EXAMPLE BOARD LAYOUTDBV0005ASOT-23 - 1.45 mm max height SMALL OUTLINE TRANSISTOR PKG 5X (1.1) 1 5 5X (0.6) SYMM (1.9) 2 2X (0.95) 3 4 (R0.05) TYP (2.6) LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE:15X SOLDER MASK SOLDER MASK METAL UNDER METAL OPENING OPENING SOLDER MASK EXPOSED METAL EXPOSED METAL 0.07 MAX 0.07 MIN ARROUND ARROUND NON SOLDER MASK SOLDER MASK DEFINED DEFINED (PREFERRED) SOLDER MASK DETAILS 4214839/E 09/2019 NOTES: (continued) 5. Publication IPC-7351 may have alternate designs. 6. Solder mask tolerances between and around signal pads can vary based on board fabrication site. www.ti.com 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