The DRV8844A is a four-channel, individually controllable half-bridge driver for a wide range of applications. The device supports up to 2.5A peak or 1.75A RMS output current at 24V and 25°C with proper PCB heatsinking. The output stage of the device consists of N-channel power MOSFETs configured as four independent half-bridges, allowing the device to be used for driving two DC motors, one stepper motor, four solenoids, or other loads. Each output can be a LS switch (low-side switch), HS switch (high-side switch), or a push-pull output driver.
Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split (positive and negative) power supplies, the logic inputs and nFAULT output are referenced to a separate floating ground pin. Additionally, the DRV8844A supports the connection of sense resistors on each individual half-bridge, allowing for current sensing at the system level for applications such as motor control.
Internal shutdown functions are provided for over current protection, short circuit protection, undervoltage lockout, and overtemperature.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | DRV8844A Quad Half-Bridge Driver with Independent Grounds datasheet | PDF | HTML | 07 Aug 2025 |
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HVSSOP (DGQ) | 28 | Ultra Librarian |
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