Electrical Specifications
V•I Chip Voltage Transformation Module
Input Specs (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Min
Typ
Max
55
Unit
Vdc
V/µs
Vdc
Vdc
Adc
mA p-p
W
Note
Input voltage range
Input dV/dt
26.0
48
Max Vin = 53 V, operating from -55°C to -40°C
1
Input overvoltage turn-on
Input overvoltage turn-off
Input current
55.0
59.5
6.7
Input reflected ripple current
No load power dissipation
Internal input capacitance
Internal input inductance
143
2.8
4.0
Using test circuit in Figure 15; See Figure 1
4.6
5
µF
nH
Output Specs (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified)
Parameter
Min
26.0
24.7
0
Typ
Max
55.0
53.8
6.3
Unit
Vdc
Vdc
Adc
Note
No load
Output voltage
Full load
Rated DC current
26.0 - 55 VIN
Max pulse width 1ms, max duty cycle 10%,
baseline power 50%
Module will shut down
See Parallel Operation on Page 9
Peak repetitive current
9.4
A
Short circuit protection set point
Current share accuracy
Efficiency
6
Adc
%
5
10
Half load
96.0
96.0
96.7
96.4
1.6
6
%
%
See Figure 3
See Figure 3
Full load
Internal output inductance
Internal output capacitance
Output overvoltage setpoint
Output ripple voltage
No external bypass
9.4 µF bypass capacitor
Effective switching frequency
Line regulation
nH
µF
Effective value
55.0
Vdc
Module will shut down
180
20
320
3.5
mVp-p
mVp-p
MHz
See Figures 2 and 5
See Figure 6
3.2
3.3
Fixed, 1.7 MHz per phase
K
0.9900
1
1.0100
210.0
VOUT = K•VIN at no load
See Figure 16
Load regulation
ROUT
188.0
mΩ
Transient response
Voltage overshoot
Response time
1.2
200
1
V
6.3 A load step with 100 µF CIN; See Figures 7 and 8
See Figures 7 and 8
ns
µs
Recovery time
See Figures 7 and 8
vicorpower.com
800-735-6200
V•I Chip Voltage Transformation Module
V048F480T006
Rev. 2.5
Page 2 of 11