On-Bright OB3341S
The OB3341S is a high power factor, monolithic Buck regulator with advanced features to provide high efficiency control and high accuracy constant current output for LED lighting applications. It adopts constant on time control for power factor correction (PFC), zero current detectors (ZCD) to ensure quasi-resonant valley turn-on for high efficiency operation. OB3341S is provided with DIP8 package.| Part No. | OB3341S |
|---|---|
| Datasheet | OB3341S Download |
| Manufacturer |  On-Bright |
| Description | Buck LED Driver |
| Buy | Stock & Price |
GENERAL DESCRIPTION
OB3341S integrates a 2A MOSFET to decrease physical volume. OB3341S offers good protection coverage including VCC under voltage lockout (UVLO), VCC over voltage protection, cycle-by-cycle current limiting, over temperature protection, COMP pin floating protection and LED open/short protection. OB3341S is provided with DIP8 package.FEATURES
● Buck topology power switching with single stage PFC (PF>0.9)● Integrated 2A 600V MOSFET
● Quasi-resonant valley turn-on mode operation to achieve high efficiency (>90%)
● High accuracy output current (±3%)
● LED open/short protection
● Low power dissipation at LED short
● Ultra-low start-up current (typical 5uA)
APPLICATIONS
● LED lighting● Tube lighting
● PAR lighting
● Bulb lighting TYPICAL APPLICATION +Vin OB3341S 1 VCC DRAIN 8 2 ZCD DRAIN 7 3 GND SOURCE 6 4 COMP CS 5 Figure1: OB3341S Typical Application Schematic ©On-Bright Electronics Confidential -1- Preliminary Datasheet OB_DOC_DS_3341S00 GENERAL INFORMATION Terminal Assignment In DIP8 Package.
