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The DRV8837 provides an integrated motor-driver solution for cameras, consumer products, toys, and other low-voltage or battery-powered motion-control applications. The device has one H-bridge driver, and can drive one dc motor or one winding of a stepper motor, as well as other devices like solenoids. The output driver block consists of N-channel power MOSFETs configured as an H-bridge to drive the motor winding. An internal charge pump generates needed gate-drive voltages.
DRV8837器件为相机,消费类产品,玩具,和其他低电压,或电池供电的运动控制应用提供了一个集成的,电机驱动解决方案。该器件具有一个H桥驱动器,可以驱动一个直流电动机,或步进电机的一个绕组,以及其他设备,如,螺线管。其输出驱动器部件包括,N-频道功率MOSFET(配置为H电桥,以驱动电机绕组)。其内部电荷泵产生所需要的栅极驱动电压。
The DRV8837 can supply up to 1.8 A of output current. It operates on a motor power-supply voltage from 1.8 V to 11 V, and a device power-supply voltage of 1.8 V to 7 V.
The DRV8837 has a PWM (IN/IN) input interface, which is compatible with industry-standard devices.
There are internal shutdown functions for overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature.
The DRV8837 package is an 8-pin 2-mm × 2-mm WSON PowerPAD package.
Features
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
1.8-V to 11-V Motor-Operating Supply-Voltage Range
Separate Motor and Logic Supply Pins
PWM (IN/IN) Interface
Low-Power Sleep Mode With 120-nA Maximum Combined Supply Current
Dedicated SLEEP Pin
2-mm × 2-mm 8-Pin WSON Package
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Tags: 1.8A DC Drivers Low Voltage Motor Driver Motors
Article Sources: Texas Instruments |