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Product Detailed Parameters
- Description：VOLTAGE REFERENCE
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The TL1431CLPM is a precision programmable shunt voltage reference manufactured by Texas Instruments. It features an adjustable output voltage range from approximately 2.5V to 36V, set via two external resistors. The device offers a typical output impedance of 0.2Ω and supports a sink current capability between 1mA and 100mA. Characterized for commercial operation within a temperature range of 0°C to 70°C, it provides fast turn-on characteristics and low reference input current.
Feature Summary
- Adjustable output voltage programmable between 2.5V and 36V using external resistors
- High sink current capability ranging from 1mA to 100mA
- Low reference input current requirement for efficient operation
- Fast turn-on characteristic suitable for Zener diode replacement
Applications
- Secondary side regulation in flyback switching power supplies
- Adjustable voltage and current referencing circuits
- Voltage monitoring systems
- Comparators with integrated reference
Procurement Notes
Verify the specific suffix 'CLPM' against the manufacturer's official orderable addendum to confirm package type and availability. Ensure the component meets the required commercial temperature range specifications for the intended application environment before procurement.
Selection Notes
Select this component when a precision shunt regulator is needed for commercial temperature environments. Consider the 0.4% initial voltage tolerance and thermal stability requirements. Verify that the cathode current limits and output impedance specifications align with the circuit design constraints.
Part Context
This part belongs to the TL1431 family of precision programmable references. The 'C' designation indicates characterization for the commercial temperature range (0°C to 70°C). The device integrates an internal voltage reference and error amplifier to function as a versatile analog building block for power management and signal conditioning.
Replacement Considerations
Consult the manufacturer's datasheet for verified alternative part numbers or cross-reference options. Ensure any substitute maintains equivalent electrical characteristics, pinout compatibility, and temperature range specifications.
