NCV8851B ON Semiconductor, NCV8851B Datasheet - Page 2

• Manufacturer Part Number: NCV8851B
• Description: Automotive Grade Synchronous Buck Controller
• Manufacturer: ON Semiconductor

C
CS
V
C
V
SYNC
R
COMP
COMP
C2
IN_IC
V
R
OSC
C
OUT
V
V
EN
R
IN
OSC
FB
FB
IN
C2
C
CS
12
20
15
16
17
14
13
11
3
1
V
SYNC
R
COMP
C
IN_IC
R
OSC
C
C1
OUT
V
EN
C1
FB
Note: This part is recommended for synchronous use only.
IN
Fixed−Frequency
Ramp
Enable
Duty
12
20
Max
11
15
16
17
3
1
Oscillator
V
Figure 1. Functional Block Diagram
CEA
CLAMP
Figure 2. Application Schematic
PWM
Clock
UVLO
TSD
10
V
OCP
AGND
http://onsemi.com
S
R
Reset
Dominant
Logic
Fault
OCP
Soft Start
NCV8851B
+
VEA
Q
Q
19
13
14
18
9
4
5
6
7
8
2
Time
V
BST
GH
GL
PGND
Fault
6V
V
CSP
CSN
V
V
Min
On
Fault
Enable
D
2
SS
SW
FB
COMP
LDO
BST
OUT
Q2
Q1
+
V
V
www.DataSheet.co.kr
IN_CS
SS
V
C
REF
V2
BST
C
I
LDO
LIMIT
V1
R
Nonoverlap
V1
6V
C
CSA
ACL
BST
+
OUT
V
+
L
REF
+
V
ACL
+
−
V
IN
R
19
18
10
9
4
5
6
7
8
2
S
6V
BST
GH
V
GL
PGND
V
CSP
CSN
AGND
SW
IN_CS
OUT
R
R
C +
F1
F0
V
+
−
OUT
Datasheet pdf - http://www.DataSheet4U.net/