DRV8839DSSR Texas Instruments 马达/运动/点火控制器和驱动器 1.8A Lo Vtg Dual Half-Bridge Dvr

1 Features

1• Dual ½-H-Bridge Motor Driver

– Drives a DC Motor or One Winding of a

Stepper Motor, or Other Loads

– Low MOSFET ON-Resistance:

HS + LS 280 mΩ

• 1.8-A Maximum Drive Current

• Separate Motor and Logic Supply Pins:

– 0-V to 11-V Motor-Operating Supply-Voltage

– 1.8-V to 7-V Logic Supply-Voltage

• Individual ½-H-Bridge Control Input Interface

• Low-Power Sleep Mode With 120-nA Maximum

Combined Supply Current

• 2.00-mm × 3.00-mm 12-Pin WSON Package

2 Applications

• Battery-Powered:

– DSLR Lenses

– Consumer Products

– Toys

– Robotics

– Cameras

– Medical Devices

3 Description

The DRV8839 provides a versatile power driver

solution for cameras, consumer products, toys, and

other low-voltage or battery-powered applications.

The device has two independent ½-H-bridge drivers

and can drive one DC motor or one winding of a

stepper motor, as well as other devices like

solenoids. The output stages use N-channel power

MOSFETs configured as ½-H-bridges. An internal

charge pump generates needed gate-drive voltages.

The DRV8839 can supply up to 1.8-A of output

current. It operates on a motor power supply voltage

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

of 1.8 V to 7 V.

The DRV8839 has independent input and enable pins

for each ½-H-bridge which allow independent control

of each output.

Internal shutdown functions are provided for

overcurrent protection, short-circuit protection,

undervoltage lockout, and overtemperature.

The DRV8839 is packaged in a 12-pin,

2.00-mm × 3.00-mm WSON package (Eco-friendly:

RoHS and no Sb/Br).