The DRV8841 provides an integrated dual H-bridge motor driver solution for printers, scanners, and other automated equipment applications. The device can be used to drive one or two brushed DC motors, a bipolar stepper motor, or other loads. A simple PWM interface allows easy interfacing to controller circuits.
The output driver block consists of N-channel power MOSFETs configured as H-bridges. The DRV8841 an supply up to 2.5-A peak or 1.75-A RMS output current (with proper heat sinking at 24 V and TA = 25°C) per H-bridge.
A low-power sleep mode is provided which shuts down internal circuitry to achieve very low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin. Internal protection features are provided for overtemperature, overcurrent, and undervoltage. Fault conditions are indicated by a nFAULT pin.
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$) |
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DRV8841 |
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2 | 8.2 | 45 | 3 | PWM | Hardware (GPIO) | 4 | Current Regulation | 28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28) | 400 | 1.55 | 1ku |
DRV8843 |
|
2 | 8.2 | 45 | 3 | PWM | Hardware (GPIO) | 4 | Current Regulation | 28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28) | 400 | 1.55 | 1ku |