Fairchild FLS3247 10W离线LED驱动解决方案
关键词：
fairchild , fls3247 , led
fairchild公司的fls3247是集成了功率mosfet的单级pfc初级调整的离线led驱动器,包括pwm控制器和功率mosfet,能增强低功率反激转换器的性能,应用电压范围80vac ~ 308vac,提供led开路,短路和超温保护功能.主要用于led照明系统.本文介绍了fls3247主要特性,方框图,通用输入10w led驱动器电路图以及10w led驱动器评估板主要指标,电路图,材料清单和pcb布局图.
this highly integrated pwm controller with power mosfet, fls3217 / fls3247, provides several features to enhance the performance of low-power flyback converters. the proprietary topology enables simplified circuit design for led lighting applications.
by using the single-stage topology with primary-side regulation, an led lighting board can be implemented with the few external components and minimized cost; requiring no input bulk capacitor or feedback circuitry.
to implement good power factor and low thd, constant on-time control is utilized with an external capacitor connected to comi. precise constant-current control regulates accurate output current versus changes in input voltage and output voltage. the operating frequency is proportionally changed by the output voltage to guarantee dcm operation with higher efficiency and simple design.
fls3217 and fls3247 provide protection features such as open-led, short-led, and over-temperature protection. the current-limit level is automatically reduced to minimize the output current and protect external components in short-led condition.
fls3247主要特性:
cost-effective solution without input bulk capacitor and feedback circuitry
power-factor correction (pfc)
integrated power mosfet
accurate constant-current (cc) control independent online voltage, output voltage, and magnetizing inductance variation
linear frequency control for increased efficiency
open / short-led protection
cycle-by-cycle current limiting
over-temperature protection with auto restart
low startup current: 20μa
low operating current: 5ma
vdd over-voltage protection (ovp)
vdd under-voltage lockout (uvlo)
application voltage range: 80vac ~ 308vac
fls3247应用:
led lighting system
2012-8-2 15:33:29 上传
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图1.fls3247方框图
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图2.fls3247通用输入10w led驱动器电路图
10w led驱动器评估板
this document describes the proposed solution for a universal line voltage led ballast using the fls3247n primary-side regulator (psr) single-stage controller. the input voltage range is 90vrms – 265vrms and there is one dc output with a constant current of 400ma at 25vmax. this document contains a general description of the fls3247n, the power supply specification, schematic, bill of materials, and typical operating characteristics.
10w led驱动器评估板主要指标:
2012-8-2 15:33:29 上传
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2012-8-2 15:28:55 上传
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图3.10w led驱动器评估板外形图(59mm (l) ×25.5mm (w) × 20.0mm (h))
10w led驱动器评估板主要特性:
cost effective solution without input bulk capacitor and feedback circuitry
power factor correction
accurate constant-current (cc) control
linear frequency control for better efficiency and easy design
constant current regulation vs. output voltage change (11~28v) : <± 2.85%
constant current regulation vs. line voltage change (90~265vac) : 0.9), thd(< 20%)
2012-8-2 15:33:29 上传
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图4.10w led驱动器评估板电路图
10w led驱动器评估板材料清单:
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图5.10w led驱动器评估板布局图(顶层)
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图6.10w led驱动器评估板布局图(底层)
详情请见:
fls3247.pdf(783.01 kb, 下载次数: 0)2012-8-2 15:28:48 上传
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下载积分: 积分 -1
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an-febl042.pdf(3.36 mb, 下载次数: 0)2012-8-2 15:28:24 上传
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fairchild公司的fls3247是集成了功率mosfet的单级pfc初级调整的离线led驱动器,包括pwm控制器和功率mosfet,能增强低功率反激转换器的性能,应用电压范围80vac ~ 308vac,提供led开路,短路和超温保护功能.主要用于led照明系统.本文介绍了fls3247主要特性,方框图,通用输入10w led驱动器电路图以及10w led驱动器评估板主要指标,电路图,材料清单和pcb布局图.
this highly integrated pwm controller with power mosfet, fls3217 / fls3247, provides several features to enhance the performance of low-power flyback converters. the proprietary topology enables simplified circuit design for led lighting applications.
by using the single-stage topology with primary-side regulation, an led lighting board can be implemented with the few external components and minimized cost; requiring no input bulk capacitor or feedback circuitry.
