STK681-352-E 查看數據表（PDF） - SANYO -> Panasonic
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STK681-352-E Datasheet PDF : 14 Pages
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5. Other Notes on Use
STK681-352-E
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
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.
(2) Input pins
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.
(3) Input Signal Lines
1) Do not use an IC socket to mount the driver, and instead solder the driver directly to the PC board to minimize
fluctuations in the GND potential due to the influence of the resistance component and inductance component of
the GND pattern wiring.
2) To reduce noise due to electromagnetic induction to small signal lines, do not design small signal lines (sensor
signals, 5V or 3.3V power supply signal lines) that run parallel near the motor output lines OUT1 and OUT2.
3) Pins 5, 11, 12 and 15 of this product are N.C pins. Do not connect any wiring to these pins.
(4) When mounting multiple drivers on a single PC board
When mounting multiple drivers on a single PC board, the GND design should mount a VCC decoupling
capacitor, C1, for each driver to stabilize the GND potential of the other drivers. The key wiring points are as
follows.
3.3V
Input
Signals
GND
79
16
17
IC1
18
1
2
19 143
Motor
1
Input
Signals
C1 for IC1
Short
Thick and short
79
16
17
IC2
18
1
2
19 143
Motor
2
Input
Signals
C1 for IC2
Thick
24V
79
16
17
IC3
18
1
2
19 143
Motor
3
C1 for IC3
GND
No.A1929-13/14
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