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V048K120T025 Datasheet(PDF) 2 Page - Vicor Corporation

Part No. V048K120T025
Description  V, I ChipTM-VTM Voltage Transformation Module
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Maker  VICOR [Vicor Corporation]
Homepage  http://www.vicorpower.com
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V048K120T025 Datasheet(HTML) 2 Page - Vicor Corporation

 
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vicorpower.com
800-735-6200
V•I Chip Voltage Transformation Module
V048K120T025
Rev. 1.0
Page 2 of 16
V•I Chip Voltage Transformation Module
PRELIMINARY
Electrical Specifications
Parameter
Min
Typ
Max
Unit
Note
Input voltage range
26
48
55
Vdc
Operable down to zero V with VC voltage applied
Input dV/dt
1
V/µs
Input overvoltage turn-on
55
Vdc
Input overvoltage turn-off
59
Vdc
Input current
6.8
Adc
Input reflected ripple current
170
mA p-p
Using test circuit in Figure 16; See Figure 1
No load power dissipation
4.7
5.7
W
Internal input capacitance
4
µF
Internal input inductance
20
nH
Input Specs (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Min
Typ
Max
Unit
Note
Output voltage
9.5
13.7
Vdc
No load
9.2
13.4
Vdc
Full load
Rated DC current
0
25
Adc
Peak repetitive current
37.5
A
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
DC current limit
25.5
30.0
36.3
Adc
Module will shut down when current limit is reached
or exceeded
Current share accuracy
5
10
%
See Parallel Operation on Page 10
Efficiency
Half load
95.0
95.5
%
See Figure 3
Full load
95.0
96.0
%
See Figure 3
Internal output inductance
1.1
nH
Internal output capacitance
55
µF
Effective value
Load capacitance
1,000
µF
Output overvoltage setpoint
13.8
Vdc
Output ripple voltage
No external bypass
144
214
mV
See Figures 2 and 5
10 µF bypass capacitor
12.8
mV
See Figure 6
Effective switching frequency
2.5
2.8
3.2
MHz
Fixed, 1.4 MHz per phase
Line regulation
K
0.2475
1/4
0.2525
VOUT = K•VIN at no load
Load regulation
ROUT
11.7
13.9
m
See Figure 19
Transient response
Voltage overshoot
355
mV
25 A load step with 100 µF CIN; See Figures 7 and 8
Response time
200
ns
See Figures 7 and 8
Recovery time
1
µs
See Figures 7 and 8
Output Specs (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)


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