Internal HV start-up non-isolated quasi-resonant mode converter for LED driver
General Description
The 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,Applications
LED 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
Notes
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