NCL30488_V01中文資料安森美半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

The NCL30488 is a power factor corrected flyback controller

targeting isolated constant current LED drivers. The controller

operates in a quasi?resonant mode to provide high efficiency. Thanks

to a novel control method, the device is able to tightly regulate a

constant LED current from the primary side. This removes the need

for secondary side feedback circuitry, its biasing and for an

optocoupler.

The device is highly integrated with a minimum number of external

components. A robust suite of safety protection is built in to simplify

the design.

Features

? High Voltage Startup

? Quasi?resonant Peak Current?mode Control Operation

? Primary Side Feedback

? CC / CV Accurate Control Vin up to 320 V rms

? Tight LED Constant Current Regulation of ±2 Typical

? Digital Power Factor Correction

? Analog and Digital Dimming

? Cycle by Cycle Peak Current Limit

? Wide Operating VCC Range

? ?40 to + 125°C

? Robust Protection Features

? Brown?Out

? OVP on VCC

? Constant Voltage / LED Open Circuit Protection

? Winding Short Circuit Protection

? Secondary Diode Short Protection

? Output Short Circuit Protection

? Thermal Shutdown

? Line over Voltage Protection

? This is a Pb?Free Device

Typical Applications

? Integral LED Bulbs

? LED Power Driver Supplies

? LED Light Engines