DRV8871

Product Folder Order Now Technical Documents Tools & Software Support & Community DRV8871 SLVSCY9B – AUGUST 2015 – REVISED JULY 2016 DRV8871 3.6-A Brushed DC Motor Driver With Internal Current Sense (PWM Control) 1 Features 1 H-Bridge Motor Driver – Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads Wide 6.5-V to 45-V Operating Voltage 565-mΩ Typical RDS(on) (HS + LS) 3.6-A Peak Current Drive PWM Control Interface Current Regulation Without a Sense Resistor Low-Power Sleep Mode Small Package and Footprint – 8-Pin HSOP With PowerPAD™ – 4.9 × 6 mm Integrated Protection Features – VM Undervoltage Lockout (UVLO) – Overcurrent Protection (OCP) – Thermal Shutdown (TSD) – Automatic Fault Recovery 2 Applications Printers Appliances Industrial Equipment Other Mechatronic Applications 3 Description The DRV8871 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the Hbridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulsewidth modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode. The DRV8871 device has advanced currentregulation circuitry that does not use an analog voltage reference or external sense resistor. This novel solution uses a standard low-cost, low-power resistor to set the...