Datasheet TL431, TL431A, TL431B, TL432, TL432A, TL432B (Texas Instruments) - 4

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TL431 , TL431A, TL431B TL432 , TL432A, TL432B
SLVS543O – AUGUST 2004 – REVISED JANUARY 2015
www.ti.com 7 Specifications 7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
VKA Cathode voltage(2) 37 V IKA Continuous cathode current range –100 150 mA II(ref) Reference input current range –0.05 10 mA TJ Operating virtual junction temperature 150 °C Tstg Storage temperature range –65 150 °C (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltage values are with respect to ANODE, unless otherwise noted.
7.2 ESD Ratings VALUE UNIT
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V(ESD) Electrostatic discharge V Charged-device model (CDM), per JEDEC specification JESD22- ±1000 C101(2) (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. Manufacturing with less than 500-V HBM is possible with the necessary precautions. (2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. Manufacturing with less than 250-V CDM is possible with the necessary precautions.
7.3 Thermal Information TL43xx THERMAL METRIC(1) P PW D PS DCK DBV DBZ LP PK UNIT 8 PINS 6 PINS 5 PINS 3 PINS
RθJA Junction-to-ambient thermal 85 149 97 95 259 206 206 140 52 resistance °C/W RθJC(top) Junction-to-case (top) thermal 57 65 39 46 87 131 76 55 9 resistance (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report (SPRA953).
7.4 Recommended Operating Conditions
See(1)
MIN MAX UNIT
VKA Cathode voltage Vref 36 V IKA Cathode current 1 100 mA TL43xxC 0 70 TA Operating free-air temperature TL43xxI –40 85 °C TL43xxQ –40 125 (1) Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. 4 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TL431 TL431A TL431B TL432 TL432A TL432B Document Outline 1 Features 2 Applications 3 Description 4 Simplified Schematic Table of Contents 5 Revision History 6 Pin Configuration and Functions 7 Specifications 7.1 Absolute Maximum Ratings 7.2 ESD Ratings 7.3 Thermal Information 7.4 Recommended Operating Conditions 7.5 Electrical Characteristics, TL431C, TL432C 7.6 Electrical Characteristics, TL431I, TL432I 7.7 Electrical Characteristics, TL431Q, TL432Q 7.8 Electrical Characteristics, TL431AC, TL432AC 7.9 Electrical Characteristics, TL431AI, TL432AI 7.10 Electrical Characteristics, TL431AQ, TL432AQ 7.11 Electrical Characteristics, TL431BC, TL432BC 7.12 Electrical Characteristics, TL431BI, TL432BI 7.13 Electrical Characteristics, TL431BQ, TL432BQ 7.14 Typical Characteristics 8 Parameter Measurement Information 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.4 Device Functional Modes 9.4.1 Open Loop (Comparator) 9.4.2 Closed Loop 10 Applications and Implementation 10.1 Application Information 10.2 Typical Applications 10.2.1 Comparator With Integrated Reference 10.2.1.1 Design Requirements 10.2.1.2 Detailed Design Procedure 10.2.1.3 Application Curves 10.2.2 Shunt Regulator/Reference 10.2.2.1 Design Requirements 10.2.2.2 Detailed Design Procedure 10.2.2.3 Application Curves 10.3 System Examples 11 Power Supply Recommendations 12 Layout 12.1 Layout Guidelines 12.2 Layout Example 13 Device and Documentation Support 13.1 Related Links 13.2 Trademarks 13.3 Electrostatic Discharge Caution 13.4 Glossary 14 Mechanical, Packaging, and Orderable Information