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APR34309C 数据表(PDF) 10 Page - Diodes Incorporated

部件名 APR34309C
功能描述  SECONDARY SIDE SYNCHRONOUS RECTIFICATION SWITCHER
PDF  13 Pages
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制造商  DIODES [Diodes Incorporated]
网页  http://www.diodes.com
标志 DIODES - Diodes Incorporated

APR34309C 数据表(HTML) 10 Page - Diodes Incorporated

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APR34309C
Document number: DS37492 Rev. 5 - 2
10 of 13
www.diodes.com
June 2015
© Diodes Incorporated
APR34309C
A Product Line of
Diodes Incorporated
Operation Description (Cont.)
To ensure system operating stable, it must be met:
tBODYDIODE<tONS*(1- tSAMPLE)
VFB
tSAMPLE
SR Operating
SR Turnoff,
Bodydiode operating
tBODYDIODE
tONS
Figure 4. SR Turning off Timing Impact on PSR CV Sampling
Recommended Application Circuit Parameters
The two resistors R23 and R24 are used to pass ESD test. The value of R23 and R24 should be over 20
Ω and below 47Ω respectively because of
the undershoot performance. The package of R23 and R24
should be at least 0805 and there isn’t any trace under these two resistors.
CAREF is suggested to parallel with AREF resistor to keep the volt-second product threshold stable. And the recommended value of CAREF is 100nF.
The recommended value of C24 is 100nF.
Ordering Information
APR34309C XX XX - XX
Packing
Package
TR : Tape & Reel
MP: SO-8EP
G1 : Green
Product Name
RoHS/Green
Package
Temperature Range
Part Number
Marking ID
Packing
SO-8EP
-40 to +85
C
APR34309CMPTR-G1
34309CMP-G1
4000/Tape & Reel



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