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TL431MSDT

Adjustable precision shunt regulator

Philips Electronics 

TL431 family

Adjustable precision shunt regulator

Rev. 02 — 20 January 2010

Product data sheet

1. General description

Three-terminal shunt regulator family with an output voltage range between Vref and 36 V,

to be set by two external resistors.

Table 1. Product overview

Reference voltage Temperature range (Tamb)

tolerance (Vref)

0 to 70 °C

−40 to 85 °C

2%

TL431CDBZR TL431IDBZR

1%

TL431ACDBZR TL431AIDBZR

0.5 %

TL431BCDBZR TL431BIDBZR

−40 to 125 °C

Pinning

configuration

(see Table 5)

TL431QDBZR normal pinning

TL431SDT

normal pinning

TL431MSDT mirrored pinning

TL431AQDBZR normal pinning

TL431ASDT normal pinning

TL431AMSDT mirrored pinning

TL431BQDBZR normal pinning

TL431BSDT normal pinning

TL431BMSDT mirrored pinning

2. Features

„ Programmable output voltage up to 36 V

„ Three different reference voltage tolerances:

‹ Standard grade: 2 %

‹ A-Grade: 1 %

‹ B-Grade: 0.5 %

„ Typical temperature drift: 6 mV (in a range of 0 °C up to 70 °C)

„ Low output noise

„ Typical output impedance: 0.2 Ω

„ Sink current capability: 1 mA to 100 mA

„ AEC-Q100 qualified (grade 1)

3. Applications

„ Shunt regulator

„ Precision current limiter

„ Precision constant current sink

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