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OB3370NCP

Part Number	OB3370NCP
Manufacturer	On-Bright
Description	Cost Effective LED Controller
Published	Jan 20, 2022
Detailed Description	OB3370N Cost Effective LED Controller GENERAL DESCRIPTION OB3370N is a high integrated and cost effective Light Emittin...
Datasheet	OB3370NCP PDF File

Overview

OB3370N Cost Effective LED Controller GENERAL DESCRIPTION OB3370N is a high integrated and cost effective Light Emitting Diode (LED) driver optimized for LCD monitor and LCD TV backlight application.
The OB3370N operates in voltage mode boost topology with fixed frequency to regulate the LED current.
The LED current is sensed through an external current sense resistor.
The voltage across the sensing resistor is compared with reference level of 200mV, the error is amplified to control the pulse width of the power switch thus to regulate the current flowing the LED.
It offers both internal burst and external low frequency PWM (LPWM) dimming methods for a wide range of dimming control.
OB3370N integrates under voltage lockout (VCC UVLO) and output over voltage protections that prevent the damage in the event of abnormal conditions.
The output voltage level is monitored through OVP pin and it turns off the converter if an over voltage condition is present due to an open circuit condition.
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