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參數(shù)資料
| 型號(hào)： | PQ48050HMA25PYS |
| 廠商： | SYNQOR INC |
| 元件分類(lèi)： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁(yè)數(shù)： | 12/14頁(yè) |
| 文件大?。?/td> | 787K |
| 代理商： | PQ48050HMA25PYS |
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Figure 13: Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figure 14), Input Reflected Ripple Current
(Figure 15) and Output Voltage Ripple (Figure 16).
Product # PQ48050HMA25
Phone 1-888-567-9596
Doc.# 005-2HM450B Rev. C
4/9/03
Page 7
Figure 14: Input Terminal Ripple Current, ic, at full rated output cur-
rent and nominal input voltage with 10H source impedance and 47F
electrolytic capacitor (100 mA/div). (See Figure 13)
Figure 15: Input reflected ripple current, is, through a 10 H source
inductor at nominal input voltage and rated load current (5 mA/div).
(See Figure 13)
Figure 16: Output voltage ripple at nominal input voltage and rated
load current (20 mV/div). Load capacitance: 1F ceramic capacitor
and 15F tantalum capacitor. Bandwidth: 20 MHz. (See Figure 13)
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0
4
8
12
16
20
24
28
32
Load Current (A)
Output
Voltage
(V)
36 V
48 V
75 V
Figure 17: Output voltage vs. load current showing typical current limit
curves and converter shutdown points.
Figure 18: Load current (10A/div) as a function of time when the con-
verter attempts to turn on into a 1 m
short circuit. Top trace
(2ms/div) is an expansion of the on-time portion of the bottom trace.
Half
Brick
Performance Curves
48Vin 5.0Vout 25A
10 H
source
impedance
DC/DC
Converter
Figure 15
Figure 14
Figure 16
1 F
ceramic
capacitor
15 F,
450m
ESR
tantalum
capacitor
47 F,
<1
ESR
electrolytic
capacitor
VSOURCE
i
S
i
C
VOUT
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