V048K120T025 Datasheet, PDF (2/15 Pages) Vicor Corporation – V, I ChipTM-VTM Voltage Transformation Module

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