1 Features
1• Dual-H-Bridge Current-Control Motor Driver
– Capable of Driving Two DC Motors or One HStepper
Motor
• Two Control Modes:
– Built-In Indexer Logic With Simple
STEP/DIRECTION Control and Up to
1/32-Step Microstepping
– PHASE/ENABLE Control, With the Ability to
Drive External References for > 1/32-Step
Microstepping
• Output Current 1.5-A Continuous, 2.2-A Peak per
H-Bridge (at VM = 5 V, 25°C)
• Low R DS(ON): 305-mΩ HS + LS
(at VM = 5 V, 25°C)
• Wide Power Supply Voltage Range:
2.5 V to 10.8 V
• Dynamic tBLANK and Mixed Decay Modes for
Smooth Microstepping
• PWM Winding Current Regulation and Limiting
• Thermally Enhanced Surface-Mount Package

2 Applications
• Battery-Powered Toys
• POS Printers
• Video Security Cameras
• Office Automation Machines
• Gaming Machines
• Robotics

3 Description
The DRV8834 provides a flexible motor driver
solution for toys, printers, cameras, and other mechatronic applications. The device has two HStepper
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).