©
Semiconductor Components Industries, LLC, 2016
January, 2016 − Rev. 1
1
Publication Order Number:
EVBUM2350/D
NCP4305DGEVB
NCP4305 Synchronous
Rectification Evaluation
Board User's Manual
Table 1. GENERAL PARAMETERS
SMPS Type
Supply
Voltage
Reverse
Voltage
Effective
Resistance
LLC
5−35 V
40 V
0.9 m
W
Description
This evaluation board user’s manual describes a high efficiency
synchronous rectification evaluation board that can easily replace
a secondary side rectification diode in an SMPS.
The NCP4305 is used as synchronous rectification controller.
The evaluation board has very few external components and illustrates
how small and effective such a design can be.
The NCP4305 features a very precise 0 mV turn-off comparator that
supports even very low current flowing through the MOSFET even
when very low R
DSON
synchronous MOSFETs is used.
Key Features
•
Precise Turn-off Comparator
•
Wide Input Voltage Range
•
High Operation Frequency
•
Strong MOSFET Driver
•
High Efficiency
•
Adjustable Minimum On and Off Times
•
Light Load Detection Feature
•
Capable to Operate in Positive and Negative Branch
•
Small size
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EVAL BOARD USER’S MANUAL
Figure 1. NCP4305 Evaluation Board