NE5562D Philipss, NE5562D Datasheet - Page 25

• Manufacturer Part Number: NE5562D
• Description: Switched-mode power supply control circuit
• Manufacturer: Philipss

Philips Semiconductors
Frequency of Operation
Estimate of Overall Efficiency. ( )
1994 Aug 31
Switched-mode power supply control circuit
0V
ON
C
OFF
7.50V
SS
2N3906
(PIN 9)
SHUT DOWN
SENSE
V
V
+5V
REMOTE
+5
OUT
Z
3.26V
10k
13k
0.22 F
220k
1.3k
5.1k
1k
570
pF
6
8
0.47 F
3
2
5
4
10k
3.80V
+
–
ERROR
AMP
SENSE
F. FWD
PWM
1
40k
0.01 F
CLOCK
DELAY
10
START/
STOP
C
H
L
A
T
+V
13 A
20
Figure 44. Forward Converter, 100W – 5V
S
OC1
= 12V
17
DOWN
SHUT
PGM
DETECTOR
550 A
SUPPLY
INVERT
OC2
16
D
R
V
E
R
I
LOW
C
C
DELAY
3
12
CL
CL
LA645V
25
1
2
(SEE FIGURE 43)
0.00 F
PIN
14
BOOTSTRAP
AUXILIARY
18
15
13
19
14
SUPPLY
RESET
HYSTERESIS
[O.C.]
100pF
4.7
ADJUST
I MAX
BYV26C
ALTERNATE
IN914
+16V
BUZ41A
CIRCUIT
1.6k
+V=48V
PIN
14
R
0.53
SH
100:1
n
10
Q
C
D
T
1
1
2
T
I
n
Q
CC
R
0.24
1
SH
T
1
1
10
BYV19-35
4.7nF
BYV26C
D
3.9
2
3.9
0.01 F
0.01 F
NE/SE5562
Product specification
D
3
L
0
+V
+5V
SL00431
COM.
OUT