Description:Motor/Motion/Ignition Controllers & Drivers Automotive 37-V, 3.5A brushed DC motor driver with integrated current sensing & current sense output
SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Screening Level:
AEC-Q100
Seated Height-Max:
1.2 mm
Supply Current-Max (Isup):
7 mA
Supply Voltage-Max (Vsup):
37 V
Supply Voltage-Min (Vsup):
4.5 V
Supply Voltage-Nom (Vsup):
13.5 V
Surface Mount:
YES
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm
DRV8876QPWPRQ1 Frequently Asked Questions (FAQs)
The maximum voltage that can be applied to the VM pin is 40V, but it's recommended to keep it below 36V for reliable operation.
The sense resistor value depends on the motor current and the desired current sense accuracy. A good starting point is to use the formula Rsense = 0.05 / Imax, where Imax is the maximum motor current. Then, adjust the value based on the actual motor current and desired accuracy.
The EN (enable) pin is used to enable or disable the driver. When EN is high, the driver is enabled, and when EN is low, the driver is disabled. You can use the EN pin to control the motor's operation, such as turning it on or off, or to implement a shutdown function.
The DRV8876 has built-in overcurrent protection, but you can also add external protection components, such as a fuse or a PTC (positive temperature coefficient) thermistor, to provide additional protection. You can also use the OC (overcurrent) pin to monitor overcurrent conditions and take action accordingly.
A good PCB layout for the DRV8876 should minimize the loop area of the high-current paths, keep the sense resistors close to the IC, and use a solid ground plane to reduce EMI. It's also recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
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DRV8876QPWPRQ1 Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
