一、DESCRIPTION
The BDR6622T is a dual bridge motor driver which hastwo H-bridge drivers, and can drive two DC brushmotors, a bipolar stepper motor, solenoids, or otherinductive loads.
It operates from 2.7V to 15V, and can deliver loadcurrent up to 700mA per channel. The output driverblock of each H-bridge consists of N-channel powerMOSFETS configured as an H-bridge to drive the motor
windings. Each H-bridge includes circuitry to regulate orlimit the winding current.
The internal safety features include sinking andsourcing current limits implemented with externalsensors, under-voltage lockout, over current protection(OCP) and thermal shutdown. An over-temperatureoutput flag is available to indicate thermal shutdown.The BDR6622T is packaged in 16-pin, 5.0mm×6.4mmTSSOP-EP and TSSOP, 3mm×3mm and 4mmx4mmQFN package with an exposed thermal pad on the back.
二、FEATURES
?Wide Power Supply Voltage Range: 2.7V to 15V
?Two Internal Full-Bridge Drivers
?Internal Charge Pump for the High-Side Driver
?Low Quiescent Current: 1.1mA
?Low Sleep Current: 1μA
?Thermal Shutdown and Under-Voltage LockoutProtection
?Over Current Protection (OCP)
?Over-Temperature Output Flag
?Thermally-Enhanced Surface-Mount Package
?Low MOSFET On Resistance (HS: 600mΩ;LS:570 mΩ)
三、APPLICATIONS
?Digital Still Cameras
?POS Printers
?Video Security Camera
?Robotics
?Battery Powered Toys