Datasheet TL331, TL331B, TL391B (Texas Instruments) - 3

TL331, TL331B, TL391B www.ti.com
SLVS238J – AUGUST 1999 – REVISED NOVEMBER 2020
5 Pin Configuration and Functions
IN- 1 5 VCC GND 2 + IN+ 3 4 OUT Note reversed inputs compared to similar common pinout
Figure 5-1. TL331, TL331B DBV Package, 5-Pin SOT-23, Top View
OUT 1 5 VCC GND 2 + IN- 3 4 IN+ Note reversed inputs compared to similar common pinout
Figure 5-2. TL391B DBV Package, 5-Pin SOT-23, Top View Pin Functions PIN TL331, TL331B TL391B TYPE DESCRIPTION NAME NO. NO.
IN+ 3 4 I Positive Input IN– 1 3 I Negative Input OUT 4 1 O Open Collector/Drain Output VCC 5 5 — Power Supply Input GND 2 2 — Ground Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 3 Product Folder Links: TL331 TL331B TL391B Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions Pin Functions 6 Specifications 6.1 Absolute Maximum Ratings, TL331 and TL331K 6.2 Absolute Maximum Ratings, TL331B and TL391B 6.3 ESD Ratings, TL331 and TL331K 6.4 ESD Ratings, TL331B and TL391B 6.5 Recommended Operating Conditions, TL331 and TL331K 6.6 Recommended Operating Conditions, TL331B and TL391B 6.7 Thermal Information 6.8 Electrical Characteristics, TL331B and TL391B 6.9 Switching Characteristics, TL331B and TL391B 6.10 Electrical Characteristics, TL331 and TL331K 6.11 Switching Characteristics, TL331 and TL331K 6.12 Typical Characteristics, TL331 and TL331K 6.13 Typical Characteristics, TL331B and TL391B 7 Detailed Description 7.1 Overview 7.2 Functional Block Diagram 7.3 Feature Description 7.4 Device Functional Modes 7.4.1 Voltage Comparison 8 Application and Implementation 8.1 Application Information 8.2 Typical Application 8.2.1 Design Requirements 8.2.2 Detailed Design Procedure 8.2.2.1 Input Voltage Range 8.2.2.2 Minimum Overdrive Voltage 8.2.2.3 Output and Drive Current 8.2.2.4 TL331B & TL391B ESD Protection 8.2.2.5 Response Time 8.2.3 Application Curves 9 Power Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.2 Layout Example 11 Device and Documentation Support 11.1 Documentation Support 11.1.1 Related Documentation 11.2 Receiving Notification of Documentation Updates 11.3 Support Resources 11.4 Trademarks 11.5 Electrostatic Discharge Caution 11.6 Glossary 12 Mechanical, Packaging, and Orderable Information