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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.2% TO92-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- 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 onsemi TL431ILPRA is a three-terminal programmable shunt regulator diode in a TO-92 (TO-226) package. It operates as a low temperature coefficient zener, programmable from Vref to 36 V using two external resistors. The device supports a cathode current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 Ω. It features an equivalent full-range temperature coefficient of 50 ppm/°C and is rated for an operating ambient temperature range of -40°C to +85°C.
Feature Summary
- Programmable output voltage capability up to 36 V
- Temperature compensated operation across the full rated range
- Low dynamic output impedance for stable regulation
Applications
- Digital voltmeters
- Power supplies
- Op amp circuitry
Procurement Notes
Verify the specific suffix 'LPRA' corresponds to the TO-92 tape and reel packaging configuration. Confirm that the 'I' designation aligns with the required -40°C to +85°C industrial temperature range for your application environment. Ensure compatibility with RoHS compliance standards if applicable to your manufacturing process.
Selection Notes
Select this component when a precision, adjustable reference is needed within the industrial temperature range. The TO-92 package suits through-hole mounting requirements. Consider the 1.0 mA minimum cathode current for regulation when designing the bias network. Verify stability boundaries if significant load capacitance is present in the circuit design.
Part Context
This part belongs to the TL431 series of programmable precision references manufactured by onsemi. It serves as a versatile alternative to traditional Zener diodes, offering superior accuracy and temperature stability. The series includes various packages and tolerance grades to support diverse power management and feedback control applications.
Replacement Considerations
Direct substitutes include other TL431 variants with matching TO-92 packaging and industrial temperature ratings, such as TL431AILPRAG or TL431BILPRAG, provided their respective tolerance specifications meet the circuit requirements.
