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LD5530GL Fiches technique(PDF) 13 Page - Leadtrend Technology

No de pièce LD5530GL
Description  Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
PDF  16 Pages
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Fabricant  LEADTREND [Leadtrend Technology]
Site Internet  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD5530GL Fiches technique(HTML) 13 Page - Leadtrend Technology

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LD5530
13
Leadtrend Technology Corporation
LD5530-DS-00
Oct. 2013
saturation; it would cause damage for acting beyond the
maximum safety operating area. It
’s necessary to check
the characteristic of MOSFET.
VDS
ID
Ohmic Region
Saturation Region
VGS1
VGS2
VGS3
VGS4
VGS5
VGS5 > VGS4 > VGS3 > VGS2 > VGS1
Cut-off region
Fig. 22
Output Short Circuit Protection (OSCP)
–
Auto Recovery
The OSCP function is to prevent the damage from output
short circuit. Once the output is shorted, Vo and VCC drop
immediately. And according to the close loop control,
COMP voltage will pull high in the meanwhile. If the
VCOMP pulls high to over 4.5 V for over 15 ms and Vcc
drops below 9 V. At this time, the OSCP protection will be
triggered and turn off the gate driving.



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