DISCONTINUED: This device is no longer in production. The device should not be purchased for new design applications. Samples are no longer available.
Date of status change: December 28, 2019.
Recommended Substitutions: For existing customer transition, and for new customers or new applications, refer to A4955 and A4956.
Designed for pulse-width-modulated (PWM) control of DC
motors, the A5957 is capable of 50 V operation and provides
gate drive for an all N-channel external MOSFET bridge.
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 VDS protection, thermal
shutdown with hysteresis, undervoltage monitoring of VBB,
and crossover-current protection.
The A5957 is supplied in a low-profile, 4×4 mm, 20-contact
QFN package (suffix “ES”) with exposed thermal pad.
