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.) |
||
|---|---|---|---|---|
|
0 °C to 70 °C |
-40 °C to 85 °C |
-40 °C to 125 °C |
||
|
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
-
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
-
Qualified according to AEC-Q100 (grade 1) and recommended for use in automotive applications
Key applications
-
Shunt regulator
-
Precision current limiter
-
Precision constant current sink
-
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 | 2023-05-12 |