A4956 Overview
Designed for pulse-width-modulated (PWM) control of DC motors, the A4956 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.
A4956 Key Features
- PHASE/ENABLE/MODE control logic
- Overcurrent indication
- Adjustable off-time and blank-time
- Adjustable current limit
- Adjustable gate drive
- Synchronous rectification
- Internal UVLO
- Crossover-current protection
- MOSFET VDS protection
- Voltage output proportional to load current