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參數(shù)資料
| 型號(hào)： | PQ40050QGA20NNS-G |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-8 |
| 文件頁(yè)數(shù)： | 13/14頁(yè) |
| 文件大?。?/td> | 633K |
| 代理商： | PQ40050QGA20NNS-G |
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Product # PQ40050QGA20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QG350D Rev. A
11/8/04
Page 8
Input:
Output:
Current:
P
Package:
ackage:
18-75 V
5.0 V
20 A
Quarter-brick
T
Technical S
echnical Specification
pecification
Figure 17: Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figure 18), Input Reflected Ripple Current
(Figure 19) and Output Voltage Ripple (Figure 20).
10 H
source
impedance
DC/DC
Converter
See Fig. 19
See Fig. 18
See Fig. 20
1 F
ceramic
capacitor
10 F,
100m
ESR
tantalum
capacitor
47 F,
<1 ESR
electrolytic
capacitor
VSOURCE
i
S
i
C
VOUT
Figure 18: Input Terminal Ripple Current, ic, at full rated output cur-
rent and nominal input voltage with 10H source impedance and 47F
electrolytic capacitor (200 mA/div). See Figure 17.
Figure 19: Input reflected ripple current, is, through a 10 H source
inductor at nominal input voltage and rated load current (20 mA/div).
See Figure 17.
Figure 20: Output voltage ripple at nominal input voltage and rated
load current (20 mV/div). Load capacitance: 1F ceramic capacitor
and 10F tantalum capacitor. Bandwidth: 20 MHz. See Figure 17.
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0
5
10
15
20
25
30
Load Current (A)
Output
Voltage
(V)
24 V
48 V
75 V
Figure 21: Output voltage vs. load current showing typical current limit
curves and converter shutdown points.
Figure 22: Load current (20A/div) as a function of time when the con-
verter attempts to turn on into a 10 m
short circuit. Top trace
(10ms/div) is an expansion of the on-time portion of the bottom trace.
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