ncp5215 ON Semiconductor, ncp5215 Datasheet - Page 2

• Manufacturer Part Number: ncp5215
• Description: Dual Synchronous Buck Controller For Notebook
• Manufacturer: ON Semiconductor

5VCC
Vin
Vo1
Vo2
VREF
VREF
VREF
VREF
TRESET1
TRESET2
CS1-/Vo1
CS2-/Vo2
PGOOD1
PGOOD2
COMP1
COMP2
VDRP1
VDRP2
FPWM
AGND
ILIM1
FSET
VREF
ILIM2
CS1+
CS2+
INV1
INV2
VCC
SS1
EN1
SS2
EN2
FB1
FB2
VIN
40
33
34
37
38
36
39
35
25
26
11
18
17
14
13
15
12
10
16
9
7
2
1
3
4
5
6
8
Ohm
Ohm
12
12
CDIFF1
CDIFF2
DSCH1
DSCH2
CDIFF1
CDIFF2
VREF
VREF
0.8V
Over Current
Over Current
Soft Start 1
Soft Start 2
Detector 1
Detector 2
Figure 1. Internal Block Diagram and Typical Application
OSC
OC1
OC2
Digital Counter &
180
COMP1
COMP2
o
CCM1
CCM2
TRE1
TRE2
Phase Shift
FB1
FB2
CLK
CLK
http://onsemi.com
CLK1
CLK2
RAMP GENERATOR
RAMP GENERATOR
NCP5215
PWM LOGIC
PWM LOGIC
&
NCP5215
&
1
2
2
SHUTDOWN
VIN
VIN
THERMAL
FPWM
FPWM
VCC
Vin
TSD
FB1
EN1
OC1
DSCH1
PGOOD1
FB2
EN2
OC2
DSCH2
PGOOD2
LSEN1
LSEN2
PWM1
SWN1
PWM2
SWN2
OVP1
OVP2
DRIVER
DRIVER
CONTROL LOGIC
GATE
GATE
PROTECTION
1
2
EN_DRV2
VREF
EN_DRV1
and
30
31
32
29
28
27
21
20
19
22
23
24
BST1
TG1
SWN1
VCCP1
BG1
PGND1
BST2
TG2
SWN2
VCCP2
BG2
PGND2
5VCC
5VCC
5VCC
5VCC
5VCC
Vin
Vin
CS1+
CS2+
Vin
CS1-
CS2-
Vo1
Vo2