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參數資料
| 型號： | PQ48120QNA25NRS |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | QUARTER-BRICK PACKAGE-8 |
| 文件頁數： | 10/13頁 |
| 文件大?。?/td> | 706K |
| 代理商： | PQ48120QNA25NRS |
Product # PQ48120QNA08
Phone 1-888-567-9596
Doc.# 005-2QN412D_C
9/04/01
Page 6
Performance Curves
48Vin 12Vout 8.3A
Quarter
Brick
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 (10 mA/div).
(See Figure 13)
Figure 16: Output voltage ripple at nominal input voltage and rated
load current (50 mV/div). Load capacitance: 1F ceramic capacitor
and 10F tantalum capacitor. Bandwidth: 20 MHz. (See Figure 13)
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).
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
0
1
2
3
4
5
6
7
8
9
10
11
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 (5A/div) as a function of time when the con-
verter attempts to turn on into a 10 m
short circuit. Top trace is an
expansion of the on-time portion of the bottom trace.
10 H
source
impedance
DC/DC
Converter
Figure 15
Figure 14
Figure 16
1 F
ceramic
capacitor
10 F,
100m
ESR
tantalum
capacitor
47 F,
<1
ESR
electrolytic
capacitor
VSOURCE
i
S
i
C
VOUT
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