Data Sheet
PRIMARY SIDE CONTROL IC FOR OFF-LINE BATTERY CHARGERS AP3706
Pin Configuration
M/P Package
(SOIC-8/DIP-8)
CS
COMP
1
2
8
7
VCC
OUT
GND
BIAS
VDD
FB
3
4
6
5
Figure 2. Pin Configurations of AP3706 (Top View)
Pin Description
Pin Number
Pin Name
CS
Function
The primary current sense
1
2
3
4
5
6
7
8
VCC
OUT
GND
FB
Supply voltage
This pin drives the base of external power NPN switch
Ground
The voltage feedback from the auxiliary winding
The 5V output of the internal voltage regulator
This pin sets the bias current inside AP3706 with an external resistor to GND
This pin connects a bypass capacitor for CC function
VDD
BIAS
COMP
Jul. 2008 Rev. 1.3
BCD Semiconductor Manufacturing Limited
2
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
