DRV8850

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design DRV8850 SLVSCC0D – NOVEMBER 2013 – REVISED OCTOBER 2019 DRV8850 Low-Voltage H-Bridge IC With LDO Voltage Regulator 1 Features 1 H-Bridge Motor Driver – Drives a DC Motor, One Winding of a Stepper Motor, or Other Loads – Low MOSFET On-Resistance: 65 mΩ HS + LS at 4.2V, 25°C 5-A Continuous 8-A Peak-Drive Current Internal Current Sensing With Current Sense Output 2 to 5.5-V Operating Supply Voltage Range Overvoltage and Undervoltage Lockout Low-Power Sleep Mode 100-mA Isolated Low-Dropout (LDO) Voltage Regulator 24-Pin VQFN Package 2 Applications Battery-Operated Applications With High Start-Up Torque, such as: – Personal Hygiene (Electric Toothbrushes, Shavers) – Toys – RC Helicopters and Cars – Robotics 3 Description The DRV8850 device provides a motor driver plus LDO voltage regulator solution for consumer products, toys, and other low-voltage or batterypowered motion-control applications. The device has one H-bridge driver to drive a DC motor, a voice-coil actuator, one winding of a stepper motor, a solenoid, or other devices. The output driver block consists of N-channel power MOSFETs configured as an Hbridge to drive the load. An internal charge pump generates the needed gate-drive voltages. The DRV8850 device supplies up to 5 A of continuous output current (with proper PCB heat sinking) and up to 8-A peak current. It operates on a supply voltage from...