STA6940M Description
bining low-power CMOS-patible logic with highcurrent, high-voltage power MOSFET outputs, the STA6940M provides plete control and drive for brush DC motors. It provides internal fixed off time, pulse-width modulation (PWM) control of the output current, rated for 4 A normal operating level. The CMOS logic section provides four modes of operation:.
STA6940M Key Features
- Power supply voltage, VBB , 44 V maximum, 10 to 40 V normal operating range
- Logic supply voltage, VDD , 3 to 5.5 V patible
- Output current, IO ,4 A average, 8 A maximum
- Output elements are all N-channel MOSFETs to reduce
- Internal charge pump
- Forward, reverse, free, and brake control modes available
- Constant-current control
- Internal Overcurrent Protection (OCP) circuitry
- Internal Thermal Shutdown (TSD) circuitry
- ZIP type 18-pin fully-molded package (STA package)