Internal HV start-up non-isolated quasi-resonant mode converter for
LED driver General DescriptionThe PN8317 consists of a high
precision quasi-resonant mode CC primary side controller and a
power MOSFET,specificatlly designed for a high performance low
power LED lighting with minimal external components and
single-inductance. The chip adopts buck topologh and work in
quasi-resonant mode;The chip adopts a patent HV DMOS self-supply
technology,so anxiliary winding and HV start-up resistance could be
eliminated . The chip offers complete protection coverage with
antomotic self-recovery feature including Cycle-by-cycle current
limiting protection(OCP) and feedback loop open
protection(OLP),over temperature protection (OTP), Rcs open/short
protection and LED-open/short circuit protection etc.Internal HV
start-up circuit and the chip's very low consumption help to meet
high efficiency. In CC control,the current and output power setting
can be adjusted externally by the sense resistor Rcs at CS pin.
Features:Intergrated 530V avalanche-rugged power MOSFET Intergrated
HV soft start circuit without additional start-up resistance Rapid
self-supply patent technology without additionalpower supply
circuit ±3% precision LED current Adjustable constant current
output values 1% precision Line voltage Compensation Good
Protection Coverage With over temperature protection (OTP) over
current limiting (OCP) LED open and short circuit protection
recovery protection Mode Rcs open/short Protection
3,ApplicationsLED Fluorescent Lamp LED Panel Why choose us?*
Specilaze in IC for around 14 years * 100% Tested before sale
* Cooperate with over 35 famous brands from domestic and
international market * Competitive and reasonable price *
Abundant inventory and short lead time about 3-7 days * 1 Year
warranty * 24hrs supports from our sales and R&D team
Notes1.The pictures are taken by camera. 2.You can contact us for a
better price. 3.Feel free to contact us if you would like to see
other models. /* March 10, 2023 17:59:20
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