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BP2861AJ 是一款外置 OVP 降壓型 LED 恒流驅(qū)動芯 片。芯片工作在電感電流臨界連續(xù)模式，適用于 85Vac~265Vac 全范圍輸入電壓的非隔離降壓型 LED 恒流電源。芯片 ROVP 引腳帶 Enable 功能，適 用于開關(guān)調(diào)色和感應(yīng)燈應(yīng)用。 BP2861AJ?芯片內(nèi)部集成 500V 功率開關(guān)，采用專利 的退磁檢測技術(shù)和高壓 JFET 供電技術(shù)，無需 VCC 電容和啟動電阻，使其外圍器件更簡單，節(jié)約了外 圍的成本和體積。 BP2861AJ 芯片內(nèi)置高精度的電流采樣電路，同時 采用了專利的恒流控制技術(shù)，實現(xiàn)高精度的 LED 恒 流輸出和優(yōu)異的線電壓調(diào)整率。芯片工作在電感 電流臨界模式，輸出電流不隨電感量和 LED 工作 電壓的變化而變化，實現(xiàn)優(yōu)異的負(fù)載調(diào)整率。 BP2861AJ具有多重保護(hù)功能，包括LED短路保護(hù)， 芯片供電欠壓保護(hù)，外置 OVP，芯片溫度過熱調(diào)節(jié) 等。 BP2861AJ 采用 SOP7 封裝.

BP2861AJ is an external OVP step-down type LED constant current driver core?A piece.The chip operates in inductive current critical continuous mode, applicableFull range of input voltage 85Vac~265Vac non-isolated step-down type

LED constant current power supply.Chip ROVP pin band Enable function, suitableFor on - off color modulation and induction lamp applications.

BP2861AJ chip integrates 500V power switch inside and adopts patentThe demagnetization detection technology and high voltage JFET power supply technology, no VCCCapacitors and start resistors make their peripherals simpler and save outsideThe cost and volume of the circumference.

BP2861AJ chip has built-in high precision current sampling circuit, at the same timePatented constant current control technology is adopted to achieve high precision LED constantStream output and excellent line voltage adjustment rate.The chip works on the inductorCurrent critical mode, the output current does not work with the inductance and LEDThe voltage changes to achieve excellent load adjustment rate.

BP2861AJ?has multiple protection features, including LED short circuit protection,Chip power supply undervoltage protection, external OVP, chip temperature overheating regulationEtc.

BP2861AJ is packaged in SOP7.