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参数资料
| 型号： | SQL48T20033-PDBB |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封装： | ONE-EIGHTH BRICK PACKAGE-8 |
| 文件页数： | 3/14页 |
| 文件大小： | 773K |
| 代理商： | SQL48T20033-PDBB |
Rev 0.2, 3-Mar-11
www.power-one.com
Page 11 of 14
SQL48T20033 DC-DC Converter
36-75 VDC Input; 3.3 VDC @ 20A Output
Preliminary Data Sheet
Figure 11. Output voltage response to load current step
change (10A
– 15A – 10A) at Vin = 48 V.
Top trace: output voltage (50mV/div.)
Bottom: load current (5 A/div.).
Current slew rate: 0.1 A/s. Time scale: 200 s /div.
Co = 10F tantalum + 1F ceramic
Figure 12. Output voltage response to load current step
change (10A
– 15A – 10A) at Vin = 48 V.
Top trace: output voltage (50mV/div.)
Bottom: load current (5 A/div.).
Current slew rate: 1 A/s. Time scale: 200 s /div.
Co = 470F POS + 1F ceramic
Figure 13.
Output voltage ripple (20 mV/div.) at full rated
load current into a resistive load with Co = 10F
tantalum + 1F ceramic and Vin = 48V. Time
scale: 1s/div.
Figure 14.
Input
reflected-ripple
current,
is (10 mA/div.),
measured through 10 H at the source at full rated
load current and Vin = 48 V. Refer to Fig. J for test
setup. Time scale: 1 s/div.
Figure 15.
Input reflected ripple-current,
ic (100 mA/div.),
measured at input terminals at full rated load
current and Vin = 48 V. Refer to Fig. J for test setup.
Time scale: 1 s/div.
Figure 16.
Load current (top trace, 20 A/div., 100 ms/div.) into
a
10
m
short
circuit
during
restart,
at
Vin = 48 V. Bottom trace (20 A/div., 5 ms/div.) is an
expansion of the on-time portion of the top trace.
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