Side-Power 8981 Manual de usuario Pagina 4

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Advanced Power
Electronics Corp. APE8981
PIN DESCRIPTIONS
PIN SYMBOL PIN DESCRIPTION
POK
Power OK Output Pin
Internal Pull High (APE8981MP-B) or Pull Low (APE8981MP-A)
EN=High or Floating Enable
EN=Low Shutdown Mode
VIN
Power input pin of the control circuitry. The pin is monitored for Power-On Reset
purpose.
NC
No Connect
VOUT
Output Voltage
FB
Feedback Pin
GND
GND Pin
BLOCK DIAGRAM
APE8981MP-A
APE8981MP-B
4
EN
Supply input for power conversion. The pin is monitored for Power-On Reset purpose.
VCNTL
-+
VIN VOUT
GND
Error
Amp
EN
VCNTL
Soft-Start
And
Control Logic
Power-ON
Reset
Current
Limit
Thermal
Shutdown
Bandgap
FB
-+
POKDelay
POK
94%
V
REF
N-MOSFET
10uA
Enable
-+
VIN VOUT
GND
Error
Amp
EN
VCNTL
Soft-Start
And
Control Logic
Power-ON
Reset
Current
Limit
Thermal
Shutdown
Bandgap
FB
-+
POKDelay
POK
94%
V
REF
N-MOSFET
10uA
Enable
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