NCL30488A3集成電路（IC）的LED驅動器規(guī)格書PDF中文資料

NCL30488A3屬于集成電路（IC）的LED驅動器。由安森美半導體公司制造生產的NCL30488A3LED 驅動器器件屬于 LED 驅動器電源管理集成電路 (PMIC) 系列，可通過標稱固定電壓的電源為負載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調節(jié)的類似產品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪ζ骷ぷ鼽c進行外部控制，可在照明應用中用于實現(xiàn)調光功能。

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