AN8032
s
Terminal Equivalent Circuits
Pin No.
1
Equivalent circuit
Approx. 7.1 V
To high-speed
converter
1
Description
Voltage Regulators
I/O
I
CS:
The input terminal of comparator which detects
the current value flowing in power MOSFET.
The output level of multiplier and the current value
of power MOSFET input from the CS terminal are
compared. If the later becomes larger than the
former, the V
OUT
is set to low level and
the power MOSFET ouput is cut.
MPI:
The input terminal of multiplier
The voltage after a full-wave rectified AC input
voltage are monitored.
2
Approx. 7.1 V
I
2
3
Approx. 7.1 V Approx. 7.1 V
Error amplifier
output
Multiplier
input
3
EO:
The output terminal of error amplifier / the input
terminal of multiplier.
The error amplifier monitors the output voltage
of active filter and amplifies its error portion and
outputs to the multiplier. Therefore, this terminal
serves as another input terminal of the multiplier.
O
4
Approx. 7.1 V Approx. 7.1 V
EI:
The inverted input terminal of error amplifier
the overvoltage protection input terminal.
To the noninverted input terminal, the internal
reference voltage of IC (2.5 V typ.) is input.
I
4
Error amplifier
input
5
Approx. 7.1 V Approx. 7.1 V
OVP:
Overvoltage detection pin
It is an input terminal with over-voltage detection
function which can detect the overvoltage of the
output voltage to shut off the power MOSFET.
I
Overvoltage
protection input
5
4
PANASONIC [ PANASONIC SEMICONDUCTOR ]
