采用LYTSwitch-7系列TRIAC调光LED驱动器参考设计DER586
powerint公司的lytswitch™-7系列是相切(phase-cut)可调光单级led驱动器,具有pfc和恒流电流输出.器件集成了带有可变开态crm控制器的725v高压mosfet.功率因素大于0.9,效率大于85%,线路输入电压±3% cc稳压,输入电压90 vac–308 vac,主要用在led照明.本文介绍了lytswitch™-7系列产品亮点,框图和7.5 w,60 v,125 ma调光非隔离a19 led驱动器电路图,以及用于br-30调光led灯的采用lytswitch-7系列10w 88%效率triac调光led驱动器参考设计der586主要特性和指标,电路图,材料清单和pcb设计图.
the lytswitch™-7 family is ideal for single-stage, high pf, constant current led dimmable applications.
the family incorporates a high-voltage mosfet with a variable on-time crm controller. extensive protection features with minimum external components provide industry leading power density and functionality.
the crm operation results in low turn-on losses and reduces cost of output diode (slower reverse-recovery type can be used).
lytswitch-7 devices are suitable for applications from 4 w to 22 w. for more information, see application section. lytswitch-7 peak current mode operation is suitable for triac applications without the need for an active bleeder.
lytswitch™-7系列产品亮点:
single-stage pfc + accurate cc output
±3% cc regulation in single line input voltage applications
power factor >0.9
high efficiency >85%
robust 725 v mosfet for increased line voltage surge resistance
critical conduction mode (crm) buck
low emi
excellent line noise and transient rejection
dimming highlights
fast turn-on (0.9
• accurate constant led current (cc) regulation, ±5%
• high efficiency, > 88% at 120 vac
• low cost and low component count for compact pcb solution
• triac dimmable
• works with a wide selection of triac dimmers
• fast start-up time (<500 ms) – no perceptible delay
• minimum dead-band or visible pop-on effect.
• integrated protection features
• open load and output short-circuit protection
• thermal fold-back protection
• no damage during line brown-out or brown-in conditions
• meets iec 2.5 kv ring wave, 1 kv differential surge and en55015 conducted emi
图3.参考设计der586外形图(正面)
图4.参考设计der586外形图(背面)
参考设计der586主要指标:
图5.参考设计der586电路图
参考设计der586材料清单:
图6.参考设计der586 pcb设计图(正面)
图7.参考设计der586 pcb设计图(背面)
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the lytswitch™-7 family is ideal for single-stage, high pf, constant current led dimmable applications.
the family incorporates a high-voltage mosfet with a variable on-time crm controller. extensive protection features with minimum external components provide industry leading power density and functionality.
the crm operation results in low turn-on losses and reduces cost of output diode (slower reverse-recovery type can be used).
lytswitch-7 devices are suitable for applications from 4 w to 22 w. for more information, see application section. lytswitch-7 peak current mode operation is suitable for triac applications without the need for an active bleeder.
lytswitch™-7系列产品亮点:
single-stage pfc + accurate cc output
±3% cc regulation in single line input voltage applications
power factor >0.9
high efficiency >85%
robust 725 v mosfet for increased line voltage surge resistance
critical conduction mode (crm) buck
low emi
excellent line noise and transient rejection
dimming highlights
fast turn-on (0.9
• accurate constant led current (cc) regulation, ±5%
• high efficiency, > 88% at 120 vac
• low cost and low component count for compact pcb solution
• triac dimmable
• works with a wide selection of triac dimmers
• fast start-up time (<500 ms) – no perceptible delay
• minimum dead-band or visible pop-on effect.
• integrated protection features
• open load and output short-circuit protection
• thermal fold-back protection
• no damage during line brown-out or brown-in conditions
• meets iec 2.5 kv ring wave, 1 kv differential surge and en55015 conducted emi
图3.参考设计der586外形图(正面)
图4.参考设计der586外形图(背面)
参考设计der586主要指标:
图5.参考设计der586电路图
参考设计der586材料清单:
图6.参考设计der586 pcb设计图(正面)
图7.参考设计der586 pcb设计图(背面)
多功能集成平台化会是建筑机器人的未来吗？
蔚来电驱动系统与智能座舱系统技术详解
三星或生产少量5g版S10供用户尝鲜体验之用
苏州视立得金属件胶体视觉检测系统 2D/3D视觉技术优势
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华为Mate30系列新特性版本内测开启 新增HMS服务应用以及深色模式
ADSP-BF60X系列处理器产品的介绍会
等面积PWM调制在变频调速系统的实现
振动试验机，在操作的过程中，有哪些注意事项？
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如何测量整流桥的好坏
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2020(第十七届)中国物联网产业大会在广州盛大举办