DRV8313EVM Datasheet, PDF (11/18 Pages) Texas Instruments – DRV8313 TRIPLE HALF-H-BRIDGE DRIVER IC

DRV8313
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SLVSBA5A – OCTOBER 2012 – REVISED NOVEMBER 2012
The functions would be as shown in Table 2.
Function
IN1
Off or
coast
X
Off or
coast
X
Forward
1 / PWM
Reverse
0
Brake or
slow decay
0
Brake or
slow decay
1
Table 2. Bidirectional Motor Plus Motor or Solenoid Signals
Motor 1
EN1
OUT1
IN2
Motor 2 or Solenoid
EN2
OUT2 Function
IN3
EN3
0
Z
X
X
X
On
1 / PWM
1
X
X
X
0
X
Off or slow
decay
0
1
1
1
0
1
0
Off or
coast
X
0
1
0
1 / PWM
1
1
1
0
0
1
0
1
1
1
1
1
OUT3
1
0
X
Applying a PWM signal to the appropriate INx pin(s) as shown in Table 2 could implement PWM speed control.
Another possibility is controlling three different loads. Note that it is possible to return one side of the load either
to the power supply (VM) or to ground.
OUT1
OUT2
Motor or
Solenoid 1
VM
Motor or
Solenoid 2
OUT3
Motor or
Solenoid 2
Figure 6. Three Independent Load Connections
Motor or Solenoid 1
Function IN1
EN1
On
1 / PWM
1
Off or
slow
0
1
decay
Off or
coast
X
0
Table 3. Three Independent Load Signals
OUT1
1
0
X
Motor or Solenoid 2
Function IN2
EN2
On
1 / PWM
1
Off or
slow
0
1
decay
Off or
coast
X
0
OUT2
1
0
X
Motor or Solenoid 3
Function IN3
EN3
On
1 / PWM
1
Off or
slow
0
1
decay
Off or
coast
X
0
OUT3
1
0
X
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