AMT49702 Datasheet | Allegro MicroSystems

FEATURES AND BENEFITS - AEC-Q100 Grade 1 qualified - Wide, 3.5 to 15 V input voltage operating range - Dual DMOS full-bridges: drive two DC motors or one stepper motor - Low RDS(ON) outputs - Synchronous rectification for reduced power dissipation - Low-current sleep mode - Overcurrent protection - Internal UVLO and thermal shutdown circuitry - Integrated charge pump PACKAGE: 16-lead TSSOP (suffix LP) DESCRIPTION Designed for pulse-width-modulated (PWM) control of lowvoltage stepper motors and single and dual DC motors, the AMT49702 is capable of output currents up to 1 A per channel and operating voltages from 3.5 to 15 V. The AMT49702 is an automotive-grade device and is tested across extended temperature and voltage ranges to ensure pliance in automotive or industrial applications. The AMT49702 has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor. An output fault flag is provided that notifies the user of a TSD or overcurrent protection event. The AMT49702 is supplied in a low-profile 16-lead TSSOP (suffix “LP”) with exposed power tab for enhanced thermal dissipation. Not to scale SLEEPn IN1 IN2 CINL3K IN4 OUT1A OUT1B FAULTn SENSE1 OUT2A OUT2B SENSE2 0.1 µF 3.5 to 15 V DC Motor DC Motor SLEEPn IN1 IN2 CINL3K IN4 OUT1A OUT1B FAULTn GND SENSE1 OUT2A OUT2B SENSE2 0.1 µF 3.5 to 15 V Step...