SUPLET
®
Technical Specification
LDGH700-48S50CGS Series
36Vdc to 75Vdc Input；50Vdc / 14A Output
Document No.SL81B95.A Rev. 1.01 Page 1 of 18
RoHS Compliant Features
Applications
Distributed Power Architectures
Wireless Networks
RF amplifier
Broadband/CATV amplifier
Options
Remote On/Off logic
Trim logic
Description
LDGH700-48S50CGS series are half-brick DC/DC converters that provide high efficiency single output. They can operate
from 36Vdc to 75Vdc input and 50V/14A output. The output can be trimmed from (25Vdc~57.6Vdc) of normal output voltage.
The remote control option is positive logic. The converter turns on when the REM pin is at logic high and turns off when it at
logic low, both are referenced to -Vin. The converter is on when the REM pin is left open. The output voltage trim option is
positive. The output voltage will increase when the TRIM pin connected to +S pin and decrease when it connected to -S pin.
The output voltage will increase when the TRIM pin connected to +S pin and decrease when it connected to -S pin.
Compliance with RoHS10 EU Directive 2011/65/EU &
2015/863/EU
Delivers up to 14A output current
High efficiency, typ.94% at 48Vin half load
Low output ripple and noise
Exceptional thermal performance
Industry standard "Half-brick" footprint
Fixed switching frequency (270 kHz typical)
Remote Sense
Input under voltage lockout
Output over voltage protection
Over temperature protection
Output over current protection
Short circuit protection
Adjustable output voltage (25Vdc~57.6Vdc)
Meets the voltage and current requirements for ETSI 300-
132-2 and complies with and licensed for Basic Insulation
rating per IEC60950-1
Document No. SL81B95.A01 Rev.1.01 Page 2 of 18
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress
ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the
operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the
device reliability.
Parameter Units
Specifications
Notes & conditions
Min. Max.
Input Voltage Vdc
0 80 Continuous
0 100 Transient (100ms)
Base Plate Operating
Temperature
℃ -40 100
Ambient Temperature ℃ -40 85
Storage Temperature ℃ -55 125
Operating Humidity RH(%) - 90 Non-condensing
Storage Humidity RH(%) - 90 Non-condensing
Operating Altitude m 0 3000
Storage Altitude m 0 3000
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and normal temperature
conditions
. Additional Cin=470uF capacitor, Cout=1000uF capacitor with low ESR.
Input Characteristics
Parameter Units
Specifications
Notes & conditions
Min. Typ. Max.
Operating Input Voltage Vdc 36 48 75
Converter guaranteed whole
specification at input voltage range of
35 ~ 75V
Maximum Input Current A - - 22.5
100% load
Vin=36V