Description
OB339F High Precision Off-line Primary-Side PWM Power Switch GENERAL .
OB339F is a primary side regulation off-line LED lighting controller which can achieve accurate LED current.
Features
* including Cycle-by-Cycle current limiting, VDD OVP, VDD clamp and UVLO. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique. OB339F is offered in DIP8 package. FEATURES
* High Precise Constant Current Regulation at Universal AC input
* Primary-side
Applications
* Low Power AC/DC offline SMPS for
* LED applications
Fig.1. Typical CC/CV Curve
. TYPICAL APPLICATION
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Datasheet OB_DOC_DS_339FA0
OB339F
High Precision Off-line Primary-Side PWM Power Switch
GENERAL INFORMATION
Pin Configuration The pin map is shown a
