Specifications
MountingThrough Hole
Nominal Input Voltage (VDC)300
Input Voltage Range (VDC)200 - 380
Dual Output Voltage Per Output (VDC)12
Output Min. Current per Output (A)0.313
Output Max Current per Output (A)3.125
Max Power per Output (W)37.5
Max. Line Regulation Vin Min to Vin Nom (%)0.75
Max. Line Regulation Vin Nom to Vin Max (%)0.75
Max. Load Regulation 10% to 50% (%)1
Max. Load Regulation 50% to 100% (%)1
Efficiency @ Full Load Typical (%)84
Output Voltage Ripple (Full Load) 1-1MHz BW (Vp-p)0.05
Full Load Output Voltage Tolerance (±%)1
Baseplate Operating Temperature Range (°C)-55 to +85
Baseplate Storage Temperature Range (°C)-55 to +105
CoolingConduction
Dimensions - L x W x H (in)2.4 x 2.3 x 0.5
Weight (grams)135
CaseAluminum baseplate and Glass Reinforced Polymer
PottingVacuum Impregnated Epoxy
Isolation Voltage - Input/Output (VDC)4242
Isolation Voltage - Input/baseplate (VDC)2121
Isolation Voltage - Output/baseplate (VDC)1000
Operating Frequency (kHz)100
Short Circuit ProtectionHiccup mode, self-recovery
Input Under Voltage ProtectionYes
Output Voltage ProtectionYes
Overtemperature ProtectionYes
Control FeatureYes
Trim Feature (%)-5 to +5
Compatible Heat SinkLCH, LCV
Compatible Thermal InterfaceLTI
Description
The LF/LM series are isolated DC-DC converters with a wide selection of input voltage ranges from 18V to 380V in a compact half brick size foot print – 2.4″ x 2.3″. These modules have trim capability and shutdown features. Protections include input overvoltage, output short-circuit, output overvoltage and over temperature.
The unique case has integrated side heat sink for better thermal dissipation but is capable of conduction cooling through the baseplate or additional top mounted heat sink.