DRV8834

具有 32 步分度器或双刷直流电机驱动器的 2.2A 低压步进器（分度器或 PH/EN 控制器）

The provides a flexible motor driver solution for toys, printers, cameras, and other mechatronic applications. The device has two H-bridge drivers, and is intended to drive a bipolar stepper motor or two DC motors.

The output driver block of each H-bridge consists of N-channel power MOSFETs configured as an H-bridge to drive the motor windings. Each H-bridge includes circuitry to regulate or limit the winding current.

With proper PCB design, each H-bridge of the DRV8834 can driving up to 1.5-A RMS or DC continuously, at 25°C with a VM supply of 5 V. The device can support peak currents of up to 2.2 A per bridge. Current capability is reduced slightly at lower VM voltages.

Internal shutdown functions with a fault output pin are provided for overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature. A low-power sleep mode is also provided.

The DRV8834 is packaged in a 24-pin HTSSOP or VQFN package with PowerPAD™ Eco-friendly: RoHS & no Sb/Br.

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Dual-H-Bridge Current-Control Motor Driver

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Capable of Driving Two DC Motors or One

Stepper Motor

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Two Control Modes:

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Built-In Indexer Logic With Simple

STEP/DIRECON Control and Up to

1/32-Step Microstepping

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PHASE/ENABLE Control, With the Ability to

Drive External References for > 1/32-Step

Microstepping

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Output Current 1.5-A Continuous, 2.2-A Peak per

H-Bridge at VM = 5 V, 25°C

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Low RDSON: 305-mΩ HS + LS

at VM = 5 V, 25°C

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Wide Power Supply Voltage Range:

2.5 V to 10.8 V

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Dynamic tBLANK and Mixed Decay Modes for

Smooth Microstepping

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PWM Winding Current Regulation and Limiting

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Thermally Enhanced Surface-Mount Package