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CP-780 Service Manual
4.6.4 PIN DESCRIPTION
Terminal No.
SYMBOL
DESCRIPTION
1
D
Drain terminal
3
S/GND
Source/ Ground terminal
4
VCC
Power supply terminal
5
SS/OLP
Delay at Overload/ Soft start set up terminal
6
FB
Feedback terminal
7
OCP/BD
Overcurrent Protection Input/ Bottom Detection
terminal
4.6.5 CONTROL PART - ELECTRICAL CHARACTERISTICS
RATING
DESCRIPTION
TERMINAL
SYMBOL
MIN.
TYPE MAX
UNIT
Operation start voltage
4-3
V
CC
(on)
16.3
18.2
19.9
V
Operation stop voltage
4-3
V
CC
(off)
8.8
9.7
10.6
V
Circuit current in operation
4-3
I
CC
(on)
-
-
6
mA
Circ. current in non-operation
4-3
I
CC
(off)
-
-
100
A
Maximum on time
1-3
T
ON
(max)
27.5
32.5
39.0
s
Minimum on time
1-3
T
ON
(min)
0.4
0.8
1.2
s
O.C.P./B.D. terminal
7-3
V
OCPBD
(TH1)
0.28
0.40
0.52
V
threshold voltage 1
O.C.P./B.D. terminal
7-3
V
OCPBD
(TH2)
0.67
0.80
0.93
V
threshold voltage 2
O.C.P./F.B. terminal
7-3
I
OCPBD
-250
-100
-40
A
outflow current
OVP operation voltage
4-3
V
CC
(OVP)
25.5
27.7
29.9
V
Latch circuit holding current
4-3
I
CC
(H)
-
45
140
A
Latch circuit release voltage
4-3
V
CC
(Loff)
6.0
7.2
8.5
V
4.6.6 MOSFET ELECTRICAL CHARACTERISTICS
RATING
DESCRIPTION
TERMINAL
SYMBOL
MIN.
TYPE MAX
UNIT
Drain-to-source break
1-3
V
DSS
650
-
-
V
down voltage
Drain leakage current
1-3
I
DSS
-
-
300
A
On-resistance
1-3
R
DS
(on)
-
-
0.96
Switching time
1-3
tf
-
-
400
ns
Thermal resistance
-
ch-F
-
-
1.6
o
C/W
Содержание DUB-2850
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