Allegro MicroSystems A3950
the A3950 is capable of peak output currents to ±2.8 A and operating voltages to 36 V. The A3950 is supplied in a thin profile (FEATURES AND BENEFITS
● Low RDS(on) outputs● Overcurrent protection
● Motor lead short-to-supply protection
● Short-to-ground protection
● Sleep function
● Synchronous rectification
● Diagnostic output
● Internal undervoltage lockout (UVLO)
● Crossover-current protection PACKAGES: Package LP, 16-pin TSSOP with Exposed Thermal Pad A3950 DMOS Full-Bridge Motor Driver
DESCRIPTION
Designed for PWM (pulse-width modulated) control of DC motors, PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals. Internal synchronous rectification control circuitry is provided to lower power dissipation during PWM operation. Internal circuit protection includes motor lead short-tosupply / short-to-ground, thermal shutdown with hysteresis, undervoltage monitoring of VBB and VCP, and crossover-current protection. The A3950 is supplied in a thin profile (<1.2 mm overall height) 16-pin TSSOP package (LP), and a very thin (0.75 mm nominal height) QFN package.