NCP1901DR2G ONSEMI [ON Semiconductor], NCP1901DR2G Datasheet - Page 2

• Manufacturer Part Number: NCP1901DR2G
• Description: Primary Side Combination Resonant and PFC Controllers
• Manufacturer: ONSEMI [ON Semiconductor]

PControl
PDRV
PZCD
PCS
PFB
PCT
PControl
V
DD
PZCD
VREF
I
GND
OSC
PCS
PFB
PFB
LEB
NC
NC
I
HV
PCT(C)
VCC
> 5.65 V
< 2.25 V
Clamp
Clamp
10
V
1
2
3
4
5
6
7
8
9
DD
V
+
−
PUVP
+
−
PFC UVP
Comparator
V
Shifter
−
+
SO−20 WB
Amplifier
−
+
+
−
PCS(ILIM)
V
Level
PREF
Error
PFC
Comparator
−
+
PCS
V
V
CC
POVP
−
+
Good
Comparator
Comparator
On time
PFC OVP
+
−
+
20
19
18
17
16
15
14
13
12
11
Figure 2. Functional Block Diagram
+
−
+
−
V
HBoost
HDRVhi
HVS
NC
NC
HDRVlo
PDRV
PGND
VCC
PCT
Comparator
ZCD
Figure 1. Pin Connections
ZCD
S
R
http://onsemi.com
Dominant
Reset
Latch
PDRV
UVLO
Q
Q
2
UVLO
Good
Trigger
Shifter
V
Pulse
Delay
Level
CLK
CC
Enable
S
R
Q
Q
Q
Clock
Q
Management
Delay
Q
VCC
PControl
V
VREF
PZCD
CLK
DD
GND
OSC
PCS
PFB
5 V /
HV
3 V
Undervoltage
S
R
Dominant
Reset
Latch
+
−
Detector
+
−
Reference
Voltage
SOIC−16
1
+
−
+
−
V
Q
DD
4*I
V
V
I
VCC
UVLO
OSC(C)
CC(off)
CC(on)
OSC(C)
I
start
/
/
HBoost
HDRVhi
HVS
HDRVlo
PDRV
PGND
VCC
PCT
VCC
HBoost
HDRVhi
HVS
HDRVlo
GND
OSC
VREF
HV
C
CC
D
C
boost
boost