STK681-332-E Sanyo Semicon Device, STK681-332-E Datasheet - Page 8

• Manufacturer Part Number: STK681-332-E
• Description: Forward/Reverse Motor Driver
• Manufacturer: Sanyo Semicon Device

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I/O Functions of Each Pin
Pin Name
ENABLE
FAULT
S.GND
OUT1
OUT2
GND
V CC
V DD
Vref
IN1
IN2
Pin No.
1, 2, 3
8, 10
7, 9
4, 6
16
17
18
13
19
14
15
Input pin for turning F2 and F4 ON and OFF
At low level F2: ON and F4: OFF; at high level, F2: OFF and F4: ON
Input pin for turning F1 and F3 ON and OFF
At low level F1: ON and F3: OFF; at high level, F1: OFF and F3: ON
Pin for turning F3 and F4 ON; At high level F31 and F42: ON
ENABLE must be set Low when V DD is rising and falling.
ENABLE must be set High to drive the motor.
Monitor pin used when either of the output short-circuit detector, overcurrent detector, or overheat detector is
activated. When the detector is activated, this pin is set low and all of F1, F2, F3 and F4 in the final stage are
latched off.
This pin connects to the motor and outputs source/sync current depending on conditions at IN1 and IN2.
This pin connects to the motor and outputs source/sync current depending on conditions at IN1 and IN2.
This pin limits the peak current when motor startup.
The current setting voltage, Vref, is set to the value of 4.9 times the voltage drop of the external current
detection resistor.
The internal overcurrent detection level is 0.48V, so setting Vref < 2.0V is recommended.
Power system ground
Control system ground
Motor system supply voltage
Control system supply voltage.
STK681-332-E
Function
No. A1591-8/14
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