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3 Electrical Performance Specifications
Table 1. UCC28250EVM-564 Electrical Performance Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Characteristics
Voltage range 36 48 75 V
Maximum input current V
IN
= 36 V and I
OUT
= 30 A 3.5 A
No load input current V
IN
= 75 V 90 mA
Output Characteristics
Output voltage, V
OUT
Output current = 0 A 3.25 3.3 3.35 V
Output load current, I
OUT
30 A
Output voltage regulation Line regulation: input voltage = 36 V to 75 V 0.15%
Load regulation: output current = 0 A to 23 A 0.15%
Output voltage ripple At I
OUT
= 30 A 50 mVpp
Output over current 35 A
Systems Characteristics
Switching frequency 200
kHz
Operation frequency 400
Peak efficiency 91%
Full load efficiency 90%
Operating temperature Min 200 LFM force air flow 45 °C
3
SLUU441A– September 2010– Revised October 2011 Half-Bridge DC-to-DC Converter —With Secondary-Side Control
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