to implement good power factor and low thd, constant on-time control is utilized with an external capacitor connected to comi. precise constant-current control regulates accurate output current versus changes in input voltage and output voltage. the operating frequency is proportionally changed by the output voltage to guarantee dcm operation with higher efficiency and simple design.
fls3217 and fls3247 provide protection features such as open-led, short-led, and over-temperature protection. the current-limit level is automatically reduced to minimize the output current and protect external components in short-led condition.
fls3247主要特性:
cost-effective solution without input bulk capacitor and feedback circuitry
power-factor correction (pfc)
integrated power mosfet
accurate constant-current (cc) control independent online voltage, output voltage, and magnetizing inductance variation
linear frequency control for increased efficiency
open / short-led protection
cycle-by-cycle current limiting
over-temperature protection with auto restart
low startup current: 20μa
low operating current: 5ma
vdd over-voltage protection (ovp)
vdd under-voltage lockout (uvlo)
application voltage range: 80vac ~ 308vac
fls3247应用:
led lighting system
2012-8-2 15:33:29 上传
下载附件 (42.96 kb)
图1.fls3247方框图
2012-8-2 15:33:29 上传
下载附件 (30.26 kb)
图2.fls3247通用输入10w led驱动器电路图
10w led驱动器评估板
this document describes the proposed solution for a universal line voltage led ballast using the fls3247n primary-side regulator (psr) single-stage controller. the input voltage range is 90vrms – 265vrms and there is one dc output with a constant current of 400ma at 25vmax. this document contains a general description of the fls3247n, the power supply specification, schematic, bill of materials, and typical operating characteristics.
10w led驱动器评估板主要指标:
2012-8-2 15:33:29 上传
下载附件 (82.82 kb)
2012-8-2 15:28:55 上传
下载附件 (49.96 kb)
2012-8-2 15:33:29 上传
下载附件 (50.46 kb)
图3.10w led驱动器评估板外形图(59mm (l) ×25.5mm (w) × 20.0mm (h))
10w led驱动器评估板主要特性:
cost effective solution without input bulk capacitor and feedback circuitry
power factor correction
accurate constant-current (cc) control
linear frequency control for better efficiency and easy design
constant current regulation vs. output voltage change (11~28v) : <± 2.85%
constant current regulation vs. line voltage change (90~265vac) : 0.9), thd(< 20%)
2012-8-2 15:33:29 上传
下载附件 (26.87 kb)
图4.10w led驱动器评估板电路图
10w led驱动器评估板材料清单:
2012-8-2 15:33:29 上传
下载附件 (104.42 kb)
2012-8-2 15:33:29 上传
下载附件 (31.33 kb)
图5.10w led驱动器评估板布局图(顶层)
2012-8-2 15:33:29 上传
下载附件 (25.91 kb)
图6.10w led驱动器评估板布局图(底层)
详情请见:
fls3247.pdf(783.01 kb, 下载次数: 0)2012-8-2 15:28:48 上传
下载次数: 0
下载积分: 积分 -1
和
an-febl042.pdf(3.36 mb, 下载次数: 0)2012-8-2 15:28:24 上传
下载次数: 0
下载积分: 积分 -1
四花样彩灯控制器
5G时代中兴能回归主流手机品牌的队列吗？
初学者写Python爬虫的四大工具
5v电压转化为220v逆变器设计方法
莱特币分叉的数字货币“莱特易LTE”介绍
Fairchild FLS3247 10W离线LED驱动解决方案
2020年全国行业职业技能大赛人工智能应用技术技能大赛 天津大有收获
面对新科技职场也疯狂：联想预测2020职场将现沟通协作新方式
嵌入式产品开发的基本流程和注意事项
高通包揽40%主控芯片！从荣耀Magic3和小米11，看国产射频芯片追赶之路
小米6和荣耀9哪个好？小米6和荣耀9,性能派谁最快？
NB-IoT下的消防栓压力监测系统的特点和优势
看了这个，我的电源选择困难症好了！
二极管双t型电路特点
Fluke 50Ⅱ系列新型测温表的特点及性能分析
关于智能座舱中RTC应用介绍
为什么会突然出现IP冲突呢？
智慧镜面显示屏已正式亮相，它都有哪些功能
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如何看待苹果HomePod？它或许是拥有最好音质的iOS设备