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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% TO92-3
- Series：-
- Mfr：Texas Instruments
- Package：Cut Tape (CT),Bulk,Tape & Box (TB)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°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 TL431BQLPM is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.5V to 36V and features an initial accuracy of 0.5%. The device supports a maximum shunt current of 100mA with a minimum operating current of 600uA. It utilizes a TO-92-3 through-hole package and functions across a temperature range of -40°C to +125°C. The component exhibits a temperature coefficient of 92 PPM/C and is classified under PMIC voltage references.
Feature Summary
- Provides adjustable output voltage capability via external resistors
- Ensures high thermal stability over extended industrial temperature ranges
- Delivers precise voltage regulation with low initial tolerance
Applications
- Precision voltage reference circuits
- Adjustable power supply designs
- Switching power supply feedback loops
Procurement Notes
Verify the specific suffix 'Q' indicates automotive qualification requirements before procurement. Confirm the package type matches the intended PCB footprint, as variations exist between tape-and-reel and ammo pack formats. Ensure the selected variant meets the required operating temperature range for the target application environment.
Selection Notes
Select this component when high accuracy and wide temperature stability are critical. The TO-92 package suits through-hole assembly processes. Consider the 0.5% initial accuracy for applications requiring tight voltage tolerances without external trimming. Evaluate the 100mA current capacity against load requirements.
Part Context
This part belongs to the TL431 family of programmable shunt regulators. It serves as a stable reference element in linear and switching power topologies. The device replaces standard Zener diodes in applications demanding superior regulation and lower dynamic impedance. It is widely used in industrial and automotive electronics.
Replacement Considerations
Check for direct pin-compatible alternatives such as TL431ACLP or TL431AILP if different accuracy grades are acceptable. Verify that substitute parts meet the same -40°C to +125°C operating temperature range and TO-92 package constraints.
