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3 Electrical Performance Specifications
Table 1. UCC28250EVM-501 Electrical Performance Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Characteristics
Voltage range 36 48 72 V
Maximum input current V
IN
= 36 V and I
OUT
= 23 A 2.35 A
No load input current 50 mA
Output Characteristics
Output voltage, V
OUT
Output current = 0 A 3.25 3.3 3.35 V
Output load current, I
OUT
23 A
Line regulation: input voltage = 36 V to 72 V 0.1%
Output voltage regulation
Load regulation: output current = 0 A to 23 A 0.1%
Output voltage ripple At I
OUT
= 23 A 50 mV
PP
Output over current 26 A
Systems Characteristics
Switching frequency 150
kHz
Operation frequency 300
Peak efficiency 91%
Full load efficiency 90%
Operating temperature Min 200 LFM force air flow 45 °C
3
SLUU429B–June 2010–Revised December 2010 Half-Bridge DC-to-DC Converter With Primary-Side Control
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