A2982 8-Channel Source Driver Features and Benefits Description TTL, DTL, PMOS, or CMOS compatible inputs Recommended for high-side switching applications that benefit 500 mA output source current capability from separate logic and load grounds, these devices encompass Transient-protected outputs load supply voltages to 50 V and output currents to -500 mA. Output breakdown voltage to 50 V These 8-channel source drivers are useful for interfacing DIP or SOIC packaging between low-level logic and high-current loads. Typical loads include relays, solenoids, lamps, stepper and/or servo motors, print hammers, and LEDs. All devices may be used with 5 V logic systems TTL, Schottky TTL, DTL, and 5 V CMOS. The device packages offered are electrically interchangeable, and will withstand a maximum Package: 20-pin SOICW (suffix LW) output off voltage of 50 V, and operate to a minimum of 5 V. All devices in this series integrate input current limiting resistors Not to scale and output transient suppression diodes, and are activated by an active high input. The package is a 20-pin wide-body SOIC with improved thermal characteristics compared to the 18-pin SOIC version it replaces (100% pin-compatible electrically). The package is lead (Pb) free, with 100% matte-tin leadframe (drop-in replacement for discon- plating. tinued 18-pin SOIC variants) Simplified Block Diagram (NC pins, 10 and 11, not present on discontinued 18-pin LW package) 29310UA2982 8-Channel Source Driver Selection Guide Part Number Package Packing Ambient Temperature T (C) A A2982SLWTR-T 20-pin SOICW 1000 per reel 20 to 85 Absolute Maximum Ratings Characteristic Symbol Notes Rating Units Output Voltage Range V 5 to 50 V CE Input Voltage V 20 V IN Output Current I 500 mA OUT Package Power Dissipation P See graph D Operating Ambient Temperature T Range S 20 to 85 C A Maximum Junction Temperature T (max) 150 C J Storage Temperature T 55 to 150 C stg 2.5 2.0 20-LEAD SOIC, R JA=90 C/W 1.5 1.0 0.5 0 25 50 75 100 125 150 AMBIENT TEMPERATURE C Allegro MicroSystems, Inc. 2 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com ALLOWABLE PACKAGE POWER DISSIPATION (W)