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AL9910A

off-line-led-drivers; >90% Efficiency\nUniversal rectified 85 to 277VAC input range\nInput voltage surge ratings up to 500V\nInternal voltage regulator removes start-up resistor o 7.5V MOSFET drive – AL9910 o 10V MOSFET drive – AL9910A\nConstant-current LED?driver\nApplications from a few mA to more than 1A Output\nPWM Low-Frequency Dimming via Enable pin\nInternal Thermal Protection (OTP)\nSO-8 and SO-8EP in “Green” Molding Compound (No Br, Sb)\nLead Free Finish/ RoHS Compliant;

The AL9910/A high voltage PWM LED?driver-controller provides an efficient solution for offline high brightness LED?lamps from rectified line voltages ranging from 85VAC up to 277VAC. The AL9910 drives external MOSFETs at switching frequencies up to 300kHz, with the switching frequency determined by a single resistor. The AL9910 topology creates a constant current through the LEDs providing constant light output. The output current is programmed by one external resistor and is ultimately determined by the external MOSFET chosen and therefore allows many low current LEDs to be driven as well as a few high current LEDs The LED?brightness can be varied by both Linear and PWM dimming using the AL9910’s LD and PWM_D pins respectively. The PWM_D input operates with duty ratio of 0-100% and frequency of up to several kHz. The AL9910 can withstand input voltages up to 500V which makes it very resilient to transients at standard mains voltages. As well as standard SO-8 package the AL9910 is available in the thermally enhanced SO-8EP package.

AL9910A

UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER

AL9910A

UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER

AL9910A

UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER

AL9910A

PWM high-efficiency LED driver control IC.

AL9910A

PWM high-efficiency LED driver control IC

AL9910A

AL9910EV4 Evaluation board connection diagram

AL9910A (Chinese Version)

off-line-led-drivers; 效率>90%?\n\t\n\t\t通用整流85 到277VAC輸入范圍?\n\t\n\t\t輸入電壓高達(dá)500V?\n\t\n\t\t內(nèi)部穩(wěn)壓器省掉啟動(dòng)電阻\n\t\n\t\t7.5V MOSFET驅(qū)動(dòng) – AL9910?\n\t\n\t\t10V MOSFET驅(qū)動(dòng) – AL9910A?\n\t\n\t\t更嚴(yán)格電流感測(cè)容測(cè)：5% AL9910-5?\n\t\n\t\t驅(qū)動(dòng)兼?zhèn)涓呒暗碗娏鱈ED的LED燈具?\n\t\n\t\t以線性及PWM調(diào)光提供LED亮度控制?\n\t\n\t\t內(nèi)部溫度保護(hù) (OTP)?\n\t\n\t\t采用“綠色”模塑合成材料的SO-8和SO-8EP封裝 (無溴和銻) ，具有無鉛涂料/ 符合RoHS (注1);

AL9910/A高電壓脈沖寬度調(diào)制 (PWM) LED驅(qū)動(dòng)器控制器，為 離線高亮度LED燈提供高效率的解決方案，整流線性電壓由 85VAC到高達(dá)277VAC。AL9910以最高300kHz的開關(guān)頻率驅(qū)動(dòng) 外部MOSFET，而開關(guān)頻率由單一電阻來設(shè)定。AL9910拓?fù)?打造了流過多顆LED的恒定電流，帶來恒定光線輸出。輸出電 流通過一個(gè)外部電阻進(jìn)行編程，并最終由選定的外部MOSFET 來決定，因而可驅(qū)動(dòng)多顆低電流LED及數(shù)顆高電流LED。?\n\n\t?\n\n\tLED的亮度可利用AL9910的LD管腳做線性調(diào)光，或通過 PWM_D管腳進(jìn)行PWM調(diào)光。PWM_D輸入以0~100%的占空 比率工作，頻率可達(dá)數(shù) kHz。?\n\n\t?\n\n\tAL9910能抵受高達(dá)500V的輸入電壓， 使它可以非常靈活面對(duì) 標(biāo)準(zhǔn)主線電壓的瞬變。AL9910可以SO-8 和溫度增強(qiáng) SO-8EP 封裝供貨。

AL9910A-5

off-line-led-drivers; >90% Efficiency?\n\t\n\t\tUniversal Rectified 85 to 277VAC Input Range?\n\t\n\t\tInput Voltage Up to 500V\n\t\n\t\tInternal Voltage Regulator Removes Start-Up Resistor\n\t\t\n\t\t\t\n\t\t\t\t? 7.5V MOSFET Drive – AL9910\n\t\t\t\n\t\t\t\t? 10V MOSFET Drive – AL9910A\n\t\t\n\t\n\t\n\t\tTighter Current Sense Tolerance: 5% AL9910-5, AL9910A-5?\n\t\n\t\tDrives LED Lamps with Both High and Low Current LEDs?\n\t\n\t\tLED Brightness Control with Linear and PWM Dimming?\n\t\n\t\tInternal Thermal Protection (OTP)?\n\t\n\t\tAvailable in SO-8 and SO-8EP Packages?\n\t\n\t\tTotally Lead-Free & Fully RoHS Compliant?\n\t\n\t\tHalogen and Antimony Free. “Green” Device;

The AL9910/A high voltage PWM LED driver-controller provides an efficient solution for offline high brightness LED lamps from rectified line voltages ranging from 85VAC up to 277VAC. The AL9910 drives external MOSFETs at switching frequencies up to 300kHz, with the switching frequency determined by a single resistor. The AL9910 topology creates a constant current through the LEDs providing constant light output. The output current is programmed by one external resistor and is ultimately determined by the external MOSFET chosen and therefore allows many low current LEDs to be driven as well as a few high current LEDs.?\n\n\t?\n\n\tThe LED brightness can be varied by both Linear and PWM dimming using the AL9910’s LD and PWM_D pins respectively. The PWM_D input operates with duty ratio of 0-100% and frequency of up to several kHz.?\n\n\t?\n\n\tThe AL9910 can withstand input voltages up to 500V which makes it very resilient to transients at standard mains voltages. As well as standard SO-8 package the AL9910 is available in the thermally enhanced SO-8EP package.

AL9910A-5

UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED DRIVER