TI TPS92070低功率离线LED照明解决方案
关键词：
led照明 , ti , tps92070 , 离线
ti 公司的tps92070是用于低功率离线led照明的先进的pwm控制器，具有先进的调光接口，提供无损耗调光触发控制电路。没有低频光照度波动，led电流调整度优于5%，并可编最小led电流，功率因素大于0.8。tps92070集成了pwm mosfet驱动器和热关断电路，主要用在led照明灯，led灯光源，led聚光灯和led投光灯。本文介绍了tps92070主要特性，功能方框图，应用框图以及tps92070evm-648评估板主要特性，电路图和材料清单。
the tps92070 is an advanced pwm controller ideal for use in low-power, offline, led lighting applications. the integrated dimming interface circuit of the tps92070 features a non‐dissipative dimmer trigger control circuit. the tps92070 controller provides dc led current with no photometric ripple effects. the dc current also results in higher efficacy of the leds. the tps92070 provides exponentially controlled light output based on the external dimmer position. high power factor is achieved with a valley fill circuit. once a leading-edge dimmer is detected, the tps92070 sets an output to disable the pfc circuit and thus optimizes driver operation. the led current sense precision error amplifier implements deep dimming.
tps92070主要特性：
advanced integrated dimming interface
non-dissipative triac dimmer management
lamp-to-lamp uniformity during dimming
no low-frequency photometric ripple
exponential dimming profile
innovative secondary-side feedback eliminates optocoupler devices
led current regulation better than 5%
programmable minimum led current
valley switching and dcm operation for reduced emi and improved efficiency
leading edge dimmer detection
power factor > 0.8
cycle-by-cycle current limit protection
low start-up and standby currents
integrated pwm mosfet driver
thermal shutdown
16-pin, tssop package
tps92070应用：
led light bulb replacement
led luminaires
led downlights
led wall washers
2011-10-13 15:01:54 上传
下载附件 (28 kb)
图1。tps92070功能方框图
2011-10-13 15:01:54 上传
下载附件 (19.46 kb)
图2。tps92070应用框图
tps92070evm-648评估板
the tps92070evm-648 evaluation module (evm) is a low power isolated flyback converter that provides 5 on-board leds with 370 ma of drive current from a nominal 230 vac input. this evm is designed to demonstrate the tps92070 in a typical application where leds can be used for general illumination applications that require dimming.
this evaluation module uses the tps92070 high efficiency integrated dimming led lighting driver controller (ti literature number slusan1) in a low power offline flyback converter to provide 370 ma to the on-board led load. the input accepts a nominal 50 hz, 230 vac input voltage. the tps92070evm-648 is designed to be used with a leading edge triac dimmer switch in series with the input voltage to control the lumen output of the leds. the integrated dimming interface circuit on the tps92070 provides exponentially controlled light output based on the external dimmer position.
this user’s guide provides the schematic, component list, assembly drawing, and test set up necessary to evaluate the tps92070 in an ac input led lighting application. to use an input voltage greater than 240 vac, it is recommended the user change the fuse to one rated for at least 300 v at 1 a.
tps92070evm-648评估板主要特性：
• 180 vac to 240 vac input range
• led current regulation of 370 ma, nominal
• 6 w output at 16.5 v
• advanced integrated dimming interface
• exponential dimming profile
• programmable minimum led current
• valley switching and dcm operation
• leading edge dimmer detection
• valley fill power factor correction
• cycle by cycle current limit protection
tps92070evm-648评估板电性能指标：
2011-10-13 15:01:54 上传
下载附件 (27.74 kb)
2011-10-13 15:01:54 上传
下载附件 (37.71 kb)
图3。推荐的tps92070evm-648评估板测试图
2011-10-13 15:01:54 上传
下载附件 (27.67 kb)
图4。tps92070evm-648评估板电路图
tps92070evm-648评估板材料清单：
2011-10-13 15:01:54 上传
下载附件 (56.49 kb)
2011-10-13 15:01:54 上传
下载附件 (58.19 kb)
2011-10-13 15:01:54 上传
下载附件 (58.19 kb)
2011-10-13 15:01:54 上传
下载附件 (58.19 kb)
2011-10-13 15:01:54 上传
下载附件 (23.31 kb)
详情请见：
slusan1.pdf(814.29 kb, 下载次数: 0)2011-10-13 15:08:01 上传
下载次数: 0
下载积分: 积分 -1
和
sluu523.pdf(2.84 mb, 下载次数: 0)2011-10-13 15:08:10 上传
下载次数: 0
下载积分: 积分 -1
洲明首块超高清8K+3D显示屏正式点亮
油井自动化控制系统的连接点
被动元件缺货原因被披露整体产业结构或将改变
三星正在研发一款COMS传感器，或将于明年开始量产并运往日本销售
五分钟看完马自达阿特兹 已完成C-NCAP全部碰撞测试
TI TPS92070低功率离线LED照明解决方案
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经典三相不一致保护控制回路存在的隐患分析
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西门子1200/1500远程下载PLC程序的操作步骤及注意事项
ti 公司的tps92070是用于低功率离线led照明的先进的pwm控制器，具有先进的调光接口，提供无损耗调光触发控制电路。没有低频光照度波动，led电流调整度优于5%，并可编最小led电流，功率因素大于0.8。tps92070集成了pwm mosfet驱动器和热关断电路，主要用在led照明灯，led灯光源，led聚光灯和led投光灯。本文介绍了tps92070主要特性，功能方框图，应用框图以及tps92070evm-648评估板主要特性，电路图和材料清单。
the tps92070 is an advanced pwm controller ideal for use in low-power, offline, led lighting applications. the integrated dimming interface circuit of the tps92070 features a non‐dissipative dimmer trigger control circuit. the tps92070 controller provides dc led current with no photometric ripple effects. the dc current also results in higher efficacy of the leds. the tps92070 provides exponentially controlled light output based on the external dimmer position. high power factor is achieved with a valley fill circuit. once a leading-edge dimmer is detected, the tps92070 sets an output to disable the pfc circuit and thus optimizes driver operation. the led current sense precision error amplifier implements deep dimming.
