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).
| 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) (mΩ) | 305 |
| Sleep current (µA) | 0.6 |
| Control mode | PH/EN, STEP/DIR |
| Control interface | Hardware (GPIO) |
| Microstepping levels | 32 |
| Features | Current Regulation |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| HTSSOP (PWP) | 24 | 49.92 mm² 7.8 x 6.4 |
| VQFN (RGE) | 24 | 16 mm² 4 x 4 |
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