Service manual SC-150
-37-
4-8-4 Pins description
pin
name
symbol
description
1
Overcurrent / feedback
O.C.P./ F.B.
Input of over current detection signal and
feedback signal
2
Source
S
MOSFET source
3
Drain
D
MOSFET drain
4
Supply
V
IN
Input of power supply for control circuit
5
Ground
GND
Ground
4-8-5 Control part electrical characteristics
IC PIN
RATING
NUMBER
MIN.
TYPE
MAX
Operation start voltage
4-5
V
IN
(on)
14.4
16
17.6
V
Operation stop voltage
4-5
V
IN
(off)
9
10
111
V
Circuit current in
4-5
I
IN
(on)
-
-
30
mA
operation
Circuit current in non-
4-5
I
IN
(off)
-
-
100 mA
A
operation
Maximum OFF time
-
T
OFF
(max)
45
-
55
SEC
Minimum time for input of
1-5
T
TH
(2)
-
-
1.0
SEC
quaxi resonant signals
Minimum off time
-
T
OFF
(min)
-
-
1.5
SEC
O.C.P./F.B. terminal
1-5
V
TH
(1)
0.68
0.73
0.78
V
threshold voltage 1
O.C.P./F.B. terminal
1-5
V
TH
(2)
1.3
1.45
1.6
V
threshold voltage 2
O.C.P./F.B. terminal extraction
1-2
I
OCP/FB
1.2
1.35
1.5
mA
current
O.V.P. operation voltage
4-5
V
IN
(OVP)
20.5
22.5
24.5
V
Latch circuit sustaining voltage
4-5
I
IN
(H)
-
-
400
A
Latch circuit release voltage
4-5
V
IN
(La.off)
6.6
-
8.4
V
Thermal shutdown operating
-
T
J
(TSD)
140
-
-
0
C
temperature
SYMBOL
UNIT
DESCRIPTION
Summary of Contents for CHASSIS : SC-150 Model : DSC-3220E
Page 35: ...Service manual SC 150 34 Block diagram TDA6107Q...
Page 44: ...Service manual SC 150 43 5 Circuit description 5 1 Block diagram...
Page 62: ...Service manual SC 150 61 5 9 2 2 STR F6654 oscillating operation...
Page 82: ...Service manual SC 150 81 8 1 PCB MAIN...
Page 83: ...Service manual SC 150 82 8 2 PCB UNION...
Page 84: ...Service manual SC 150 83 9 1 Schematic Diagram MAIN...
Page 85: ...Service manual SC 150 84 9 2 Schematic Diagram UNION...
Page 86: ......
