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參數(shù)資料
| 型號： | VRAH-03H1800 |
| 廠商： | BEL FUSE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 5.4 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-5 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 292K |
| 代理商： | VRAH-03H1800 |
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 32 Vdc Input
1.2 Vdc - 5.0 Vdc/3 A Output
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
VO=5.0 V
VO=3.3 V
VO=2.5 V
VO=1.8 V
VO=1.5 V
Vo=1.2 V
89%
87%
85%
82%
80%
78%
92%
90%
88%
85%
83%
81%
-
Measured at Vin=12 V, full load and
Ta=25
°C
Switching Frequency
200 kHz
300 kHz
400 kHz
Output Trim Range (narrow trim)
90%Vo
-
110%Vo
MTBF
8,120,000 hours
Calculated Per Bell Core SR-332 (IO =
Nominal; Ta = 25
°C)
Dimensions (surface mount)
Inches (L × W × H)
Millimeters (L × W × H)
0.78 x 0.70 x 0.32
19.81 x 17.78 x 8.13
Dimensions (vertical)
Inches (L × W × H)
Millimeters (L × W × H)
0.70 x 0.308 x 0.65
17.78 x 7.82 x 16.51
Weight
-
5.1 g
-
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit On)
-0.3 V
-
1 V
Signal High (Unit Off)
2.8 V
-
12 V
Remote on/off pin open, unit on.
Output Trim Equations
Equations for calculating the trim resistor (in k) given the desired adjusted voltage (Vadj) and the nominal output
voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the Trim
pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the
resistors should be used for any given application.
B
V
A
R
adj
nom
trimdown
=
D
V
C
R
nom
adj
trimup
=
Vnom
A
B
C
D
5.0
61.850
29.400
11.760
14.700
3.3
53.840
61.700
17.200
40.200
2.5
9.556
15.620
4.496
10.000
1.8
3.849
13.830
3.064
10.000
1.5
3.102
14.420
3.536
10.000
1.2
1.794
10.910
3.536
6.490
Vout
Trim
GND
Rtrim-down
Module
Vout
Trim
GND
Rtrim-up
Module
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| VRAH-05E120 | 1-OUTPUT 6 W DC-DC REG PWR SUPPLY MODULE |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| VRAH-03H250 | 制造商:Bel Fuse 功能描述:Module DC-DC 1-OUT 2.5V 3A 7.5W 5-Pin |
| VRAH-03H330 | 制造商:Bel Fuse 功能描述:Module DC-DC 1-OUT 3.3V 3A 10W 5-Pin |
| VRAH-03H500 | 制造商:Bel Fuse 功能描述:Module DC-DC 1-OUT 5V 3A 15W 5-Pin |
| VRAH-03HXX0 | 制造商:Bel Fuse 功能描述:CONVERTER,TUBE,HAZMAT - Rail/Tube |
| VRAH-03HXX00 | 制造商:Bel Fuse 功能描述:ARROWHEAD - Rail/Tube |
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