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參數(shù)資料
| 型號： | PQ48018HGA40PRS |
| 廠商： | SYNQOR INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 12/14頁 |
| 文件大?。?/td> | 728K |
| 代理商： | PQ48018HGA40PRS |
Product # PQ48120HGA12
Phone 1-888-567-9596
Doc.# 005-2HG412C Rev. B
9/8/04
Page 7
Half
Brick
Performance Curves
48Vin 12Vout 12.5A
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).
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 10F tantalum capacitor. Bandwidth: 20 MHz. (See Figure 13)
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
(2.5ms/div) is an expansion of the on-time portion of the bottom trace.
10 H
source
impedance
DC/DC
Converter
See Fig. 15
See Fig. 14
See Fig. 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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