OB3390 is a primary side control offline LED lighting which can achieve accurate LED current and low system cost for an isolate lighting application in a single stage converter. It can significantly simplify the LED lighting system design by eliminating the secondary side feedback components and the optocoupler.
Features:
◆ High precision Constant Current Regulation at Universal AC input ◆ Primary-side Sensing and Regulation Without TL431 and Opto-coupler ◆ Low System Cost and High Efficiency ◆ Programmable CC Regulation ◆ Built-in Primary winding inductance compensation ◆ Driver BJT Switch ◆ Ultra Low Start-up Current (Typ. 1uA) ◆ LED short Protection ◆ LED open Protection ◆ Cycle-by-Cycle Current Limiting ◆ Built-in Leading Edge Blanking (LEB) ◆ VDD Over Voltage Protection ◆ VDD Under Voltage Lockout with Hysteresis ◆ Available in SOT23-5 packages, RoHS compliant
Applications:
◆ LED Lighting ◆ LED PAR Lamp
Device | Type | Package | Max Pout(W)(85~264V) | OB3390/T | Driver | SOT23-5 | 5 | OB3391 | BJT Power Switch | SOP8 | 1~2 |
Typical Application:
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