DESCRIPTION

The Si9987 is an integrated, buffered H-bridge with TTL compatible inputs and the capability of delivering a continuous 1 A at VDD = 5 V (room temperature) at switching rates up to 500 kHz. Internal logic prevents the upper and lower outputs of either half-bridge from being turned on simultaneously. Unique input codes allow both outputs to be forced low (for braking) or forced to a high impedance level.

The Si9987 is available in an 8-pin SOIC package, specified to operate over a voltage range of 3.8 V to 13.2 V, and the commercial temperature range of 0 °C to 70 °C (C suffix) and - 40 °C to 85 °C (D suffix). The Si9987 is available in lead free.

FEATURES

• 1 A H-bridge

• 500 kHz switching rate

• Shoot-through limited

• TTL compatible inputs

• 3.8 V to 13.2 V operating range

• Surface mount packaging1 A H-bridge

APPLICATIONS

• VCM driver

• Brushed motor driver

• Stepper motor driver

• Power converter

• Optical disk drives

• Power supplies

• High performance servo