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[原创] TI TIDA-01399 50W 120VAC离线LED驱动器参考设计

关键词:电源管理 LED驱动器 LED照明 TIDA-01399 50W

时间:2017-10-20 10:03:19       作者:TI       来源:中电网

TI公司的TIDA-01399是采用TPS92410和TPS92411的50W 120VAC离线LED驱动器参考设计,效率86.5%,功率因素0.97,THD为10.5%,所有元件都在单一的PCB上,主要用在通用照明,区域照明,安全照明,向下照明和室内照明.本文介绍了参考设计TIDA-01399主要特性和系统指标,以及框图,路图,材料清单和PCB设计图.

The TIDA-01399 TI Design showcases the TPS92410and TPS92411 with 50-W output power for arealighting with all components on a single printed-circuitboard (PCB). This design uses four TPS92411 stagesallowing 16 different switch states during the rising andfalling rectified-AC waveform, which optimizes thecurrent-regulating MOSFET headroom. The TPS92410allows monotonic analog dimming down to 3% beforeshutting off the current regulator. Electromagneticinterference (EMI) filtering without magnetics has beenincluded and designed to meet FCC Title 47 Part 15class-B conduction requirements.

TIDA-01399 provides a method to drive 50 W of LEDs on a single board without the use of magnetics. By using energy storage capacitors, low light-emitting diode (LED) ripple can be realized.The TPS92410device provides power factor correction (PFC) and line regulation while allowing monotonic analogdimming.Thermal foldback is easily accomplished with a negative temperature coefficient (NTC)thermistor. The design..

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