NCP1606 ON Semiconductor, NCP1606 Datasheet - Page 2

• Manufacturer Part Number: NCP1606
• Description: Cost Effective Power Factor Controller
• Manufacturer: ON Semiconductor

AC IN
C
BULK
D
BOOST
L
BOOST
V
OUT
R
ZCD
C
R
R
R
COMP
SENSE
OUT1
OUT2
Control
Ct
ZCD
Ct
CS
FB
Shutdown
V
2.5 V
V
ESD
Clamp
ESD
ESD
ESD
CL(POS)
Active
Clamp
270 mA
CL(NEG)
V
nPOK
V
+
E/A
CONTROL
DD
+
300
mV
LEB
+
−
V
+
−
DD
+
+
Enable
+
200 mV
+
+
−
2.3 V
1.6 V
+
−
(Enable EA)
V
Figure 2. Block Diagram
+
−
CS(limit)
I
EAsink
Clamp
http://onsemi.com
OCP
+
V
Add V
−
Shutdown
V
Clamp
Measure
V
EAH
DD
Offset
Reset
UVP
EAL
*All values shown are typical only. Refer to the “Electrical Characteristics”
V
*All SR Latches are Reset Dominant
for complete specifications.
EAL
DDGD
Off Timer
Static OVP is triggered
when clamp is activated.
2
Dynamic OVP
Static OVP
DRV
I
sink
S
R
PWM
+
−
Q
Q
>I
ovp
Demag
V
CC
ESD
nPOK
R
S
S
R
R
S
+
Q
Q
Q
Q
Q
Q
Fault
+
−
UVLO
R
S
V
Q
Q
DD
V
CC
Reg
V
DDGD
POK
nPOK
V
V
DDGD
DD
V
CC
GND
DRV