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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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BP3309 bảng dữ liệu(PDF) 1 Page - Bright Power Semiconductor Co., Ltd. |
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BP3309 bảng dữ liệu(HTML) 1 Page - Bright Power Semiconductor Co., Ltd. |
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1 / 8 page  BP3309 PSR Single-Stage APFC Offline LED Controller BP3309_DS_Rev 1.2 www.bpsemi.com 1 Bright Power Semiconductor Co. Confidential – Customer Use Only Description The BP3309 is a high precision primary-side regulation isolated flyback controller with single-stage Active PFC, specially designed for offline constant current LED lighting. The controller with on-chip PFC circuit operates in critical conduction mode to achieve high power factor and reduce the power MOSFET switching loss. Using proprietary current sensing scheme, the controller can precisely control the LED current without secondary side sense and feedback circuit including opto-coupler. It uses source driver architecture and patent pending internal charging circuit for low primary side switching loss, ultra fast VCC startup and LED turn on. The BP3309 uses patent compensation method to achieve excellent line regulation, and it still can be tuned externally for flexibility. The controller also has outstanding load regulation for driving wide range of LED numbers. The BP3309 offers rich protection functions to improve the system reliability, including LED short circuit protection, LED open circuit protection, VCC over voltage protection, VCC under voltage protection, CS resistor short circuit protection, CS resistor open circuit protection, cycle-by-cycle current limit and die over-temperature protection. All the protection features are auto-recovery. Features Single-Stage Active PFC for High Power Factor and Low THD Primary Side Control Constant Current Operation, No Opto-Coupler required Ultra Fast LED Turn On( <200ms @85Vac) ±3% LED Current Accuracy Excellent Line and Load Regulation Critical Conduction Mode Operation Source Driver Structure for Improved Efficiency Ultra-Low (20uA) Startup Current Ultra-Low (600uA) Operating Current High Resistance Feedback Resistor for Improved Efficiency LED Short and Open Circuit Protection CS Resistor Short and Open Circuit Protection Transformer Saturation Protection Cycle-by-Cycle Current Limit VCC Over-voltage and Under-voltage Protection Over Temperature Protection Auto Recovery Available in SOP-8 package Applications E27/ GU10 LED Bulb, Spot Light PAR30, PAR38 LED Lamp T8/T10 LED String Other LED Lighting Typical Application NA NP NS AC BP3309 COMP CS ST FB OUT GND LN VCC 4 1 3 2 7 8 6 5 Figure 1. Typical application circuit for BP3309 |
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Mô tả tương tự - BP3309 |
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