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Электронный компонент: NJM2374AM

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NJM2374A
Ver 4.2
- 1 -











(2.5V
40V)
NJM2374AE
(2.5V
48V)
(100Hz
100kHz)
(1.5A
max.)
PWM
DIP8, DMP8, EMP8, SSOP14


















NJM2374AD NJM2374AM




NJM2374AE NJM2374AV
NJM2374A
DC/DC
IC
PWM
1.5A

NJM2374AD
NJM2374AM
NJM2374AE
1.C
S
2.E
S
3.C
T
4.GND
5.IN
+
6.V
+
7.S
I
8.C
D
1.C
S
2.NC
3.E
S
4.NC
5.C
T
6.NC
7.GND
8.IN
+
9.NC
10.V
+
11.NC
12.S
I
13.NC
14.C
D
NJM2374AV
1
4
3
2
8
5
6
7
1
4
3
2
5
7
6
14
11
12
13
10
8
9
NJM2374A
- 2 -
1
1.5A
ON
9:1
OSC
4
3
2
8
5
6
7
V
+
E
S
GND
PWM
R
S
Q
Vref
1.25V
2%
C
D
C
T
C
S
S
I
IN
+
Vth=300mV
Ipk Sense
PWM COMP
ERR.AMP
160

(DIP8, DMP8, EMP8: PACKAGE)

1
1.5A
ON
9:1
OSC
7
5
3
14
8
10
12
V
+
E
S
GND
PWM
R
S
Q
Vref
1.25V
2%
C
D
C
T
C
S
S
I
IN
+
Vth=300mV
Ipk Sense
PWM COMP
ERR.AMP
2
NC
4
NC
6
NC
9
NC
11
NC
13
NC
160

(SSOP14: PACKAGE)
NJM2374A
- 3 -


(Ta=25
)
V
+
40
(NJM2374AE: 48V)
V
I
SW
1.5 A
V
SW
40
(NJM2374AE: 48V)
V
V
IR
-0.3
40
(NJM2374AE: -0.3
48V)
V
P
D
(DIP8)
875
(DMP8)
750
(EMP8) 1,000
(SSOP14)
375
mW
Topr
-40
+85
Tstg
-50
+150
DMP8, EMP8
6V

-
















SSOP
0
200
400
600
800
1000
1200
25
50
75
100
Ta (
)
P
D
(mW
)
Topr=-40
+85
,Tj=
+150
NJM2374AM
NJM2374AD
NJM2374AV
NJM2374AE
NJM2374A
- 4 -
(V
+
=5V, Ta=25
)
I
CC1
C
T
=1nF, S
I
=V
+
, IN
+
V
th
, E
S
=GND
-
2.8 4.0 mA
(NJM2374AE
)
I
CC2
V
+
=48V, C
T
=1nF, S
I
=V
+
,
IN
+
V
th
, E
S
=GND
-
3.4 4.5 mA
I
chg
12
20
30
A
I
dis
110 180 300
A
V
OSC
-
0.5
-
V
P-P
I
ratio
S
I
=V
+
-
9
-
-
V
ipk
I
chg
=I
dis
250
300
350
mV
V
sat1
(C
S
=C
D
),I
SW
=0.7A
-
1.0 1.3 V
V
sat2
I
SW
=0.7A,Ic(driver)=50mA
(Forced
14)
-
0.5 0.7 V
R
bias
-
160
-
h
FE
I
SW
=0.7A,V
CE
=5.0V 35
120
-
-
I
C(Off)
V
CE
=40V (NJM2374AE: V
CE
=48V)
-
10
-
nA
V
th
1.225
1.250 1.275 V
I
IB
IN
+
=0V
-
40 400 nA






















High Voltage
Detect
Current-Limit
Active Point
OFF
ON
OSC
FF
HIGH
LOW
NJM2374A
- 5 -


(C
T
=1nF,S
I
=V
+
,IN
+
>V
th
,E
S
=GND,Ta=25
)
0
1
2
3
4
0
5
10 15 20 25 30 35 40
V
+
(V)
I
CC
(mA)
(V
+
=5V,S
I
=V
+
,Pin5=GND,Ta=25
)
1
10
100
1000
100
1000
10000
C
T
(pF)
f
OS
C
(kH
z
)
1
(V
+
=5V,C
S
=C
D
,Ta=25
)
0
0.5
1
1.5
2
0
0.5
1
1.5
2
I
C
(A)
V
sat
1
(V)
ON/OFF
(V
+
=5V,S
I
=V
+
,Pin5=GND,Ta=25
)
1
10
100
1000
100
1000
10000
C
T
(pF)
ON
/OFF
t
ON
/ t
OF
F
(
S)
t
ON
t
OFF
2
(V
+
=5V,Ic(driver)=50mA,
14,Ta=25
)
0
0.5
1
1.5
2
0
0.5
1
1.5
2
I
C
(A)
V
sat
2
(V)