Specifications
INPUT (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Min
Typ
Max
53
1
Unit
Vdc
V/µs
Vdc
Vdc
Vdc
Vdc
mA
Note
Input voltage range
42
48
Input dV/dt
Input undervoltage turn-on
Input undervoltage turn-off
Input overvoltage turn-on
Input overvoltage turn-off
Input quiescent current
Inrush current overshoot
Input current
42
37
53
59
1.5
2.9
1.8
PC low
A
Using test circuit in Fig.22; See Fig.1
4.65
50
Adc
mA p-p
W
Input reflected ripple current
No load power dissipation
Internal input capacitance
Internal input inductance
Recommended external input capacitance
30
2.50
2
Using test circuit in Fig.22; See Fig.4
3.00
µF
20
nH
10
µF
200 nH maximum source inductance; See Fig.22
INPUT WAVEFORMS
Figure 1— Inrush transient current at full load and 48 Vin with
Figure 2— Output voltage turn-on waveform with PC enabled
PC enabled
at full load and 48 Vin
Figure 3—Output voltage turn-on waveform with input turn-on
Figure 4— Input reflected ripple current at full load and 48 Vin
at full load and 48 Vin
Vicor Corporation
Tel: 800-735-6200
vicorpower.com
V•I Chip Bus Converter
B048K120T20
Rev. 2.2
Page 2 of 16
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