OB3370NCP PDF Datasheet – LED Controller, SOP 8, On-Bright

An LED controller is an electronic device or component used to control the operation, brightness, color, and effects of light-emitting diodes (LEDs). LED controllers are commonly used in various applications, including lighting systems, display panels, signage, automotive lighting, and decorative lighting, to achieve dynamic and customized lighting effects.

Part Number: OB3370N, OB3370NCP

Function: Cost Effective LED Controller

Package: SOP 8 Pin Type

Manufacturer: On-Bright

Images:OB3370NCP pdf pinout



The OB3370NCP 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. […]

OB3370NCP datasheet


1.  Voltage Mode PWM Controller

2. Flexible Dimming Mode Control:

(1) Internal burst dimming control
(2) External burst (LPWM) dimming control

3. 0-2V DC voltage direct dimming control without external circuits

4. Output Over Voltage Protections

5. Under Voltage Lockout

OB3370NCP PDF Datasheet