CS5101 Cherry Semiconductor Corporation, CS5101 Datasheet - Page 4

• Manufacturer Part Number: CS5101
• Description: Secondary Side Post Regulator for AC/DC and DC/DC Multiple Output Converters
• Manufacturer: Cherry Semiconductor Corporation

14L PDIP
10
11
12
13
14
PACKAGE PIN #
1
2
3
4
5
6
7
8
9
COMP
RAMP
SYNC
LGnd
V
V
V
REF
CC
FB
16L SO Wide
12, 13
+
Ð
10
11
14
15
16
1
2
3
6
7
8
9
5
4
+
Ð
5V
1.65V
+
Ð
RAMP
2V
+
Ð
+
Ð
V
5V
REF
CC
5V
EA
2.5V
OK
+
Ð
SYNC
5V
PIN SYMBOL
10k
SYNC
V
V
LGnd
V
COMP
RAMP
IS+
IS-
IS COMP
PGnd
V
V
V
AGnd
DGnd
UVL
CC
REF
FB
G
C
D
+
Ð
5V
Q
Ð
+
+
4
1.5V
I = 200mA
10k
+
Ð
Package Pin Description
+
Ð
G
8V/7V
Circuit Description
1
2.4V
Block Diagram
Ð
+
24.6k
Synchronization input.
Logic supply (10V to 45V).
5.0V voltage reference.
Logic level ground (Analog and digital ground tied).
Error amplifier inverting input.
Error amplifier output and compensation.
RAMP programmable with the external capacitor.
Current sense amplifier non-inverting input.
Current sense amplifier inverting input.
Current sense amplifier compensation and output.
Power ground.
External power switch gate drive.
Output power stage supply voltage (8V to 75V).
Analog Ground.
Digital Ground.
BUF
External FET DRAIN Voltage Monitor.
4
REF _ OK
G
SLEEP
2
V
C
0.7V
+
Ð
+
Ð
Ð
Ð
+
+
Q
Q
+
Ð
LATCH
+
Ð
PWM
5V
4.5V/4.4V
R
S
5V
FUNCTION
5V
V
IS
V
CC
CC
5V
+
Ð
_ OK
Ð
+
0.7V
Q
Q
V
Q
2
1
CC
3
+
Ð
IS COMP
V
V
V
IS-
IS+
PGnd
D
C
G