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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