NCL30081:Step Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

The NCL30081 is a PWM current mode controller targeting isolated flyback and non-isolated constant current topologies. The controller operates in a quasi-resonant mode to provide high efficiency. Thanks to a novel control method, the device is able to precisely regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler. This controller has integrated 5 step log dimming which allows and LED bulb to be dimming from a standard wall switch.

技术特性

Quasi−resonant Peak Current−mode Control Operation
Primary Side Sensing (no optocoupler needed)
Wide VCC Range
Precise LED Constant Current Regulation ±1% Typical
Line Feed−forward for Enhanced Regulation Accuracy
Low LED Current Ripple
250 mV ±2% Guaranteed Voltage Reference for Current Regulation
~ 0.9 Power Factor with Valley Fill Input Stage
Low Start−up Current (10 A typ.)
Small Space Saving Low Profile Package
5 State Quasi−log Dimmable
Wide Temperature Range of −40 to +125°C
Pb−free, Halide−free MSL1 Product

终端产品

LED Bulbs and Downlights
LED Driver Power Supplies
Electronic Control Gear for LEDs

应用

Integrated LED Drive Electronics

优势

No opto-coupler or secondary control circuitry
Simplifies support for broad range of LED forward voltages
No need for binned forward voltage LEDs or production trimming
Supports US Energystar ® Integral LED Bulb and Luminaire Specifications
Easy handling of possible LED string faults
Avoids overheating in fault mode
Supports outdoor and high temperature environments
Robust Fault Handling
Enhanced Regulation Accuracy
Flexible Fault Handling

封装图 PACKAGE DIMENSIONS

订购信息 Ordering Information

产品

状况

Compliance

具体说明

封装

MSL*

容器

预算价格 (1千个数量的单价）

类型

外形

类型

数量

NCL30081ASNT1G

Active

Pb-free

Halide free

Step Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting, , Latching for Critical Faults

TSOP-6

318G-02

Tape and Reel

3000

$0.45

NCL30081BSNT1G