CS51021A ONSEMI [ON Semiconductor], CS51021A Datasheet - Page 6

• Manufacturer Part Number: CS51021A
• Description: Enhanced Current Mode PWM Controller
• Manufacturer: ONSEMI [ON Semiconductor]

SLEEP
SLOPE
I
COMP
LGND
SYNC
SENSE
R
I
V
T
V
SET
OV
CC
C
FB
T
53 mA
2.5 V
V
Q
+
−
REF
−
2
+
+
−
+
Start
Stop
−
V
2.0 V
12.5 mA
0.1
0.8
REF
4.3 V
+
SS
Clamp
−
+
−
E/A
−
CS51021A, CS51022A, CS51023A, CS51024A
+
V
−
V
Monitor
+
Σ
CC
FB
2.5 V
_OK
200 ns
−
0.1 V
V
REF
+
D
2
= 5.0 V
G
D
4
1
+
OV
Monitor
−
1.33
OSC
−
I
Clamp
+
Figure 2. Block Diagram
SET
DISABLE
http://onsemi.com
20 k
55 ns
Blank
10 k
D
3
6
4.75 V
+
−
V
2nd
Threshold
−
PWM
Comp
+
ISENSE
+
−
V
−
+
REF
_OK
Monitor
G
1
SS
−
+
FAULT
G
S
R
+
−
3
F
1
Q
Monitor
4.7 V
1.45 V
Discharge
UV
Latch
+
−
G
2
D
4
V
REF
+
−
55 mA
13.5 V
ZD
1
V
V
GATE
PGND
SS
UV
REF
C