DRV777 Datasheet, PDF (6/17 Pages) Texas Instruments – 7- bit Integrated Motor and Relay Driver

DRV777
SLRS062 – DECEMBER 2012
Application Examples
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One Amp Unipolar DC Motor Driver
An implementation of DRV777 for driving a uniploar DC motor is shown in Figure 3. With all of the channels tied
together and the input being driven at 5V, the driver can sink 1A of current. With a VOL of 0.4V this creates a
driver with 400mΩ. The input snubber circuitry is great for PWM applications that need high noise immunity.
These two features make DRV777 an ideal choice for power efficient high duty cycle motor driving applications.
Logic Input
(5V)
DRV777
VSUP
IN1
OUT1
+
IN2
OUT2
M
_
IN3
OUT3
IN4
OUT4
IN5
OUT5
IN6
OUT6
IN7
GND
OUT7
COM
VSUP
Figure 3. DRV777 as a DC Motor Driver
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