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| 型號： | 65PWB31 |
| 廠商： | NEC Corp. |
| 英文描述： | DOD-PD-0734 (2nd edition) |
| 中文描述： | 國防部光探測器- 0734（第二版） |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 161K |
| 代理商： | 65PWB31 |
65PWB31
DATA SHEET DOD-PD-0734 (2nd edition)
5
2.3 ELECTRICAL CHARACTERISTICS
(Ta=25
°
C)
Parameter
Symbol
min.
typ.
max.
Unit
Remarks
Power supply voltage
VDDB
4.75
5.0
5.25
V
Note1, Note2
Power supply current
IDDB
-
900
1,000
mA
VDDB = 5.0V Note2
(at the maximum
luminance control)
Open lamp voltage
VO
900
-
-
Vrms
Ta = - 10 to + 65
°
C
Output voltage
Lamp voltage
(at steady state)
VBLH
-
375
-
Vrms
-
Output current
Lamp current
(per lamp)
IBL
-
5.0
-
mArms
-
Oscillation frequency
FO
51
55
59
kHz
Luminance control frequency
FB
250
270
290
Hz
-
Note1: When designing of the power supply, take the measures for the prevention of surge voltage.
Note2: The power supply lines (VDDB and GNDB) occurs large ripple voltage while luminance control
of LCD lamps. There is the possibility that the ripple voltage produces acoustic noise and signal
wave noise in audio circuit and so on. Put a capacitor (5,000 to 6,000
μ
F) between the power
source lines (VDDB and GNDB) to reduce the noise, if the noise occurred in the circuit.
2.4 FUSE
Fuse
Parameter
Type
Supplier
Rating
Fusing current
Remarks
2.0A
VDDB
11CT2A
SOC Corporation
72V
4.0A
Note1
Note1: The power supply capacity should be more than the fusing current. If the power capacity is less
than the fusing current, the fuse may not blow for a short time, and then nasty smell, smoking and
so on may occur.
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