TI DRV8803DWR

The DRV8803 device is an integrated 4-channel low side driver solution for any low side switch application. The integrated overcurrent protection limits the motor current to a fixed maximum. Four logic inputs control the lowside driver outputs which consist of four N-channel MOSFETs that have a typical RDS(on) of 500 mΩ. A single power input VM serves as device power and is internally regulated to power the internal low side gate drive. Motor speed can be controlled with pulse-width modulation at frequencies from 0 kHz to 100 kHz. The device outputs can be disabled by bringing nENBL pin high. The thermal shutdown protection enables the device to automatically shut down if the die temperature exceeds a TTSD limit. UVLO protection will disable all circuitry in the device if VM drops below the undervoltage lockout threshold.

• 4-channel protected low-side driver
• 4 NMOS FETs with overcurrent protection
• Integrated freewheeling clamp diodes
• Parallel interface
• DW package: max drive current per channel (at 25°C) — 1.5A (single channel on) / 800mA (all four channels on)
• PWP package: max drive current per channel (at 25°C, adequate PCB thermal dissipation) — 2A (single channel on) / 1A (all four channels on)
• 8.2V to 60V operating supply voltage range
• Thermally enhanced surface-mount package

• Relay driver
• Unipolar stepper motor driver
• Solenoid driver
• General low-side switching applications