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,电路图,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 is ideal for single board solutions requiring low LED current ripple. By using fourTPS92411DDA floating switches in the SOP-8 package with thermal heatsink pad, up to 50 W of powercan be delivered for general lighting, area lighting, high-power downlights, and security lighting.
参考设计TIDA-01399主要特性:
• Non-Isolated 120-V AC Offline LED Driver With NoMagnetics
• Four TPS92411 Channels Provide 16 SwitchStates
• Efficiency: 86.5%, Power Factor: 0.97, THD: 10.5%
• TPS92411 With Thermal Pad for Higher CurrentApplications
• TPS92410 Current Regulator for Power FactorCorrection With Multiplier for Line Regulation
• TPS92410 Allows Simple NTC Thermal Foldback
• TPS92410 Monotonic Analog Dimming to 3% WithShutdown; Deeper Dimming Using TSNS Input
• FCC Title 47 Part 15 Class-B Tested EMI
参考设计TIDA-01399应用:
• General Lighting
• Area Lighting
• Security Lighting
• Downlights
• Indoor Lighting
图1.参考设计TIDA-01399外形图
主要的参考设计TIDA-01399系统指标:
图2.参考设计TIDA-01399框图
图3.参考设计TIDA-01399电路图
参考设计TIDA-01399材料清单:
图4.参考设计TIDA-01399 PCB设计图(1)
图5.参考设计TIDA-01399 PCB设计图(2)
图6.参考设计TIDA-01399 PCB设计图(3)
图7.参考设计TIDA-01399 PCB设计图(4)
图8.参考设计TIDA-01399 PCB设计图(5)
图9.参考设计TIDA-01399 PCB设计图(6)
图10.参考设计TIDA-01399 PCB设计图(7)
图11.参考设计TIDA-01399 PCB设计图(8)
