STK681-352-E データシートの表示（PDF） - SANYO -> Panasonic
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STK681-352-E Datasheet PDF : 14 Pages
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<Configuration of the Vref input pin>
STK681-352-E
Pin 19
Amplifier
To 1, 2, 3 pins
Vref/4.9
VSS
VDD=5V
PWM control
To MOSFET
gate
[VCC Reduced voltage detection]
The internal control IC of the driver has a function that detects reduced voltage when VCC is supplied, to prevent
insufficient internal P-channel MOSFET gate voltage. The reduced voltage detection level is set to VCC = 15V (typ.).
15V
VCC
MOSFET
off
MOSFET
off
When VCC < 15V, an internal control voltage has not risen above the preset threshold level, so ENABLE must be set
to low in order to turn off the MOSFET.
No.A1929-10/14
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