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DRV8843PWPR
2.5A Dual Brushed or Single Bipolar Stepper Motor Driver (PWM Ctrl) 28-HTSSOP -40 to 85
8.2 to 45 VDRV8843
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DRV8843SLVSAS8D –APRIL 2011–REVISED NOVEMBER 2015
DRV8843 Dual H-Bridge Driver Features 3 DescriptionThe DRV8843 provides an integrated dual H-bridge Dual H-Bridge Motor Driver motor driver solution for printers, scanners, and other– Single/Dual Brushed DC automated equipment applications. The device can Stepper be usedto drive oneor two brushed DC motors,a
bipolar stepper motor,or other loads.A simple PWM• IN/IN Control Interface interface allows easy interfacingto controller circuits.• Optional Fixed Frequency Current Regulation
The output driver block consistsof N-channel power– Two Bit Current control Allows Upto Four MOSFETs configuredas H-bridges. The DRV8843anCurrent Levels supply up to 2.5-A peak or 1.75-A RMS output• Low MOSFET On-Resistance current (with proper heat sinking at 24 V and 2.5-A Maximum Drive Currentat24V TA= 25°C) per H-bridge.
andTA= 25°C A low-power sleep modeis provided which shuts– Combined 400 mΩ RDS(ON)of High-Side and down internal circuitryto achieve very low quiescent
Low-Sideat24V andTA= 25°C current draw. This sleep mode can be set usinga
dedicated nSLEEP pin.• 8.2-Vto 45-V Operating Supply Voltage Range Low Current Sleep Mode Internal protection features are provided for
overtemperature, overcurrent, and undervoltage.• Built-In 3.3-V Reference Output Fault conditions are indicatedbya nFAULT pin.• Thermally Enhanced Surface Mount Package Protection Features
Device Information(1) Overcurrent Protection (OCP)– Thermal Shutdown (TSD) Undervoltage Lockout (UVLO) (1) Forall available packages, see the orderable addendumat
the endofthe datasheet.– Fault Condition Indication Pin (nFAULT)
Applications Printers Scanners Office Automation Machines Gaming Machines Factory Automation Robotics
Simplified Schematic