tps92070主要特性：
advanced integrated dimming interface
non-dissipative triac dimmer management
lamp-to-lamp uniformity during dimming
no low-frequency photometric ripple
exponential dimming profile
innovative secondary-side feedback eliminates optocoupler devices
led current regulation better than 5%
programmable minimum led current
valley switching and dcm operation for reduced emi and improved efficiency
leading edge dimmer detection
power factor > 0.8
cycle-by-cycle current limit protection
low start-up and standby currents
integrated pwm mosfet driver
thermal shutdown
16-pin, tssop package
tps92070应用：
led light bulb replacement
led luminaires
led downlights
led wall washers
2011-10-13 15:01:54 上传
下载附件 (28 kb)
图1。tps92070功能方框图
2011-10-13 15:01:54 上传
下载附件 (19.46 kb)
图2。tps92070应用框图
tps92070evm-648评估板
the tps92070evm-648 evaluation module (evm) is a low power isolated flyback converter that provides 5 on-board leds with 370 ma of drive current from a nominal 230 vac input. this evm is designed to demonstrate the tps92070 in a typical application where leds can be used for general illumination applications that require dimming.
this evaluation module uses the tps92070 high efficiency integrated dimming led lighting driver controller (ti literature number slusan1) in a low power offline flyback converter to provide 370 ma to the on-board led load. the input accepts a nominal 50 hz, 230 vac input voltage. the tps92070evm-648 is designed to be used with a leading edge triac dimmer switch in series with the input voltage to control the lumen output of the leds. the integrated dimming interface circuit on the tps92070 provides exponentially controlled light output based on the external dimmer position.
this user’s guide provides the schematic, component list, assembly drawing, and test set up necessary to evaluate the tps92070 in an ac input led lighting application. to use an input voltage greater than 240 vac, it is recommended the user change the fuse to one rated for at least 300 v at 1 a.
tps92070evm-648评估板主要特性：
• 180 vac to 240 vac input range
• led current regulation of 370 ma, nominal
• 6 w output at 16.5 v
• advanced integrated dimming interface
• exponential dimming profile
• programmable minimum led current
• valley switching and dcm operation
• leading edge dimmer detection
• valley fill power factor correction
• cycle by cycle current limit protection
tps92070evm-648评估板电性能指标：
2011-10-13 15:01:54 上传
下载附件 (27.74 kb)
2011-10-13 15:01:54 上传
下载附件 (37.71 kb)
图3。推荐的tps92070evm-648评估板测试图
2011-10-13 15:01:54 上传
下载附件 (27.67 kb)
图4。tps92070evm-648评估板电路图
tps92070evm-648评估板材料清单：
2011-10-13 15:01:54 上传
下载附件 (56.49 kb)
2011-10-13 15:01:54 上传
下载附件 (58.19 kb)
2011-10-13 15:01:54 上传
下载附件 (58.19 kb)
2011-10-13 15:01:54 上传
下载附件 (58.19 kb)
2011-10-13 15:01:54 上传
下载附件 (23.31 kb)
详情请见：
slusan1.pdf(814.29 kb, 下载次数: 0)2011-10-13 15:08:01 上传
下载次数: 0
下载积分: 积分 -1
和
sluu523.pdf(2.84 mb, 下载次数: 0)2011-10-13 15:08:10 上传
下载次数: 0
下载积分: 积分 -1
洲明首块超高清8K+3D显示屏正式点亮
油井自动化控制系统的连接点
被动元件缺货原因被披露整体产业结构或将改变
三星正在研发一款COMS传感器，或将于明年开始量产并运往日本销售
五分钟看完马自达阿特兹 已完成C-NCAP全部碰撞测试
TI TPS92070低功率离线LED照明解决方案
中国RFID市场有哪些特色呢？
经典三相不一致保护控制回路存在的隐患分析
2023PT展 | 华为发布7.2T超高性能防火墙，持续助力运营商业务新增长
变频器的运用及注意事项
PCBA加工中都会遇到哪些常见的不良现象？
微信之父张小龙4小时历史最长演讲火热出炉！
基于PFC方案的LED驱动芯片设计
家用漏电断路器频繁跳闸的原因有哪些应该如何解决
软通动力孙洪军：AI大模型热潮下的冷思考
小米宣布参加2017年CES大会 将发布手机新品
2023年Q3拉丁美洲智能手机出货量增长8.7%
明纬电源20A导轨型冗余模块——DRDN20
温度传感器两根线怎么接线 温度传感器两根线与三根线的区别
西门子1200/1500远程下载PLC程序的操作步骤及注意事项