Three-terminal shunt regulator family with an output voltage range between Vref = 2.495 V and 36 V, to be set by two external resistors.
Table 1.Product overview
Reference voltage
tolerance (Vref)
-
Temperature range (Tamb)
-
Pinning configuration
(see Table 5.)
0 °C to 70 °C
-
-40 °C to 85 °C
-
-40 °C to 125 °C
2.0 %
TL431CDBZR
TL431IDBZR
TL431QDBZR
normal pinning
TL431FDT
normal pinning
TL431MFDT
mirrored pinning
1.0 %
TL431ACDBZR
TL431AIDBZR
TL431AQDBZR
normal pinning
TL431AFDT
normal pinning
TL431AMFDT
mirrored pinning
0.5 %
TL431BCDBZR
TL431BIDBZR
TL431BQDBZR
normal pinning
TL431BFDT
normal pinning
TL431BMFDT
mirrored pinning
Features and benefits
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: 9 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
Applications
Shunt regulator
Precision current limiter
Precision constant current sink
Isolated feedback loop for Switch Mode Power Supply (SMPS)
Three-terminal shunt regulator family with an output voltage range between Vref = 2.495 V and 36 V, to be set by two external resistors.
Table 1.Product overview
Reference voltage
tolerance (Vref)
-
Temperature range (Tamb)
-
Pinning configuration
(see Table 5.)
0 °C to 70 °C
-
-40 °C to 85 °C
-
-40 °C to 125 °C
2.0 %
TL431CDBZR
TL431IDBZR
TL431QDBZR
normal pinning
TL431FDT
normal pinning
TL431MFDT
mirrored pinning
1.0 %
TL431ACDBZR
TL431AIDBZR
TL431AQDBZR
normal pinning
TL431AFDT
normal pinning
TL431AMFDT
mirrored pinning
0.5 %
TL431BCDBZR
TL431BIDBZR
TL431BQDBZR
normal pinning
TL431BFDT
normal pinning
TL431BMFDT
mirrored pinning
Features and benefits
- 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: 9 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
Applications
- Shunt regulator
- Precision current limiter
- Precision constant current sink
- Isolated feedback loop for Switch Mode Power Supply (SMPS)