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V048F120T025 Datasheet

  • V048F120T025

  • VI Chip - PRM-AL Pre-Regulator Module

  • 408.05KB

  • 14頁

  • VICOR   VICOR

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PRELIMINARY
Electrical Specifications
Input Specs
(Conditions are at 48 Vin, 48 Vf, full load, and 25擄C ambient unless otherwise specified)
Parameter
Input voltage range
Input dV/dt
Input undervoltage turn-on
Input undervoltage turn-off
Input overvoltage turn-on
Input overvoltage turn-off
Input quiescent current
Input current
Input reflected ripple current
No load power dissipation
Internal input capacitance
Recommended external input capacitance
30.5
75.8
33.8
31.8
77.3
78.8
0.5
5.2
580
3.0
5
100
81.0
1
Min
36
Typ
48
Max
75
1
35.3
Unit
Vdc
V/碌s
Vdc
Vdc
Vdc
Vdc
mA
Adc
mA p-p
W
碌F
碌F
Ceramic
See Figure 5 for input filter circuit.
Source impedance dependent
See Figures 4 & 5
PC low
Note
V鈥 Chip Pre-Regulator Module
Input Waveforms
Figure 2
鈥?Vf and PC response from power up
Figure 3
鈥?Vf turn-on waveform with inrush current 鈥?PC enabled at
full load, 48 Vin
Reflected
Ripple
Measurement
VC
PC
TM
IL
NC
PR
10 A
+IN
100
渭F
Al-Electrolytic
+In
PRM-AL
VH
SC
SG
OS
NC
CD
2.37 k惟
+Out
+ OUT
鈥揑N
鈥揑n
鈥揙ut
鈥?OUT
Figure 4
鈥?Input reflected ripple current at full load and 48 Vin
Figure 5
鈥?Input filter capacitor recommendation
vicorpower.com
800-735-6200
V鈥 Chip Pre-Regulator Module
P048F048T24AL
Rev. 1.7
Page 3 of 14

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