ISOLATED DC/DC CONVERTERS
48 Vdc Input
3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Output Specifications (continued)
Parameter
Min
Typ
Max
Notes
Transient Response
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
75 mV
150 uS
75 mV
100 mV
200 uS
100 mV
200 uS
150 mV
200 uS
150 mV
200 uS
200 mV
200 uS
200 mV
200 uS
200 mV
300 uS
200 mV
300 uS
300 mV
500 uS
300 mV
500 uS
50% ~ 75%
Max Load
Vo=3.3 V
Vo=5.0 V
Vo=12.0 V
Vo=15.0 V
Vo=24.0 V
25% ~ 50%
Max Load
150 uS
100 mV
150 uS
100 mV
150 uS
150 mV
150 uS
150 mV
150 uS
100 mV
200 uS
100 mV
200 uS
150 mV
300 uS
150 mV
300 uS
50% ~ 75%
Max Load
25% ~ 50%
Max Load
Test condition of the
transient response:
di/dt=0.1 A/us, Vin=48 V,
with a 220 uF/35 V
electrolytic capacitor at the
output.
50% ~ 75%
Max Load
25% ~ 50%
Max Load
50% ~ 75%
Max Load
25% ~ 50%
Max Load
50% ~ 75%
Max Load
Settling Time
Overshoot
Settling Time
25% ~ 50%
Max Load
Note: All specifications are typical at nominal input, full load at 25°C unless noted.
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
VO=3.3 V
VO=5.0 V
VO=12.0 V
VO=15.0 V
VO=24.0 V
85%
87%
87%
87%
86%
88%
90%
90%
90%
89%
-
-
-
-
-
Measured at Vin=48 V, IO=Io, max
Switching Frequency
Output Trim Range
I/O Isolation Voltage
Isolation Capacitance
Output Voltage Trim Range
Over Temperature Protection
Over Voltage Protection
200 kHz
90% VO
1500 V
-
90%
-
230 kHz
260 kHz
110% VO
-
-
-
1500 pF
-
-
110%
-
110 °C
VO=3.3 V
3.9 V
5.7 V
13.6 V
18.0 V
28.8 V
-
-
-
-
-
5.0 V
7.0 V
14.2 V
22.5 V
36.0 V
Test condition of Over Voltage Protection:
Vin=48 V, Io=100% load at 25 °C ambient.
VO=5.0 V
VO=12.0 V
VO=15.0 V
VO=24.0 V
Calculated Per Bell Core SR-332 (IO = 80%
load; Vin=48 V; Vo=3.3 V; Ta = 25 °C)
MTBF
2,602,427 hours
Dimensions
Inches (L × W × H)
2.0 x 1.0 x 0.438
Millimeters (L × W × H)
50.8 x 25.4 x 11.14
20 g
Weight
-
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com