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).
Part number | Order | Number of full bridges | Vs (Min) (V) | Vs (Max) (V) | Peak output current (A) | Control mode | Control interface | Micro-stepping levels | Features | Package size: mm2:W x L (PKG) | RDS(ON) (HS + LS) (mOhms) | Approx. price (US$) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
DRV8834 |
|
2 | 2.5 | 10.8 | 2 |
PH/EN
STEP/DIR |
Hardware (GPIO) | 32 | Current Regulation |
24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24) |
305 | 1.15 | 1ku |
DRV8833 |
|
2 | 2.7 | 10.8 | 2 | PWM | Hardware (GPIO) | Current Regulation |
16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16QFN: 16 mm2: 4 x 4 (QFN | 16) 16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16) |
360 | 0.90 | 1ku | |
DRV8833C |
|
2 | 2.7 | 10.8 | 1 | PWM | Hardware (GPIO) | Current Regulation |
16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16WQFN: 9 mm2: 3 x 3 (WQFN | 16) |
1735 | 0.75 | 1ku | |
DRV8847 |
|
2 | 2.7 | 18 | 2 | PWM |
Hardware (GPIO)
I2C |
Current Regulation
Open-Load Detection |
16HTSSOP: 32 mm2: 6.4 x 5 (HTSSOP | 16)
16TSSOP: 22 mm2: 4.4 x 5 (TSSOP | 16) 16WQFN: 9 mm2: 3 x 3 (WQFN | 16) |
1000 | 0.80 | 1ku |