English
Language : 

B048X080Y24A Datasheet, PDF (2/18 Pages) Vicor Corporation – Unregulated DC-DC Converter
Not Recommended for New Designs
B048x080y24A
1.0 ABSOLUTE MAXIMUM RATINGS
The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent
damage to the device.
MIN MAX UNIT
MIN MAX UNIT
+IN to –IN . . . . . . . . . . . . . . . . . . . . . . . -1
60
V
Output current transient
VIN slew rate (operational) . . . . . . . . . -1
1
V/µs
(< = 10 ms, < = 10% DC) . . . . . . . . . . . . -3
45
A
Isolation voltage, input to output . . . .
2250 V
Output current average . . . . . . . . . . . . -2
36
A
+OUT to –OUT . . . . . . . . . . . . . . . . . . . -1
16
V
PC to –IN . . . . . . . . . . . . . . . . . . . . . . . . -0.3
20
V
TM to –IN . . . . . . . . . . . . . . . . . . . . . . . -0.3
7
V
2.0 ELECTRICAL CHARACTERISTICS
Specifications apply over all line and load conditions unless otherwise noted; Boldface specifications apply over the temperature
range of -40°C < TC < 125°C (T-Grade); All other specifications are at TC = 25ºC unless otherwise noted.
ATTRIBUTE
SYMBOL
CONDITIONS / NOTES
MIN
TYP
MAX
UNIT
POWERTRAIN
Input voltage range, continuous
Input voltage range, transient
Quiescent current
VIN to VOUT time
No load power dissipation
Inrush current peak
DC input current
Transformation ratio
Output power (average)
Output power (peak)
Output current (average)
Output current (peak)
Efficiency (ambient)
Efficiency (hot)
Efficiency (over load range)
Output resistance
Switching frequency
Output voltage ripple
Output inductance (parasitic)
Output capacitance (internal)
Output capacitance (external)
VIN_DC
VIN_TRANS
IQ
TON1
PNL
IINR_P
IIN_DC
K
POUT_AVG
POUT_PK
IOUT_AVG
IOUT_PK
hAMB
hHOT
h20%
ROUT_COLD
ROUT_AMB
ROUT_HOT
FSW
VOUT_PP
LOUT_PAR
COUT_INT
COUT_EXT
Full current or power supported, 50 ms max,
10% duty cycle max
Disabled, PC Low
VIN = 48 V, PC floating
VIN = 48 V, TC = 25ºC
VIN = 48 V
VIN = 38 V to 55 V, TC = 25ºC
VIN = 38 V to 55 V
Worse case of: VIN = 55 V, COUT = 2300 µF,
RLOAD = 215 mΩ
At POUT = 240 W
K = VOUT / VIN, at no load
10 ms max, POUT_AVG ≤ 240 W
10 ms max, IOUT_AVG ≤ 36 A
VIN = 48 V, IOUT = 30 A; Tc = 25°C
VIN = 38 V to 55 V, IOUT = 30 A; Tc = 25°C
VIN = 48 V, IOUT = 15 A; Tc = 25°C
VIN = 48 V, IOUT = 30 A; Tc = 125°C
6 A < IOUT < 30 A
IOUT = 30 A, Tc = -40°C
IOUT = 30 A, Tc = 25°C
IOUT = 30 A, TC = 125°C
COUT = 0 F, IOUT = 30 A, VIN = 48 V,
20 MHz BW, Section 10
Frequency up to 30 MHz,
Simulated J-lead model
Effective value at 8 VOUT
38
55
V
38
55
V
1.9
2.8
mA
350
500
650
ms
4.0
5.5
3.0
10.0
W
7.0
11.0
13.3
20
A
0
A
1/6
V/ V
240
W
360
W
36
A
45
A
94.2
95.4
92.0
%
94.0
95.3
94.8
95.2
%
91.0
%
3.0
5.6
8.0
mΩ
5.0
7.4
10.0
mΩ
5.0
8.2
12.0
mΩ
1.49
1.52
1.57
MHz
160
230
mV
600
pH
45
µF
0
2300
µF
BCM® Bus Converter
Page 2 of 18
Rev 1.1
08/2014
vicorpower.com
800 927.9474