參數(shù)資料
型號: VRAH-05BT500
廠商: BEL FUSE INC
元件分類: 電源模塊
英文描述: 1-OUTPUT 6.25 W DC-DC REG PWR SUPPLY MODULE
封裝: ROHS COMPLIANT PACKAGE-5
文件頁數(shù): 2/5頁
文件大小: 146K
代理商: VRAH-05BT500
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 CONVERTER
5 Vdc Input Vref/2 / 5 A Output
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
0.99* (Vref/2) V
Vref/2
1.01* (Vref/2) V
Vin=5 V, Iout=full load.
Load Regulation
-
3 mV
6 mV
Line Regulation
-
1 mV
3 mV
Regulation Over Temperature
(-40
°C to +85 °C)
-
15 mV
20 mV
Output Current
0 A
-
5 A
Output Current Threshold
6.5 A
-
12.5 A
Short Circuit Surge Transient
-
0.04 A
2s
0.08 A
2s
Ripple and Noise (rms)
-
12 mV
20 mV
Ripple and Noise (pk-pk)
-
45 mV
90 mV
Tested at: 0-20 MHz BW;
with 1 uF ceramic capacitor
at the output
Turn On Time
-
12 mS
20 mS
Overshoot at Turn on
-
0%
3%
Output Capacitance
-
2200 uF
Notes: 1. All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
2. The modules track the transient response of the reference input. See the figure in TR data on Page 4.
3. The turn-off undershoot of the module is below 100 mV if a 220 uF aluminum cap is added at the output.
4. All tests are measured at Vref=2.5 V.
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency (source)
79%
82%
-
Measured at Vin=5V, lo=lo-max full load
Efficiency (sink)
78%
81%
-
Measured at Vin=5V, lo=lo-max full load
Switching Frequency
250 kHz
300 kHz
340 kHz
MTBF
8,841,119 hours
Calculated Per Bell Core SR-332 (IO =
4 A, Vin=5 V, Vref=2.5 V; Ta = 25
°C)
Dimensions (surface mount)
Inches (L × W × H)
Millimeters (L × W × H)
0.78 x 0.7 x 0.32
19.812 x 17.78 x 8.128
Dimensions (vertical)
Inches (L × W × H)
Millimeters (L × W × H)
0.7 x 0.308 x 0.65
17.78 x 7.82 x 16.51
Weight
-
4.7 g
-
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. All tests are
measured at Vref=2.5 V.
Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
-0.3 V
-
1.35V (Vin=4.5V)
Signal Low (Unit Off)
-0.3 V
-
1.65V (Vin=5.5V)
3.15 V(Vin=4.5V)
-
5.5 V
Signal High (Unit On)
3.85 V(Vin=5.5V)
-
5.5 V
Remote on/off pin open, unit on
Note: All tests are measured at Vref=2.5 V.
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