SRDB-04HX20 Datasheet, PDF (1/5 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTER 9.0 V - 32 V Input 10 V - 12 V/3.5 A Output

NON-ISOLATED DC/DC CONVERTER
9.0 V - 32 V Input
10 V - 12 V/3.5 A Output
SRDB-04HX20
RoHS Compliant
• Non-Isolated
• Fixed Frequency (340 kHz)
• Over Current Protection
• SCP
• Remote Sense
• Low Profile Package (8.5mm)
• Remote On/Off (Active Low)
Description
The SRDB-04HX20 is part of the low cost non-isolated dc/dc converter. The module uses a DIP package for
ease of layout and space savings, with a low profile of 8.5 mm. The output is closely regulated and the efficiency
of 12 V is typically 86% at full load. Features include remote sense, over current protection and remote on/off.
Part Selection
Output
Voltage
Input
Voltage
10 V - 12 V 9.0 V - 32 V
Max. Output
Current
3.5 A
Max. Output
Power
42 W
Typical
Efficiency
86%
Model Number
SRDB-04HX20
Note: Add “R” suffix at the end of the model number to indicate “Reel Packaging”, and “G” for “Tray
Packaging”.
Absolute Maximum Ratings
Parameter
Min
Typ
Input Voltage (continuous)
-0.3 V
-
Output Enable Voltage
-0.3 V
-
Ambient Temperature
-40 °C
-
Storage Temperature
-55 °C
-
Max
36 V
12 V
85 °C
125 °C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (Full load)
Input Current (No load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(rms)
I²t Inrush Current Transient
Turn-on Voltage Threshold
Min
Typ
9V
20 V
Max
32 V
Notes
-
-
5.6 A
-
50 mA
100 mA
-
1 mA
3 mA
Tested with simulated source
-
500 mA
750 mA _{impedance of 500 nH, 5 Hz to 20 MHz;}
and two 100 uF/50 V electrolytic
-
170 mA
250 mA ^{capacitors and a 3.3 uF/50 V ceramic}
capacitor at the input.
-
0.05 A²s
0.1 A²s
-
8.5 V
9.0 V
Note: All specifications are typical at 25 °C unless otherwise stated.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com