APR34309/A

Document number: DS37412 Rev. 3 - 2

8 of 12

www.diodes.com

June 2015

© Diodes Incorporated

APR34309/A

A Product Line of

Diodes Incorporated

VFB

tSAMPLE

SR Operating

SR Turnoff,

Bodydiode operating

tBODYDIODE

tONS

Operation Description (Cont.)

To ensure stable operating of system, it must be met:

tBODYDIODE<tONS*(1- tSAMPLE)

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

APR34309X XX XX - XX

Packing

Package

TR : Tape & Reel

MP: SO-8EP

G1 : Green

Product Name

RoHS/Green

Product Version

A: APR34309A

Blank: APR34309

Package

Temperature Range

Part Number

Marking ID

Packing

SO-8EP

-40 to +85

C

APR34309MPTR-G1

34309MP-G1

4000/Tape & Reel

SO-8EP

-40 to +85

C

APR34309AMPTR-G1

34309AMP-G1

4000/Tape & Reel