NRND = Not Recommended for New Design
ADJUSTABLE PRECISION SHUNT REGULATION
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The LA431 is a low voltage three terminal adjustable shunt regulator with a guaranteed thermal stability over applicable temperature ranges. The output voltage can be set to any value between 2.495V (VREF) to 36V with two external resistors (please refer application circuit). The high precise Reference voltage tolerance is available in two grades: ±0.4% and ±1.0%. This device has a typical minimum cathode current of 0.1 mA. Active output circuitry provides a very sharp turn on characteristic, making this device excellent replacement for Zener diodes in many applications.
| Accuracy (%) | 0.4,1 |
|---|---|
| Compliance (Only Automotive supports PPAP) | Standard |
| MaximumInput Voltage (V) | 36 |
| Maximum Input Voltage (V) | 36 |
| Maximum Slope Resistance (Ω) | 0.5 |
| Minimum Cathode Current for Regulation Typ (µA) | 300 |
| Operating Ambient Temperature Range (°C) | -40 to 125 |
| Operating Ambient Temperature Range (°C) | -40 to 125 |
| AEC Qualified | No |
| ReferenceVoltage (V) | 2.495 |
| Sink Current (mA) | 100 |
| Tolerance (%) | 0.4,1 |
| Type | Shunt regulator |
| Typical Temperature Coefficient (ppm/°C) | 61 |
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2594 | 2022-08-31 | 2023-02-28 | Device End of Life (EOL) |
