Characteristics Symbol Min. Typ. Max. Units Conditions
Output voltage Slope resistance (Note 1)
VREF RREF
4.925
5.00 3.0 3.0
5.075 3.5 3.5
V A REF 50Z REF50D IREF = 150A to 5mA
Turn-on (knee) current Recommended operating current range Temperature coefficient (Note 2)
ION IREF 0.06
40 5.0
A
TC VREF
35 35
110 80
ppm/C ppm/C V s s s s
REF25Z Note 2 REF25D 1kHz tp 10kHz
RMS noise voltage Turn-on time Turn-off time Turn-on time Turn-off time NOTES 1. Slope resistance (RREF) Slope resistance is defined as
EN TON TOFF TON TOFF
13 80 7 65 2
IREF = 500A
RREF = Change in VREF over a specified current range The change in reference current 2. Reference voltage temperature coefficient (TC VREF) This is the normalised reference voltage change over temperature, divided by the change in temperature. It is expressed in ppm/C TC VREF = VREF X 106 VREF X T T = temperature change in C VREF = change in reference voltage over temperature change T ppm/C
2
REF50Z/50D
Fig.3 Connections diagram
3
REF50Z/50D
Fig.4 Typical reference characterics
Fig.5 Typical temperature at IREF = 150A
4
REF50Z/50D
Fig.6 Typical dynamic impedance at IREF = 5mA
5
REF50Z/50D
Fig.7 Typical response time (not to scale)
Fig.7 Typical response time (not to scale)
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REF50Z/50D
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REF50Z/50D
8-LEAD MINIATURE PLASTIC DIL - MP8
3-LEAD PLASTIC-TO-92
HEADQUARTERS OPERATIONS GEC PLESSEY SEMICONDUCTORS Cheney Manor, Swindon, Wiltshire SN2 2QW, United Kingdom. Tel: (0793) 518000 Fax: (0793) 518411 GEC PLESSEY SEMICONDUCTORS Sequoia Research Park, 1500 Green Hills Road, Scotts Valley, California 95066, United States of America. Tel: (408) 438 2900 Fax: (408) 438 5576
CUSTOMER SERVICE CENTRES * FRANCE & BENELUX Les Ulis Cedex Tel: (1) 64 46 23 45 Tx: 602858F Fax : (1) 64 46 06 07 * GERMANY Munich Tel: (089) 3609 06-0 Tx: 523980 Fax : (089) 3609 06-55 * ITALY Milan Tel: (02) 66040867 Fax: (02) 66040993 * JAPAN Tokyo Tel: (03) 3296-0281 Fax: (03) 3296-0228 * NORTH AMERICA Integrated Circuits and Microwave Products Scotts Valley, USA Tel (408) 438 2900 Fax: (408) 438 7023. Hybrid Products, Farmingdale, USA Tel (516) 293 8686 Fax: (516) 293 0061. * SOUTH EAST ASIA Singapore Tel: (65) 3827708 Fax: (65) 3828872 * SWEDEN Stockholm, Tel: 46 8 702 97 70 Fax: 46 8 640 47 36 * UNITED KINGDOM & SCANDINAVIA Swindon Tel: (0793) 518510 Tx: 444410 Fax : (0793) 518582 These are supported by Agents and Distributors in major countries world-wide. (c) GEC Plessey Semiconductors 1993 Publication No. DS2427 Issue No. 1.0 June 1993
This publication is issued to provide information only which (unless agreed by the Company in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. The Company reserves the right to alter without prior knowledge the specification, design or price of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to the Company's conditions of sale, which are available on request.
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