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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.2% TO92-3
- Series：-
- Mfr：onsemi
- Package：Bulk
- 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 Long Body
- Supplier Device Package：TO-92 (TO-226)
- Grade：-
- Qualification：-
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Overview
The TL431CLPG is a three-terminal programmable shunt regulator diode manufactured by onsemi. It operates as a low temperature coefficient zener, programmable from Vref to 36 V using two external resistors. The device features a wide operating current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 Ω. It offers a reference input voltage tolerance of ±2.2% at 25 °C and an equivalent full-range temperature coefficient of 50 ppm/°C typical. Designed for the commercial temperature range of 0 °C to +70 °C, it is housed in a TO-92 (LP) package.
Feature Summary
- Programmable output voltage adjustable from Vref to 36 V via external resistors
- Temperature compensated operation across the full rated ambient temperature range
- Low dynamic output impedance ensuring stable regulation performance
- Pb-Free, Halogen Free/BFR Free, and RoHS compliant construction
Applications
- Digital voltmeters
- Power supplies
- Op amp circuitry
- Voltage monitors
- Constant current sources
Procurement Notes
Verify the specific suffix CLPG corresponds to the TO-92 package and 2.2% tolerance variant. Confirm the operating temperature range aligns with commercial requirements (0 °C to +70 °C). Check for discontinuation status or alternative packaging options such as Tape & Reel if volume procurement is required. Ensure compatibility with lead-free assembly processes.
Selection Notes
Select this component when a precise, adjustable voltage reference is needed within the commercial temperature range. The TO-92 package suits through-hole applications requiring moderate power dissipation. Consider the ±2.2% initial accuracy sufficient for general-purpose regulation. Evaluate stability boundary conditions regarding load capacitance and cathode current to ensure loop stability in feedback configurations.
Part Context
This device belongs to the TL431 family of programmable precision references. It serves as a direct replacement for standard Zener diodes in many circuits. The family includes variants with different tolerances (A, B series) and extended temperature ranges (I, BV series). The LP suffix specifically denotes the TO-92 plastic package configuration.
Replacement Considerations
Compatible substitutes include TL431ACLPG (1.0% tolerance), TL431BCLPG (0.4% tolerance), and TL431ILPG (-40 °C to +85 °C range). Verify pinout compatibility and thermal characteristics when transitioning between these variants.
