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Appendix
1-7 -4 pin description
PIN
NAME
1
Overcurrently
feedback
2
Source
3
Drain
4
Supply
5
Ground
1-7 -5 Control part - electrical characteristics
Description
Operation start voltage
Operation stop voltage
Circuit current in operation
Circ. current in non-operation
Maximum off time
Minimum time for input of quaxi
resonant signals
Minimum off time
O.C.P./F.B. terminal threshold
voltage 1
O.C.P./F.B. terminal threshold
voltage 2
O.C.P./F.B. terminal extraction
current
OVP operation voltage
Latch circuit sustaining voltage
Latch circuit release voltage
Thermal shutdown operating
temperature
1-7 -6 MOSFET electrical characteristics
Description
Drain-to-source break down
voltage
Drain leakage current
On-resistance
Switching time
Thermal resistance
SYMBOL
DESCRIPTION
O.C. P/E.B.
Input of over current detection signal and
feedback signal
S
Mosfet source
D
Mosfet drain
V
Input of power supply for control circuit
IN
GND
Ground
IC pins
Symbol
Number
4-5
V
(on)
IN
4-5
V
(off)
IN
4-5
I
(on)
IN
4-5
I
(off)
IN
-
T
(max)
OFF
1-5
T
(2)
TH
-
T
(min)
OFF
1-5
V
(1)
TH
1-5
V
(2)
TH
1-2
I
OCP/FB
4-5
V
(OVP)
IN
4-5
I
(H)
IN
4-5
V
(Loff)
IN
-
T
(TSD)
J
IC pins
Symbol
Number
3-2
V
DSS
3-2
I
DSS
3-2
R
(on)
DS
3-2
tf
-
O
CH
- 20 -
Rating
Min.
Type
14.4
16
9
10
-
-
45
-
-
0.68
0.73
1.3
1.45
1.2
1.35
20.5
22.5
-
6.6
140
Rating
Min.
Type
650
-
-
-
- F
-
Service manual WP-795
Max.
17.6
111
-
30
-
100
-
55
-
1.0
-
1.5
0.78
1.6
1.5
24.5
-
400
-
8.4
-
-
Max.
-
-
-
300
-
1.95
-
250
-
0.95
Unit
V
V
mA
A
SEC
SEC
SEC
V
V
mA
V
A
V
0
C
Unit
V
A
nsec
0
C/W
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