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P048K048T24AL Datasheet

  • P048K048T24AL

  • VI Chip - PRM-AL Pre-regulator Module

  • 15頁

  • VICOR   VICOR

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PRELIMINARY
Electrical Specifications
(continued)
Output Specs
(Conditions are at 48 Vin, 48 Vf, full load, and 25擄C ambient unless otherwise specified)
Parameter
Output voltage range
Output power
Output current
DC current limit
Average short circuit current
Set point accuracy
Line regulation
Load regulation
Load regulation (at VTM output)
Current share accuracy
Efficiency
Full load
Output overvoltage set point
Output ripple voltage
No external bypass
With 10 碌F capacitor
Switching frequency
Output turn-on delay
From application of power
From PC pin high
Internal output capacitance
Factorized Bus capacitance
150
100
5
47
300
ms
碌s
碌F
碌F
See Figure 2
See Figure 3
Ceramic
Aluminum Electrolytic
1.35
1.9
0.04
1.45
2.0
0.06
1.55
%
%
MHz
Factorized Bus
Factorized Bus
Fixed frequency
56
96
59.4
%
Vdc
See Figure 7,8 & 9
鹵 1.5
0.1
0.1
1.0
5
10
0.2
0.2
Min
26
0
0
5.25
6.60
Typ
48
Max
55
240
5
7.20
0.5
Unit
Vdc
W
Adc
Adc
A
%
%
%
%
%
Low line to high line
No CD resistor
Adaptive Loop
I
L
pin floating
Auto recovery
Note
Factorized Bus voltage (Vf) set by R
OS
V鈥 Chip Pre-Regulator Module
Output Waveforms
98
96
94
Efficiency (%)
92
90
88
86
84
82
80
78
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Output Current (A)
36Vin
48Vin
75Vin
Figure 6
鈥?VTM output regulation and Vf bus during load step using
VTM with K = 1/24
Figure 7
鈥?Efficiency vs. output current at 48 Vf
vicorpower.com
800-735-6200
V鈥 Chip Pre-Regulator Module
P048K048T24AL
Rev. 1.4
Page 4 of 15

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