東森微電子快速響應(yīng)LED市場(chǎng)變化,新推一款Diodes(BCD)的專(zhuān)利脈沖頻率調(diào)制技術(shù)來(lái)嚴(yán)格調(diào)節(jié)LED電流的總線(xiàn)可調(diào)光LED燈驅(qū)動(dòng)芯片AP1694.
東森微電子為您提供完善的AP1694A/AP1694M應(yīng)用解決方案,該AP1694A/AP1694M可提供5%的初始LED電流準(zhǔn)確度，有效滿(mǎn)足大多數(shù)總線(xiàn)可調(diào)光LED照明應(yīng)用的要求，為多種總線(xiàn)可調(diào)光LED燈設(shè)計(jì)提供高效的通用驅(qū)動(dòng)器解決方案。
Diodes(BCD)的AP1694優(yōu)勢(shì)特性：
1.符合美國(guó)電氣制造商協(xié)會(huì) （NEMA） SSL6調(diào)光曲線(xiàn)標(biāo)準(zhǔn)及IEC6100-3-2諧波標(biāo)準(zhǔn)
2.AP1694利用Diodes(BCD)的專(zhuān)利脈沖頻率調(diào)制技術(shù)來(lái)嚴(yán)格調(diào)節(jié)LED電流，以實(shí)現(xiàn)高功率因數(shù)和低總諧波失真；
3.AP1694采用臨界導(dǎo)通工作模式，確保驅(qū)動(dòng)器的高效率及低電磁干擾特性；
4.AP1694為原邊側(cè)控制器，加上固有的穩(wěn)定性，免除了環(huán)路補(bǔ)償?shù)男枰?BR>
5.AP1694適用于120V和230V交流輸入，為總線(xiàn)可調(diào)光LED燈設(shè)計(jì)師提供更高的功率密度；
6.AP1694提供5%的初始LED電流準(zhǔn)確度，有效滿(mǎn)足大多數(shù)總線(xiàn)可調(diào)光LED照明應(yīng)用的要求；
7.AP1694可降低10%到50%的總物料清單成本,更簡(jiǎn)單的布線(xiàn)和更小的電路占位面積。
AP1694除了具備上述的一些優(yōu)勢(shì)特性之外，它還支持非隔離式降壓、升降壓和隔離式反激拓?fù)�，與前沿觸發(fā)和后沿觸發(fā)的多種不同調(diào)光器兼容，并集成了完善的如：負(fù)載開(kāi)路檢測(cè)、過(guò)壓、短路及過(guò)溫保護(hù)等一系列保護(hù)功能于一體。
AP1694 Features
- Primary Side Control for Output Current Regulation without Opto-coupler
- Boundary Conduction Mode (BCM) Operation to Achieve High efficiency
- High PF and Low THD
- High Efficiency without Dimmer
- Wide Range of Dimmer Compatibility
- Dimming Curve Compliant with NEMA SSL6
- Low Start-up Current
- Tight LED Current
- Tight LED Open Voltage
- BJT Transistor Driver
- Dynamic Base Driver Control
- Valley-mode Switching to Minimize the Transition Loss
- Easy EMI
- Internal Protections:
- Under Voltage Lock Out (UVLO)
- Leading-edge Blanking (LEB)
- Output Short Protection
- Output Open Protection
- Over Temperature Protection
- Flexible for Design with Small Form Factor and Very Low BOM Cost
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Description
The AP1694 is a high performance AC/DC power factor corrector for mains dimmable LED driver applications. The device uses Pulse Frequency Modulation (PFM) technology to regulate output current while achieving high power factor and low THD. It operates as a BCM (Boundary Conduction Mode) controller which is good for EMI.
The AP1694 provides accurate constant current (CC) regulation while removing the opto-coupler and secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. It can meet the requirement of IEC6100-3-2 harmonic standard.
The AP1694 features low start-up current, low operation current. It adopts dynamic base driver control technology and valley on switching mode to achieve high efficiency. It also has rich protection features including over voltage, short circuit, over temperature protection.
The AP1694 provides the dimmable LED driver with a wide dimmer compatibility including leading edge and trailing edge dimmer. The AP1694 can achieve deep dimming down to 1%, while the dimming curve is compliant with the standard of NEMA SSL6.
The AP1694 is available in SO-8 package.
Applications
- Mains Dimmable LED Lighting
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