NCP5222 ON Semiconductor, NCP5222 Datasheet - Page 4

• Manufacturer Part Number: NCP5222
• Description: High Performance Dual-channel / Two-phase Synchronous Buck Controller For Notebook Power System
• Manufacturer: ON Semiconductor

27
28
18
2
3
1
7
9
8
6
5
CS1+
CS1−/Vo1
DRVS /
2CH
FB1
COMP1
ICS1
I CS2
CS2+
CS2−/Vo2
FB2
COMP2
PGOOD1
PGOOD2
CS1−
CS2−
2PH
Configur ation
Sharing−FET
Detection
Sharing
Driver for
Control
DISCHG2
DISCHG1
G i
G i
G m
Share
Share
2PH
20k
20k
Figure 3. Functional Block Diagram
920mV
800mV
640mV
30mV
1.25V
SS2
SS1
http://onsemi.com
Reference
Generator
4
OC1
OC2
OV1
UV1
OV2
UV2
OSC
CLK_H
PWM Control 1
PWM Control 2
26
10
Divider & 180°
Phase Shifter
20
16
CLK2
CLK1
Skip1
Skip2
DH_Pre1
DL_Pre1
DH_Pre2
DL_Pre2
Soft−Start
Digital
SS1
SS2
Gate Driver 1
Gate Driver 2
POR
Shut Down
Thermal
P GND1
P GND2
SWN1
SWN2
AGND
VCCP
VCCP
BST1
BST2
VCC
DH1
DH2
DL1
DL2
VIN
25
24
23
19
22
21
17
11
12
13
14
15
29
4