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参数资料
| 型号： | VRPF-20A1A0G |
| 厂商： | Bel Fuse Inc |
| 文件页数： | 3/9页 |
| 文件大小： | 0K |
| 描述： | CONV DC/DC .9-5.0V 20A 100W |
| 标准包装： | 30 |
| 系列： | xRPF-20A1A0 |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 10.8V |
| 电压 - 输入（最大）： | 13.2V |
| Voltage - Output 1： | 0.9 ~ 5 V |
| 电流 - 输出（最大）： | 20A |
| 电源（瓦） - 制造商系列： | 100W |
| 特点： | 具有远程开/关功能和 UVLO |
| 安装类型： | 通孔 |
| 封装/外壳： | 11-SIP 模块 |
| 尺寸/尺寸： | 1.20" L x 0.46" W x 1.10" H（30.5mm x 11.6mm x 25.0mm） |
| 包装： | 托盘 |
| 工作温度： | 0°C ~ 80°C |
| 效率： | 92% |
| 电源（瓦特）- 最大： | 100W |
| 其它名称： | VRPF-20A1A0 |
NON-ISOLATED DC/DC CONVERTERS
12 Vdc Input
0.9 Vdc - 5.0 Vdc/20 A Output
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency (Current Source)
Vo=5.0 V
Vo=3.3 V
89%
86%
92%
89%
-
-
Vo=2.5 V
Vo=0.9 V
83%
65%
86%
69%
-
-
Measured at Vin=12 V, full load.
Efficiency (Current Sink)
Switching Frequency
Vo=2.5 V
Vo=0.9 V
79%
60%
240 kHz
82%
63%
275 kHz
-
-
310 kHz
Output Voltage Trim Range
MTBF
Dimensions
Inches (L × W × H)
0.9 V
-
5,570,000 hours
1.2 x 1.1 x 0.457
5.0 V
Vo=0.9 V when the Trim pin is open.
Calculated Per Bell Core SR-332 (I O =
Nominal; T a = 25 ° C)
VRPF-20A1A0
Millimeters (L × W × H)
30.48 x 27.94 x 11.6
Dimensions
Inches (L × W × H)
1.2 x 1.1 x 0.508
0RPF-20A1A0
Millimeters (L × W × H)
30.48 x 27.94 x 12.91
Weight
-
15 g
-
Note : All specifications are typical at 25 ° C unless otherwise stated.
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit Off)
Signal High (Unit On)
-0.3 V
2.4 V
-
-
0.8 V
13.8 V
Remote On/Off pin open, unit on.
Power Good
Power Good Delay
1
-
-
8 mS
Note : All specifications are typical at 25 ° C unless otherwise stated.
1. The power good signal is an open collector output. When the output of the module reaches 90% of the
nominal set point, the power good pin is set high.
Output Trim Equations
Equation for calculating the trim resistor (in k ? ) given the desired adjusted voltage (Vadj) is shown below. The
Trim Up resistor should be connected between the Trim pin and Ground. Trim values should not be less than
280 ? .
R trim =
1 . 17
V adj ? 0 . 9
Vout
Module Trim
Rtrim
GND
Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The
Trim Up voltage should be connected between the Trim pin and Ground.
Vout
Rt =
Rs × ( 1 . 3 Vt ? 1 . 17 )
1 . 17 ? Rs × ( V adj ? 0 . 9 )
Module
Trim
GND
Rs
Rt
Vt
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? www.belfuse.com
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