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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.4% TO92-3
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT),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 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The TL431BCLPREG is a three-terminal programmable shunt regulator diode from onsemi, belonging to the TL431A and B series. It operates as a low temperature coefficient Zener reference, adjustable from Vref to 36 V using two external resistors. The device features a voltage reference tolerance of ±0.4% at 25°C and supports a sink current range of 1.0 mA to 100 mA. It exhibits a typical dynamic impedance of 0.22 Ω and an equivalent full-range temperature coefficient of 50 ppm/°C. Packaged in TO-92 (LP suffix), it is RoHS compliant and lead-free.
Feature Summary
- Programmable output voltage capability up to 36 V
- High precision with ±0.4% voltage reference tolerance
- Low dynamic output impedance for stable regulation
- Temperature compensated operation across rated ranges
Applications
- Digital voltmeters
- Power supply feedback control
- Op amp circuitry
- Constant current sources
Procurement Notes
Verify the specific LPRE ordering suffix against the official onsemi TL431 datasheet to confirm package style and shipping configuration. Ensure compatibility with required operating temperature ranges and tolerance specifications before procurement. Confirm availability status as product lines may undergo discontinuation or lifecycle changes.
Selection Notes
Select this component when a precise, adjustable shunt reference is required within the 2.5 V to 36 V range. The ±0.4% tolerance makes it suitable for applications demanding higher accuracy than standard Zener diodes. Consider the TO-92 through-hole package for prototyping or applications where surface mount options are not feasible.
Part Context
This part belongs to the widely used TL431 family of programmable precision references manufactured by onsemi. These devices serve as direct replacements for traditional Zener diodes in various analog and power management circuits. The TL431B variant specifically offers tighter initial accuracy compared to the A series, enhancing performance in sensitive measurement and regulation tasks.
Replacement Considerations
Compatible substitutes include other TL431B variants such as TL431BCLPRMG or TL431BCLPRAG, provided pinouts and tolerances match. Verify that alternative packages maintain the same thermal characteristics and electrical performance parameters.
