0
ACTIVE
Control interface |
Hardware (GPIO) |
Control mode |
Independent 1/2-Bridge, PWM |
Sleep current (mA) |
0.5 |
Vs (max) (V) |
70 |
Vs (min) (V) |
8 |
Vs ABS (max) (V) |
70 |
Peak output current (A) |
2.5 |
Operating temperature range (°C) |
-40 to 125 |
Rating |
Catalog |
Topology |
Push-Pull |
HVSSOP (DGQ)-28-34.79 mm² 7.1 x 4.9
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.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
