GA1706 Goodark Electronics, GA1706 Datasheet - Page 3

• Manufacturer Part Number: GA1706
• Description: Preliminary Datasheet Primary Side Control Ic For Off-line Battery Chargers Ap3706 General Description
• Manufacturer: Goodark Electronics

Functional Block Diagram
Jun. 2009 Rev. 1. 0
COMP
CS
FB
0.46V
0.1V
4.0V
0.5V
Tons
COMP
COMP
COMP
EA
Tons
pfm
V+
pfm
UVLO
S&H
LEB Delay
Figure 3. Functional Block Diagram of GA1706
0.75*I
430ns
Vea
V+
Detector
COMP
Tonsec
OCkP
OVP
Vea
I
pfm_d
t
&
V
DD
pfm_d
3.75V
COMP
pro
3
Tons
R
S
R
S
Q
Q
CV_ctrl
CC_ctrl
VCC
Regulator
Bias
&
Preliminary Datasheet
pfm
UVLO
Driver
VDD
BIAS
OUT
GND