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TL431A Pinout Diagram

Part Series:TL431A Series
Category:Voltage References
Description:Shunt Voltage Reference Adjustable Precision Shunt Regulator V-Ref Adjustable 2.495V to 36V 100mA 3Pin SOP T/R
Document:TL431AIDBZR Datasheet PDF (75 Pages)

TL431AIDBZR - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
3 Pin
Capacitance Tolerance
±1 %
Case/Package
SOT-23-3
Input Voltage (DC)
2.50V ~ 36.0V
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TL431AIDBZR - TI Function Overview

Description
The TL431 and TL432 devices are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.2 Ω.
Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. The TL432 device has exactly the same functionality and electrical specifications as the TL431 device, but has different pinouts for the DBV, DBZ, and PK packages.
Features
• Reference Voltage Tolerance at 25°C
– 0.5% (B Grade)
– 1% (A Grade)
– 2% (Standard Grade)
• Adjustable Output Voltage: Vref to 36 V
• Operation From −40°C to 125°C
• Typical Temperature Drift (TL431B)
– 6 mV (C Temp)
– 14 mV (I Temp, Q Temp)
• Low Output Noise
• 0.2-Ω Typical Output Impedance
• Sink-Current Capability: 1 mA to 100 mA
Applications
• Adjustable Voltage and Current Referencing
• Secondary Side Regulation in Flyback SMPSs
• Zener Replacement
• Voltage Monitoring
• Comparator with Integrated Reference
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