TL431 Datasheet, PDF (1/23 Pages) Motorola, Inc – PROGRAMMABLE PRECISION REFERENCES

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 V_ref and 36 V,
to be set by two external resistors.
Table 1. Product overview
Reference voltage Temperature range (T_amb)
tolerance (V_ref)
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