STK681-332-E Sanyo Semicon Device, STK681-332-E Datasheet - Page 13

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

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5V
Reg.
5. Other Notes on Use
In addition to the “Notes” indicated in the Sample Application Circuit, care should also be given to the following
contents during use.
(1) Allowable operating range
(2) Input pins
(3) Power connectors
(4) Input Signal Lines
Operation of this product assumes use within the allowable operating range. If a supply voltage or an input voltage
outside the allowable operating range is applied, an overvoltage may damage the internal control IC or the MOSFET.
If a voltage application mode that exceeds the allowable operating range is anticipated, connect a fuse or take other
measures to cut off power supply to the product.
If the input pins are connected directly to the PC board connectors, electrostatic discharge or other overvoltage
outside the specified range may be applied from the connectors and may damage the product. Current generated by
this overvoltage can be suppressed to effectively prevent damage by inserting 100Ω to 1kΩ resistors in lines
connected to the input pins.
Take measures such as inserting resistors in lines connected to the input pins
If the motor power supply V CC is applied by mistake without connecting the GND part of the power connector
when the product is operated, such as for test purposes, an overcurrent flows through the V CC decoupling capacitor,
C1, to the parasitic diode between the V DD of the internal control IC and GND, and may damage the power supply
pin block of the internal control IC.
Always connect the GND pin before supplying V CC .
1) Do not use an IC socket to mount the driver, and instead solder the driver directly to the PC board to minimize
2) To reduce noise due to electromagnetic induction to small signal lines, do not design small signal lines (sensor
3) Pins 5, 11 and 12 of this product are N.C pins. Do not connect any wiring to these pins.
fluctuations in the GND potential due to the influence of the resistance component and inductance component of
the GND pattern wiring.
signals, 5V or 3.3V power supply signal lines) that run parallel near the motor output lines OUT1 and OUT2.
15
14
Logic level Control Block
IN1
IN2
ENABLE
FAULT
Vref
S.GND
V SS
V DD
STK681-332-E
F1
F3
8
10
9
Over-current path
7
4
6
F2
F4
1
2
3
C1
Open
No. A1591-13/14
V CC
24V
Reg.
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