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3 Performance Specifications
Table 1. UCD3138LLCEVM-028 Performance Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Characteristics
Voltage operation range 350 400 V
DC
Input UVLO On 325
Input UVLO Off 310
Input current Input = 350 V
DC
, full load = 29 A 1.2 A
Input current Input = 380 V
DC
, full load = 29 A 1.1
Input current Input = 400 V
DC
, full load = 29 A 1.0
Output Characteristics
Output voltage, V
OUT
No load to full load 12 VDC
Output load current, I
OUT
350 V
DC
to 400 V
DC
29 A
Output voltage ripple 380 V
DC
and full load = 29 A 200 mVpp
Output over current Operation 10s then latch-off shutdown 30 A
Systems Characteristics
Switching frequency Resonant mode 35 150 kHz
PWM Mode 150
Peak efficiency 380 V
DC
, full load = 29 A 93.5%
Full-load efficiency 380 V
DC
, load = 20 A 94.0%
Operating temperature Natural convection 25 ºC
Firmware
Device ID (version) UCD3100ISO1 | 0.0.44.0000 | 120517
Filename UCD3138LLCEVM_028_0_0_44_120517.x0
5
SLUU979A–August 2012–Revised July 2013 Digitally Controlled LLC Resonant Half-Bridge DC-DC Converter
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