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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.2% TO92-3
- Series：-
- Mfr：Texas Instruments
- Package：Cut Tape (CT),Tape & Box (TB)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- 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) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The TL431CLPM is a three-terminal adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495V to 36V and supports a maximum cathode current of 100mA. The device features an initial accuracy of ±2.2% and a maximum temperature coefficient of 92ppm/°C. Designed for commercial applications, it functions between -40°C and 85°C. The component utilizes a TO-92-3 through-hole package with dimensions of 5.21mm length, 4.19mm width, and 5.34mm height.
Feature Summary
- Provides programmable output voltage via external resistor divider network
- Features sharp turn-on characteristics replacing Zener diodes
- Maintains stability across extended commercial temperature ranges
Applications
- High-current shunt regulators
- Voltage reference circuits
- Power supply feedback loops
Procurement Notes
Verify the specific suffix CLPM against official datasheets to confirm the ±2.2% tolerance grade and commercial temperature rating. Ensure the ordering documentation matches the TO-92-3 physical package dimensions. Confirm RoHS compliance status as indicated in the manufacturer's latest product change notices before finalizing procurement specifications.
Selection Notes
Select this component when a low-cost, high-reliability shunt regulator is required for non-critical commercial environments. The ±2.2% accuracy suits general-purpose power management where tighter tolerances are unnecessary. Consider the TO-92 package for prototyping or applications requiring through-hole mounting flexibility without complex surface mount assembly processes.
Part Context
Part of the long-standing TL431 family introduced in 1977, designed to replace temperature-compensated Zener diodes. Widely used in chargers and ATX power supplies due to its simplicity and cost-effectiveness. Functions as a parallel regulator using an internal error amplifier and controlled transistor structure.
Replacement Considerations
Compatible substitutes include TL431BILP (±2% accuracy) and TL431AILP (±1% accuracy). Verify pinout compatibility and thermal resistance requirements when transitioning between different accuracy grades within the same series.
