8 Amps H-bridge motor driver IC with PWM control for DC motor applications

Allegro microsystems has made available a new 8 Amps H-bridge DC brush motor driver IC STA6940M providing complete control and drive for brush DC motor applications.

The STA6940M offers internal fixed off time, pulse-width modulation (PWM) control of the output current with an operating level of 4 Amp targeting office automation and industrial markets.

Key features are,

Power supply voltage (VBB): 44 V maximum, 10 to 40 V normal operating range
Logic supply voltage (VDD): 3 to 5.5 V compatible
Output current (Io): 4 Amps average, 8 Amps maximum
Output elements are all N-channel MOSFETs to reduce losses
Has internal charge pump
Forward, reverse, free, and brake control modes available
Constant-current control: Off-time 35 µs, fixed (Slow Decay mode)
Internal Overcurrent Protection (OCP) circuitry: Off-time 142 µs fixed (Fast Decay mode)
Internal Thermal Shutdown (TSD) circuitry

Package: ZIP type 18-pin fully-molded package (STA package).