DRV8824PWPR ,1.6A Bipolar Stepper Motor Driver with On-Chip 1/32 Microstepping Indexer (Step/Dir Ctrl) 28-HTSSOP -40 to 85 SLVSA06J–OCTOBER 2009–REVISED JULY 20146 Pin Configuration and FunctionsPWP PACKAGE RHD PACKAGE(TO ..
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DRV8824PWPR
1.6A Bipolar Stepper Motor Driver with On-Chip 1/32 Microstepping Indexer (Step/Dir Ctrl)
8.2 to 45 V M
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1.6 A
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DRV8824SLVSA06J–OCTOBER 2009–REVISED JULY 2014
DRV8824 Stepper Motor Controller IC Features 3 DescriptionThe DRV8824 provides an integrated motor driver PWM Microstepping Stepper Motor Driver solution for printers, scanners, and other automated– Built-In Microstepping Indexer equipment applications. The device has two H-bridge Upto 1/32 Microstepping drivers anda microstepping indexer, andis intended drivea bipolar stepper motor. The output driver• Multiple Decay Modes: block consists of N-channel power MOSFETs– Mixed Decay configured as full H-bridges to drive the motor– Slow Decay windings. The DRV8824is capableof driving upto
1.6 A of current from each output (with proper– Fast Decay
heatsinking,at24V and 25°C).• 8.2-Vto 45-V Operating Supply Voltage Range simple STEP/DIR interface allows easy interfacing• 1.6-A Maximum Drive Currentat24V and to controller circuits. Mode pins allow for configurationTA= 25°C of the motorin full-stepupto 1/32-step modes. Decay• Simple STEP/DIR Interface modeis configurableso that slow decay, fast decay,• Low-Current Sleep Mode or mixed decay can be used.A low-power sleep
modeis provided which shuts down internal circuitry• Built-In 3.3-V Reference Output achieve very-low quiescent current draw. This• Small Package and Footprint sleep mode can be set usinga dedicated nSLEEP• Protection Features: pin. Overcurrent Protection (OCP) Internal shutdown functions are provided for– Thermal Shutdown (TSD) overcurrent, short circuit, undervoltage lockout, and
over temperature. Fault conditions are indicated– VMx Undervoltage Lockout (UVLO)
through the nFAULT pin.– Fault Condition Indication Pin (nFAULT)
2 Applications• Automatic Teller Machines• Money Handling Machines Video Security Cameras
the endofthe data sheet.• Printers Scanners Office Automation Machines Gaming Machines Factory Automation Robotics
Simplified Schematic
Microstepping Current Waveform
