LM431ACM3 - Brand New Texas Instruments Voltage References
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Description
The LM431ACM3 is a 3-terminal adjustable shunt regulator in the voltage references product category. It has specified thermal stability over applicable automotive and commercial temperature ranges. The output voltage can be set to any value between approximately 2.5V (VREF) and 36V by using two external resistors. With a typical output impedance of 0.2Ω, this device is an excellent replacement for zener diodes in various applications including on-board regulation, adjustable power supplies, and switching power supplies. The LM431AC is characterized for operation from 0°C to +70°C, while the LM431AI is characterized for operation from -40°C to +85°C.
Specifications and features
The LM431ACM3 offers the following specifications and features:
- Equivalent full-range temperature coefficient: 30ppm/°C
- 0.2Ω typical output impedance
- Sink current capability: 1mA to 100mA
- Low output noise
- Adjustable output voltage: VREF to 36V
Application Scenarios
The LM431ACM3 can be used in various scenarios including but not limited to:
- On-board regulation
- Adjustable power supplies
- Switching power supplies
Comparison
Advantages:
- Specified thermal stability over applicable automotive and commercial temperature ranges
- Wide range of adjustable output voltage
- Low output impedance
- Sharp turn-on characteristic
- Excellent replacement for zener diodes
Disadvantage:
- May require the use of external resistors to set the output voltage
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Datasheet
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- Datasheet: Download LM431ACM3
- Chipdatas Part: CD93-LM431ACM3
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- Last Updated: 2024/06/03 09:40 +0800
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