Not Recommended for New Designs
B048x096y24A
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
-1
MAX
60
UNIT
MIN
MAX
UNIT
+IN to –IN . . . . . . . . . . . . . . . . . . . . . . .
VIN slew rate (operational) . . . . . . . . .
Isolation voltage, input to output . . . .
+OUT to –OUT . . . . . . . . . . . . . . . . . . .
V
Output current transient
(< = 10 ms, < = 10% DC) . . . . . . . . . . . .
-3
-2
38
30
20
7
A
A
V
V
-1
1
V/
µs
V
Output current average . . . . . . . . . . . .
2250
16
PC to –IN . . . . . . . . . . . . . . . . . . . . . . . . -0.3
TM to –IN . . . . . . . . . . . . . . . . . . . . . . . -0.3
-1
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 < 100°C (T-Grade); All other specifications are at TC = 25ºC unless otherwise noted.
ATTRIBUTE
POWERTRAIN
SYMBOL
CONDITIONS / NOTES
MIN
TYP
MAX
UNIT
Input voltage range, continuous
Input voltage range, transient
VIN_DC
38
38
55
55
V
V
Full current or power supported, 50 ms max,
10% duty cycle max
VIN_TRANS
Quiescent current
VIN to VOUT time
IQ
Disabled, PC Low
2.0
560
4.5
3.0
750
6.0
11.0
8
mA
ms
TON1
VIN = 48 V, PC floating
VIN = 48 V, TC = 25ºC
VIN = 48 V
500
3.5
No load power dissipation
Inrush current peak
PNL
W
VIN = 38 V to 55 V, TC = 25ºC
VIN = 38 V to 55 V
12
Worse case of: VIN = 55 V, COUT = 1600 µF,
IINR_P
12
19
A
RLOAD = 376 mΩ
At POUT= 240 W
DC input current
IIN_DC
K
6.6
A
V/V
W
W
A
Transformation ratio
Output power (average)
Output power (peak)
Output current (average)
Output current (peak)
K = VOUT/VIN, at no load
1/5
POUT_AVG
POUT_PK
IOUT_AVG
IOUT_PK
240
240
25
10 ms max, POUT_AVG ≤ 240 W
10 ms max, IOUT_AVG ≤ 25 A
38
A
VIN = 48 V, IOUT = 25 A; T = 25°C
c
94.5
92.0
93.0
95.0
82.0
3.5
95.8
Efficiency (ambient)
hAMB
VIN = 38 V to 55 V, IOUT = 25 A; T = 25°C
c
%
VIN = 48 V, IOUT = 13 A; T = 25°C
c
94.9
95.8
Efficiency (hot)
hHOT
h20%
VIN = 48 V, IOUT = 25 A; T = 100°C
c
%
%
Efficiency (over load range)
5 A < IOUT < 25 A
ROUT_COLD
ROUT_AMB
ROUT_HOT
FSW
IOUT = 25 A, T = -40°C
c
5.4
7.8
10.0
12.0
14.0
1.60
mΩ
mΩ
mΩ
MHz
Output resistance
IOUT = 25 A, T = 25°C
c
5.0
IOUT = 25 A, TC = 100°C
6.5
9.2
Switching frequency
Output voltage ripple
1.50
1.55
COUT = 0 F, IOUT = 25 A, VIN = 48 V,
20 MHz BW, Section 10
VOUT_PP
200
250
mV
pH
Frequency up to 30 MHz,
Simulated J-lead model
Output inductance (parasitic)
LOUT_PAR
COUT_INT
COUT_EXT
600
45
Output capacitance (internal)
Output capacitance (external)
Effective value at 9.6 VOUT
µF
µF
0
1600
BCM® Bus Converter
Page 2 of 18
Rev 1.1
vicorpower.com
800 927.9474
08/2014
VICOR [ VICOR CORPORATION ]
