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UC3837LG-AG6-R датащи(PDF) 8 Page - Unisonic Technologies

номер детали UC3837LG-AG6-R
подробное описание детали  LOW COST POWER-SAVING MODE PWM CONTROLLER
PDF  11 Pages
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производитель  UTC [Unisonic Technologies]
домашняя страница  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC3837LG-AG6-R датащи(HTML) 8 Page - Unisonic Technologies

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UC3837L
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
8 of 11
www.unisonic.com.tw
QW-R103-145.A
OPERATION DESCRIPTION (Cont.)
OVP
The OVP will shut down the switching of the power MOSFET whenever VDD>VOVP. The OVP event as followed
Fig.3.
OLP
OLP will shut down driver when VFB>VOLP for continual a blanking time. The OLP event as followed Fig.4.
OTP
OTP will shut down driver when the IC temperature TJ>T (THR).
PCB Layout Note
Noise from the current sense or the control signal can cause significant pulse width jitter in continuous-conduction
mode, and slope compensation helps alleviate these problems. Good placement and layout practices should be
followed. Avoiding long PCB traces and component leads, locating compensation and filter components near the
UTC UC3837L, and increasing the power MOS gate resistance is advised.



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