A3916 Dual DMOS Full-Bridge Motor Driver FEATURES AND BENEFITS DESCRIPTION Designed for pulse-width-modulated (PWM) control of low- Wide, 2.7 to 15 V input voltage operating range voltage stepper motors and single and dual DC motors, the Dual DMOS full-bridges: drive two DC motors or A3916 is capable of output currents up to 1 A per channel and one stepper motor operating voltages from 2.7 to 15 V. Low R outputs DS(ON) Synchronous rectification for reduced power dissipation The A3916 has an internal fixed off-time PWM timer that sets Low-current sleep mode a peak current based on the selection of a current sense resistor. Overcurrent protection An output fault flag is provided that notifies the user of a TSD Internal UVLO and thermal shutdown circuitry or overcurrent protection event. Integrated charge pump The A3916 is supplied in a low-profile 3 3 mm 16-terminal Pin-to-pin compatible with A3906 QFN (suffix ES) and a low-profile 4 4 mm 20-terminal QFN (suffixes ES, -1) both with exposed power tabs for PACKAGES: enhanced thermal dissipation. 16-contact QFN 3 mm 3 mm (suffix ES) 20-contact QFN 4 mm 4 mm (suffix ES,-1) Not to scale VCP VCP 0.1 F 0.1 F 2.7 to 15 V 2.7 to 15 V VBB VBB SLEEPn SLEEPn A3916 A3916 IN1 IN1 IN2 IN2 OUT1A OUT1A CLKIN3 CLKIN3 OUT1B OUT1B IN4 IN4 DC Step Motor Motor SENSE1 FAULTn FAULTn SENSE1 OUT2A OUT2A OUT2B OUT2B DC Motor GND SENSE2 SENSE2 GND Figure 1: Typical Applications A3916-DS, Rev. 5 February 3, 2020 MCO-0000139A3916 Dual DMOS Full-Bridge Motor Driver SPECIFICATIONS SELECTION GUIDE Part Number Packaging Packing A3916GESTR-T 3 3 mm 16-contact QFN package 1500 pieces per 7-inch reel A3916GESTR-T-1 4 4 mm 20-contact QFN package 1500 pieces per 7-inch reel ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Notes Rating Unit Supply Voltage V 15 V BB Output Current I Continuous 1.0 A OUT Output Current (parallel mode) I Continuous 1.8 A OUT(PAR) Continuous 0.5 V Sense Voltage V SENSEx Pulsed, t < 1 s 2.5 V w Logic Input Voltage Range V 0.3 to 5.5 V IO Junction Temperature T 150 C J(MAX) Storage Temperature Range T 55 to 150 C stg Operating Temperature Range T Range G 40 to 105 C A THERMAL CHARACTERISTICS: May require derating at maximum conditions see application information Characteristic Symbol Test Conditions* Value Unit 3 3 mm ES package 4-layer PCB based on JEDEC standard 47 C/W RJA 4 4 mm ES-1 package 4-layer PCB based on JEDEC standard 37 C/W *Additional thermal information available on the Allegro website. 2 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com