| Number of full bridges | 2 |
| Vs (Min) (V) | 2.5 |
| Vs ABS (Max) (V) | 11.8 |
| Full-scale current (A) | 1.5 |
| Peak output current (A) | 2 |
| RDS(ON) (HS + LS) (mOhms) | 305 |
| Sleep current (uA) | 0.6 |
| Control mode | PH/EN, STEP/DIR |
| Control interface | Hardware (GPIO) |
| Micro-stepping levels | 32 |
| Features | Current Regulation |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
- Dual-H-Bridge Current-Control Motor Driver
- Capable of Driving Two DC Motors or One
Stepper Motor
- Capable of Driving Two DC Motors or One
- 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
- Built-In Indexer Logic With Simple
- Output Current 1.5-A Continuous, 2.2-A Peak per
H-Bridge (at VM = 5 V, 25°C) - Low RDS(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
The DRV8834 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).
