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
Temperature range (T
amb
)
0 to 70
°C
TL431CDBZR
−40
to 85
°C
TL431IDBZR
−40
to 125
°C
TL431QDBZR
TL431SDT
TL431MSDT
1%
TL431ACDBZR TL431AIDBZR
TL431ASDT
TL431AMSDT
0.5 %
TL431BCDBZR TL431BIDBZR
TL431BSDT
TL431BMSDT
Pinning
configuration
(see
normal pinning
normal pinning
mirrored pinning
normal pinning
mirrored pinning
normal pinning
mirrored pinning
Reference voltage
tolerance (V
ref
)
2%
TL431AQDBZR normal pinning
TL431BQDBZR normal 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
PHILIPS [ NXP SEMICONDUCTORS ]
