1 Features
• Four-channel half-bridge driver
– Independent control of each half-bridge
– Can be used as low-side or high-side switch
– Outputs can be connected in parallel
• Low MOSFET RDS(ON): 210mΩ per FET
– 2.5A Maximum Drive Current at 24V, 25°C
• Bipolar power supply support up to ±32.5V
• 8V to 65V operating supply voltage range
• Separate power grounds for connection of
optional sense resistors
• Can drive various types of loads -
– Four solenoids, valves, or relays
– Two brushed-DC motors
– One stepper motor
– One or two Peltier thermoelectric coolers (TEC)
– One 3-phase brushless-DC (BLDC) motor
• Built-in 3.3V, 10mA LDO regulator
• Industry standard IN/EN digital control interface
• Protection features
– VM undervoltage lockout (UVLO)
– Overcurrent protection (OCP)
– Thermal shutdown (TSD)
– Fault condition output (nFAULT)

2 Applications
• Textile Machines
• Office Automation Machines
• Gaming Machines
• Factory Automation
• Motor Drive
• Stage Lighting
• Thermoelectric Coolers (TEC)

3 Description
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.