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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% TO92-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The TL431BILPR is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495V to 36V and provides an initial accuracy of ±0.5%. The device supports a maximum output current of 100mA and features a cathode current of 700µA. It is housed in a TO-92-3 through-hole package with dimensions of 4.83mm length and 3.68mm height. The component functions effectively across a temperature range of -40°C to 85°C.
Feature Summary
- Provides high-precision voltage regulation with ±0.5% initial accuracy for stable reference applications.
- Features an adjustable output capability spanning from 2.495V up to 36V using external resistors.
- Supports a maximum sink current of 100mA suitable for driving various load requirements.
Applications
- Precision voltage references in power supply circuits
- Programmable linear regulators
- Voltage monitoring systems
Procurement Notes
Verify the specific suffix 'B' indicates the ±0.5% accuracy grade when sourcing replacements. Confirm the 'LP' designation corresponds to the TO-92-3 through-hole package style required for your board layout. Ensure the operating environment stays within the specified -40°C to 85°C thermal limits to maintain rated performance. Cross-reference datasheet electrical characteristics against your design constraints before finalizing procurement.
Selection Notes
Select this component when high accuracy is critical compared to standard ±1% or ±2% variants. The TO-92 package facilitates manual assembly or prototyping on breadboards. Consider the 100mA current limit when designing for heavier loads, as higher current may require parallel configurations or different regulator types. Verify thermal dissipation capabilities if operating near maximum current ratings.
Part Context
This part belongs to the TL431 family of programmable shunt regulators, widely used as voltage references. It serves as a cost-effective alternative to Zener diodes in feedback loops. The device integrates a 2.5V internal reference with error amplifier functionality. It is commonly found in AC/DC converters, battery chargers, and industrial control systems requiring stable voltage rails.
Replacement Considerations
TL431AILPR offers ±1% accuracy in the same package. TL431CLPR provides ±2% accuracy. For surface mount needs, consider TL431BIDCKT in SC-70. Verify pinout compatibility and thermal performance when substituting.
