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OB3350G - High performance and Cost Effective LED Controller

This page provides the datasheet information for the OB3350G, a member of the OB3350G-On High performance and Cost Effective LED Controller family.

Datasheet Summary

Description

OB3350G is a highly integrated and cost effective Light Emitting Diode (LED) driver optimized for LCD monitor and LCD TV backlighting application.

It provides a high performance LED backlight solution with minimized BOM count.

Features

  • Current Mode PWM Controller With Good Dynamic Response.
  • 9V to 30V Input Voltage Range.
  • High current accuracy.
  • External PWM Dimming Mode.
  • Over Voltage Protection.
  • Over Current Protection.
  • Under Voltage Lockout (UVLO).
  • Thermal Shutdown.
  • Diode & Inductor Short Protection.
  • LED cathode short to GND Protection.

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Datasheet preview – OB3350G

Datasheet Details

Part number OB3350G
Manufacturer On-Bright
File Size 699.13 KB
Description High performance and Cost Effective LED Controller
Datasheet download datasheet OB3350G Datasheet
Additional preview pages of the OB3350G datasheet.

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Full PDF Text Transcription

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OB3350G High performance and Cost Effective LED Controller GENERAL DESCRIPTION OB3350G is a highly integrated and cost effective Light Emitting Diode (LED) driver optimized for LCD monitor and LCD TV backlighting application. It provides a high performance LED backlight solution with minimized BOM count. The OB3350G contains a PWM boost driver which uses current mode control and fixed frequency operation 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 300mV, the error is amplified to control the pulse width of the power switch thus to regulate the current flowing the LED.
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