OB5682

GENERAL DESCRIPTION

OB5682x is a primary side regulation off-line LED lighting power switch which can achieve accurate LED current. It significantly simplifies LED lighting system design by eliminating the secondary side feedback circuitry, HV startup resistor and power supply capacitor.

LED current (CC control) can be adjusted by the external sense resistor connected between CS pin and ground.

OB5682x offers comprehensive protection coverage with auto-recovery features including LED open circuit protection, LED short circuit protection, Cycle-by-Cycle current limiting, and thermal foldback, etc.

OB5682x is offered in SOT33-5(A)/SOP7/DIP7/ CDFN8-7 package.

FEATURES

n HV startup without power supply capacitor

n Low System Cost and High Efficiency

n Low operation current

n Primary-side Sensing and Regulation Without TL431 and Opto-coupler

n Cycle-by-Cycle Current Limiting

n Built-in Leading Edge Blanking (LEB)

n LED Short Circuit Protection

n LED Open Circuit Protection

n Thermal foldback

APPLICATIONS

n LED lighting

TYPICAL APPLICATION

Product	BVdss(V)	90-264VAC	220Vac±20%
Product	Min	Open Frame	Open Frame
OB5682MMKP-H	650	6W	10W
OB5682NJP-H	650	9W	12W
OB5682PJP	600	12W	15W
OB5682PASP	600	14W	20W
OB5682TASP	600	16W	24W
OB5682SWUP-H	650	5W	7W
OB5682MWUP-H	650	6.3W	10.5W
OB5682NWUP-H	650	8.6W	11.7W