XRSB-40U_SERIES Datasheet, PDF (4/15 Pages) Bel Fuse Inc. – ISOLATED DC/DC CONVERTERS

ISOLATED DC/DC CONVERTERS
24 Vdc/48 Vdc Input 1.2 Vdc - 12 Vdc / 18 A - 3.5 A Outputs, 1/16 Brick
Output Specifications (continued)
Parameter
Min
Typ
Max
Notes
Transient Response
25% ~ 50%
Overshoot
-
Max Load
50% ~ 25%
Settling Time
Overshoot
Vo=1.2 V
-
-
Max Load
Settling Time
-
25% ~ 50%
Overshoot
-
Max Load
Settling Time
Vo=1.5 -1.8 V
-
50% ~ 25%
Overshoot
-
Max Load
Settling Time
-
25% ~ 50%
Overshoot
-
Max Load
50% ~ 25%
Settling Time
Overshoot
Vo=2.5 -3.3 V
-
-
Max Load
Settling Time
-
25% ~ 50%
Overshoot
-
Max Load
50% ~ 25%
Settling Time
Overshoot
Vo=5.0 V
-
-
Max Load
Settling Time
-
25% ~ 50%
Overshoot
-
Max Load
50% ~ 25%
Settling Time
Overshoot
Vo=12 V
-
-
Max Load
Settling Time
-
60 mV
80 uS
60 mV
80 uS
90 mV
80 uS
90 mV
80 uS
180 mV
80 uS
180 mV
80 uS
250 mV
100 uS
250 mV
100 uS
400 mV
150 uS
400 mV
150 uS
110 mV
150 uS
110 mV
150 uS
180 mV
150 uS
180 mV
150 uS
250 mV
150 uS
250 mV
150 uS
350 mV
200 uS
350 mV
200 uS
650 mV
300 uS
650 mV
300 uS
Test conditions: di/dt
= 0.1 A/uS, Vin=48 V,
with a 1 uF ceramic
capacioor and a Min
Capacitance of
Tantalum capacitor at
the output
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
General Specifications
Parameter
Efficiency
Vo=1.2 V
Vo=1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=5.0 V
Vo=12 V
Switching Frequency
Vo=1.2 V -12 V
Vo=1.8 V
Isolation Capacitance
Over Temperature Protection
Output Voltage Trim Range
Over Voltage Protection
Min
78%
79%
81%
83%
85%
85%
83%
450 kHz
500 kHz
-
-
90% Vo
-
Typ
82%
84%
85%
86%
87.5%
87%
85%
500 kHz
550 kHz
3900 pF
125 °C
-
130% Vo
Max
-
-
-
-
-
-
550 kHz
600 kHz
-
-
110% Vo
160% Vo
MTBF
TBD
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
1.30 x 0.90 x 0.493
33.02 x 22.86 x 12.53
1.30 x 0.90 x 0.507
33.02 x 22.86 x 12.89
Weight
-
14 g
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Notes
Vin=48 V, full load
Test conditions: Vin=48 V, full load and
short the feedback optocoupler.
Calculated Per Bell Core SR-332 (IO =
Nominal; Ta = 25 °C)
SRSB-40Uxxx
0RSB-40Uxxx
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com