The DRV8218 is an integrated H-bridge motor driver
featuring four N-Channel power FETs, a charge pump regulator, and built-in
protection circuitry. A tripler charge pump architecture enables operation down to
1.8V, maintaining stable RDS(on) even at low battery voltages. All
capacitors are integrated, minimizing PCB footprint and enabling 100% duty cycle
operation.
The device supports three control interface modes
- PWM (IN1/IN2), phase/enable (PH/EN), and independent half-bridge - as well as a
parallel half-bridge mode. Each interface includes a low-power sleep mode that
reduces quiescent current to under 120nA by shutting down most internal
circuitry.
Output current reaches up to 8A peak, with a logic
supply range of 1.8V to 5.5V and a motor supply range of 1.8V to 11V. Built-in
protection includes undervoltage lockout (UVLO), overcurrent protection (OCP), and
thermal shutdown (TSD). The DRV8218 is part of a pin-to-pin compatible family with
scalable RDS(on) and supply voltage options. See Device Comparison for details, or explore TIs full portfolio of brushed motor drivers at ti.com.
The DRV8218 is an integrated H-bridge motor driver
featuring four N-Channel power FETs, a charge pump regulator, and built-in
protection circuitry. A tripler charge pump architecture enables operation down to
1.8V, maintaining stable RDS(on) even at low battery voltages. All
capacitors are integrated, minimizing PCB footprint and enabling 100% duty cycle
operation.
The device supports three control interface modes
- PWM (IN1/IN2), phase/enable (PH/EN), and independent half-bridge - as well as a
parallel half-bridge mode. Each interface includes a low-power sleep mode that
reduces quiescent current to under 120nA by shutting down most internal
circuitry.
Output current reaches up to 8A peak, with a logic
supply range of 1.8V to 5.5V and a motor supply range of 1.8V to 11V. Built-in
protection includes undervoltage lockout (UVLO), overcurrent protection (OCP), and
thermal shutdown (TSD). The DRV8218 is part of a pin-to-pin compatible family with
scalable RDS(on) and supply voltage options. See Device Comparison for details, or explore TIs full portfolio of brushed motor drivers at ti.com.