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DRV8841 Dual Motor Driver
DRV8841
Texas Instrumentsic motor driver
The DRV8841 is a dual H-bridge motor driver that can control two brushed DC motors or a bipolar stepper motor, featuring PWM control and configurable current levels.
In stock
Specifications
8- Operating Voltage
- 8.2 V to 45 V
- Supply Current
- 8 mA (VM = 24 V, fPWM < 50 kHz) mA
- Interface
- PWM
- Resolution
- 38%, 71%, 100% %
- Range
- 2.5 A (continuous motor drive output current) A
- Accuracy
- Degraded at VREF < 0.7 V
- Temperature Range
- -40°C to 150°C (TJ) °C
- Package
- 28-pin HTSSOP
Pinout
27| Pin | Name | Functions | Notes |
|---|---|---|---|
| 14, 28 | GND | GND | Device ground |
| 4 | VMA | POWER | Bridge A power supply |
| 11 | VMB | POWER | Bridge B power supply |
| 15 | V3P3OUT | POWER | 3.3-V regulator output, can be used to supply VREF |
| 1 | CP1 | GPIO | Charge pump flying capacitor |
| 2 | CP2 | GPIO | Charge pump flying capacitor |
| 3 | VCP | POWER | High-side gate drive voltage |
| 21 | AIN1 | GPIO | Bridge A input 1, logic input controls state of AOUT1 |
| 20 | AIN2 | GPIO | Bridge A input 2, logic input controls state of AOUT2 |
| 24 | AI0 | GPIO | Sets bridge A current: 00 = 100%, 01 = 71%, 10 = 38%, 11 = 0 |
| 25 | AI1 | GPIO | Internal pulldown, logic input controls state of AOUT2 |
| 22 | BIN1 | GPIO | Bridge B input 1, logic input controls state of BOUT1 |
| 23 | BIN2 | GPIO | Bridge B input 2, logic input controls state of BOUT2 |
| 26 | BI0 | GPIO | Sets bridge B current: 00 = 100%, 01 = 71%, 10 = 38%, 11 = 0 |
| 27 | BI1 | GPIO | Internal pulldown, logic input controls state of BOUT2 |
| 19 | DECAY | GPIO | Decay mode: low = slow decay, open = mixed decay, high = fast decay |
| 16 | nRESET | GPIO | Active-low reset input initializes internal logic and disables the H-bridge outputs |
| 17 | nSLEEP | GPIO | Logic high to enable device, logic low to enter low-power sleep mode |
| 12 | AVREF | ADC | Bridge A current set reference input |
| 13 | BVREF | ADC | Bridge B current set reference input |
| 18 | nFAULT | GPIO | Logic low when in fault condition (overtemperature, overcurrent) |
| 6 | ISENA | GND | Bridge A ground / Isense |
| 9 | ISENB | GND | Bridge B ground / Isense |
| 5 | AOUT1 | PWM | Bridge A output 1, connect to motor winding A |
| 7 | AOUT2 | PWM | Bridge A output 2, connect to motor winding A |
| 10 | BOUT1 | PWM | Bridge B output 1, connect to motor winding B |
| 8 | BOUT2 | PWM | Bridge B output 2, connect to motor winding B |
Interactive pinout
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DRV8841
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