OB3350CP PDF Datasheet – Cost Effective LED Controller

Part Number: OB3350CP, OB3350CPA

Function: Cost Effective LED Controller

Package: SOP 8 Pin

Manufacturer: On-Bright Electronics


OB3350CP LED Controller


The OB3350CP 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 OB3350 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.



OB3350CP datasheet pinout


1. Current Mode PWM Controller With Good Dynamic Response

2. 8V to 35V Input Voltage Range

3. External PWM Dimming Mode

4. Over Voltage Protection

5. Over Current Protection

6. Under Voltage Lockout (UVLO)

7. Thermal Shutdown


1. LCD Monitor


3. Flat panel display


Other data sheets are available within the file: 0B3350CP, 0B3350CPA

OB3350CP Datasheet PDF