V048K020T080 Datasheet, PDF (2/15 Pages) Vicor Corporation – VI Chip - VTM Voltage Transformation Module

Specifications
INPUT (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Input voltage range
Input dV/dt
Input overvoltage turn-on
Input overvoltage turn-off
Input current
Input reflected ripple current
No load power dissipation
Internal input capacitance
Internal input inductance
Min
Typ
Max
Unit
Note
26
48
55
Vdc
Operable down to zero V with external bias voltage
1
V/µs
56.0
Vdc
59.5
Vdc
3.7
Adc
170
mA p-p
Using test circuit in Fig.16; See Fig.1
2.50
3.15
W
4
µF
20
nH
P ^{R E L I M I N A RY OUTPUT (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)}
Parameter
Rated DC current
Peak repetitive current
DC current limit
Current share accuracy
Efficiency
Half load
Full load
Internal output inductance
Internal output capacitance
Load capacitance
Output overvoltage setpoint
Min
Typ
Max
Unit
0
80
Adc
120
A
82
99
112
Adc
5
10
%
94.0
94.2
%
93.0
93.2
%
0.8
nH
306
µF
56,300
µF
2.33
Vdc
Note
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
See Parallel Operation on page 10
See Fig.3, 2 Vout
See Fig.3, 2 Vout
Effective value
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
mΩ
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
Vicor Corporation
Tel: [phone]
vicorpower.com
V•I Chip Voltage Transformation Module V048K020T080 Rev. 1.2
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