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.
Reference voltage tolerance (Vref) |
Temperature range (Tamb) |
Pinning configuration (see Table 5.) |
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---|---|---|---|---|
0 °C to 70 °C |
-40 °C to 85 °C |
-40 °C to 125 °C |
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2.0 % |
TL431CDBZR-Q |
TL431IDBZR-Q |
TL431QDBZR-Q |
normal pinning |
TL431FDT-Q |
normal pinning |
|||
TL431MFDT-Q |
mirrored pinning |
|||
1.0 % |
TL431ACDBZR-Q |
TL431AIDBZR-Q |
TL431AQDBZR-Q |
normal pinning |
TL431AFDT-Q |
normal pinning |
|||
TL431AMFDT-Q |
mirrored pinning |
|||
0.5 % |
TL431BCDBZR-Q |
TL431BIDBZR-Q |
TL431BQDBZR-Q |
normal pinning |
TL431BFDT-Q |
normal pinning |
|||
TL431BMFDT-Q |
mirrored pinning |
Key features and benefits
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Programmable output voltage up to 36 V
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Three different reference voltage tolerances:
-
-
Standard grade: 2 %
-
A-Grade: 1 %
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B-Grade: 0.5 %
-
-
Typical temperature drift: 9 mV (in a range of 0 °C up to 70 °C)
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Low output noise
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Typical output impedance: 0.2 Ω
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Sink current capability: 1 mA to 100 mA
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Qualified according to AEC-Q100 (grade 1) and recommended for use in automotive applications
Key applications
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Shunt regulator
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Precision current limiter
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Precision constant current sink
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Isolated feedback loop for Switch Mode Power Supply (SMPS)
Products
Bipolar transistors
Type number | Description | Status | Quick access |
---|---|---|---|
TL431ACDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431AFDT-Q | Adjustable precision shunt regulators | Production | |
TL431AIDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431AMFDT-Q | Adjustable precision shunt regulators | Production | |
TL431AQDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431BCDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431BFDT-Q | Adjustable precision shunt regulators | Production | |
TL431BIDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431BMFDT-Q | Adjustable precision shunt regulators | Production | |
TL431BQDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431CDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431FDT-Q | Adjustable precision shunt regulators | Production | |
TL431IDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431MFDT-Q | Adjustable precision shunt regulators | Production | |
TL431QDBZR-Q | Adjustable precision shunt regulators | Production |
Automotive qualified products (AEC-Q100/Q101)
Type number | Description | Status | Quick access |
---|---|---|---|
TL431ACDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431AFDT-Q | Adjustable precision shunt regulators | Production | |
TL431AIDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431AMFDT-Q | Adjustable precision shunt regulators | Production | |
TL431AQDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431BCDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431BFDT-Q | Adjustable precision shunt regulators | Production | |
TL431BIDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431BMFDT-Q | Adjustable precision shunt regulators | Production | |
TL431BQDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431CDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431FDT-Q | Adjustable precision shunt regulators | Production | |
TL431IDBZR-Q | Adjustable precision shunt regulators | Production | |
TL431MFDT-Q | Adjustable precision shunt regulators | Production | |
TL431QDBZR-Q | Adjustable precision shunt regulators | Production |
Documentation
File name | Title | Type | Date |
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Datasheets (1)
File name | Title | Type | Date |
---|---|---|---|
TL431-Q_FAM | Adjustable precision shunt regulators | Data sheet | 2024-04-30 |