HBC48T25120 Datasheet, PDF (13/16 Pages) Power-One – HBC48T25120 DC-DC Converter Data Sheet

HBC48T25120 DC-DC Converter Data Sheet
36-75 VDC Input; 12 VDC @ 25 A Output
Input Reflected Ripple Current
Fig. 13: Input reflected ripple current, ic (200
mA/div.), measured at input terminals at full rated
load current and Vin = 48 V. Refer to Fig. 12 for test
setup. Time scale: 1 µs/div.
Fig. 14: Input reflected ripple current, is (10 mA/div.),
measured through 10 µH at the source at full rated
load current and Vin = 48 V. Refer to Fig. 12 for test
setup. Time scale: 1 µs/div.
Output Current Limiting
14
12
10
8
6
4
2
0
0
5
10
15
20
25
30
35
Iout [A]
Fig. 15: Output voltage vs. load current showing
current limit point and converter shutdown point.
Input voltage has almost no effect on current limit
characteristic.
Fig. 16: Load current (top trace, 20 A/div., 50
ms/div.) into a 10 mΩ short circuit during restart, at
Vin = 48 V. Bottom trace (20 A/div., 2 ms/div.) is an
expansion of the on-time portion of the top trace.
MCD10127 Rev. 1.1, 09-Jun-10
Page 13 of 16
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