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V048K020T080 Datasheet(PDF) 2 Page - Vicor Corporation

Part No. V048K020T080
Description  VI Chip - VTM Voltage Transformation Module
Download  15 Pages
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Maker  VICOR [Vicor Corporation]
Homepage  http://www.vicorpower.com
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V048K020T080 Datasheet(HTML) 2 Page - Vicor Corporation

 
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Vicor Corporation
Tel: 800-735-6200
V•I Chip Voltage Transformation Module
V048K020T080
Rev. 1.2
Page 2 of 15
vicorpower.com
PRELIMIN
ARY
Specifications
Parameter
Min
Typ
Max
Unit
Note
Input voltage range
26
48
55
Vdc
Operable down to zero V with external bias voltage
Input dV/dt
1
V/µs
Input overvoltage turn-on
56.0
Vdc
Input overvoltage turn-off
59.5
Vdc
Input current
3.7
Adc
Input reflected ripple current
170
mA p-p
Using test circuit in Fig.16; See Fig.1
No load power dissipation
2.50
3.15
W
Internal input capacitance
4
µF
Internal input inductance
20
nH
INPUT (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Min
Typ
Max
Unit
Note
Rated DC current
0
80
Adc
Peak repetitive current
120
A
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
DC current limit
82
99
112
Adc
Current share accuracy
5
10
%
See Parallel Operation on page 10
Efficiency
Half load
94.0
94.2
%
See Fig.3, 2 Vout
Full load
93.0
93.2
%
See Fig.3, 2 Vout
Internal output inductance
0.8
nH
Internal output capacitance
306
µF
Effective value
Load capacitance
56,300
µF
Output overvoltage setpoint
2.33
Vdc
Output ripple voltage
No external bypass
53
65
mV
See Figs.2 and 5
100 µF bypass capacitor
2
mV
See Fig.6
Effective switching frequency
2.52
2.65
2.78
MHz
Fixed, 1.33 MHz per phase
Line regulation
K
0.0413
1/24
0.0421
VOUT = K•VIN at no load
Load regulation
ROUT
1.3
1.5
m
See Fig.19
Transient response
Voltage overshoot
20
mV
80 A load step with 100 µF CIN; See Figs.7 and 8
Response time
200
ns
See Figs.7 and 8
Recovery time
1
µs
See Figs.7 and 8
OUTPUT (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)


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