ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input 8.5 Vdc /5.9 A Output
Input Specifications (continued)
Parameter
Min
33 V
31 V
76 V
Typ
34 V
32 V
78 V
Max
35 V
33 V
80 V
Notes
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Input Over Voltage Lockout
Note: All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
8.37 V
8.50 V
8.63 V
Vin=48 V, Io=50% load
Load Regulation
line Regulation
-
-
±3 mV
±5 mV
±8.5 mV
±10 mV
Regulation Over Temperature
(-40deg.C-85deg.C)
-
-
±30 mV
±50 mV
Ripple and Noise (rms)
15 mV
30 mV
0-20 MHz BW, with a 0.1 µF ceramic cap
and a 10 uF tantalum cap at the output.
Ripple and Noise (pk-pk)
Output Current Range
Output DC Current Limit
-
50 mV
85 mV
5.9 A
10 A
0 A
-
-
7.6 A
Vin=48 V , in hiccup mode
Short Circuit Surge Transient
-
3 A2s
5 A2s
Turn on Time
-
-
50 mS
85 mS
5%
Overshoot at Turn on
Output Capacitance
Transient Response
0%
-
0 uF
2200 uF
Overshoot
Settling Time
Overshoot
-
-
-
-
250 mV
250 uS
250 mV
250 uS
350 mV
300 uS
350 mV
300 uS
100% ~ 50%
Max Load
di/dt=1 A/us, Vin=48 Vdc, Ta=25 °C,
with a 0.1 µF ceramic cap and a 10 uF
tantalum cap at output.
50% ~ 100%
Max Load
Settling Time
Note: All specifications are typical at 25 °C unless otherwise stated.
General Specifications
Parameter
Min
90%
310 kHz
-
Typ
92%
Max
-
Notes
Efficiency
Measured at Vin=48 V, full load.
Switching Frequency
Isolation capacitance
330 kHz
1500 pF
350 kHz
-
The total voltage increased by trim and
remote sense should not exceed 15%Vo.
Remote Sense Compensation
-
-
10%
Output Voltage Trim Range
Over Temperature Protection
Over Voltage Protection
7 V
-
9 V
-
-
-
120 °C
10 V
11 V
Vin=48 V, full load, in Hiccup mode.
Calculated Per Bell Core SR-332
(Io=80%load, Ta = 25 °C)
MTBF
TBD
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
2.30 x 0.896 x 0.490
58.41 x 22.76 x 12.44
Weight
-
31.2 g
-
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