DRV8838DSGR Texas Instruments 马达/运动/点火控制器和驱动器 1.8A Low VTG Brushed DC Motor Driver

1 Features

1• H-Bridge Motor Driver

– Drives a DC Motor or Other Loads

– Low MOSFET On-Resistance: HS + LS

280 mΩ

• 1.8-A Maximum Drive Current

• Separate Motor and Logic Supply Pins:

– Motor VM: 0 to 11 V

– Logic VCC: 1.8 to 7 V

• PWM or PH-EN Interface

– DRV8837: PWM, IN1 and IN2

– DRV8838: PH and EN

• Low-Power Sleep Mode With 120-nA Maximum

Sleep Current

– nSLEEP pin

• Small Package and Footprint

– 8-Pin WSON With Thermal Pad

– 2.0 × 2.0 mm

• Protection Features

– VCC Undervoltage Lockout (UVLO)

– Overcurrent Protection (OCP)

– Thermal Shutdown (TSD)

2 Applications

• Cameras

• DSLR Lenses

• Consumer Products

• Toys

• Robotics

• Medical Devices

3 Description

The DRV883x family of devices provides an

integrated motor driver solution for cameras,

consumer products, toys, and other low-voltage or

battery-powered motion control applications. The

device can drive one dc motor or other devices like

solenoids. The output driver block consists of Nchannel

power MOSFETs configured as an H-bridge

to drive the motor winding. An internal charge pump

generates needed gate drive voltages.

The DRV883x family of devices can supply up to

1.8 A of output current. It operates on a motor power

supply voltage from 0 to 11 V, and a device power

supply voltage of 1.8 V to 7 V.

The DRV8837 device has a PWM (IN1-IN2) input

interface; the DRV8838 device has a PH-EN input

interface. Both interfaces are compatible with

industry-standard devices.

Internal shutdown functions are provided for

overcurrent protection, short-circuit protection,

undervoltage lockout, and overtemperature.