FAN7527B
PIN Description
INV
1
2
3
4
Vcc
8
7
6
5
OUT
EA_OUT
MULT
GND
ldet
CS
(Top View)
Pin Number
Pin Name
Pin Function Description
Inverting input of the error amplifier. the output of the boost converter
should be resistively divided to 2.5V and connected to this pin.
1
INV
The output of the error amplifier. a feedback compensation network is
placed between this pin and the INV pin.
2
3
EA_OUT
MULT
Input to the multiplier stage. the full-wave rectified ac voltage is
divided to less than 2V and is connected to this pin.
Input of the PWM comparator. the MOSFET current is sensed by a
resistor and the resulting voltage is applied to this pin. an internal R/C
filter is included to reject any high frequency noise.
4
CS
5
6
ldet
Zero current detection input.
GND
The ground potential of all the pins.
Gate driver output. the push pull output stage is able to drive the
power MOSFET with peak current of 500mA.
7
8
OUT
Vcc
Supply voltage of driver and control circuits.
3
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
