The chip contains power supply and voltage stabilizing circuit, time-based circuit, signal decoding module, data buffer, built-in oscillator, four channel constant current driver with a default output current of 17mA. At the same time, users can also adjust the required current through the external rext resistor, SPWM gray level of 65536, SPWM output, supporting output polarity reversal at the out end. The built-in EEPROM stores the chip address, and the data bus automatically writes the address once, which can exit the address writing state online without power on again.

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[ CXLE8785P ]"
目录
1.产品概述 2.产品特点 3.应用范围 4.技术规格书下载(PDF文档)
一.产品概述
CXLE8784P是并联差分传输四通道LED驱动输出控制专用芯片,兼容并扩展DMX512(1990)信号协议。
芯片内含电源稳压电路,时基电路,485模块,信号解码模块,数据缓存器,内置振荡器,四通道恒流驱动器默认输出电流17mA,同时用户也可以通过外挂REXT电阻调节所需的电流,SPWM灰度等级65536级,SPWM输出,支持输出OUT端极性反转。内置EEPROM存放芯片地址,数据总线一次性自动写地址,可在线退出写地址状态,无需重新上电。双线差分传输,带载点数多,抗干能力强,传输距离远
二.产品特点
OUTR/G/B/W默认电流17mA,外接REXT电阻调节最大电流至60mA
软件设置上电默认显示状态(不亮灯、22%白光、100%白光、22%蓝光)
数据总线写地址,控制器至第一灯点需接A/B数据总线,无需接地址线
写地址成功后亮绿灯,可在线退出写地址状态,灯具无需重新上电
OUTR/G/B/W输出端口耐压26V
内置电源稳压电路,外部电源范围:5V~24V
SPWM灰度等级65536级
SPWM控制OUT输出极性选择,接高电平(默认)时输出正常,接低电平时输出反相
兼容并扩展DMX512(1990)信号协议
信号传输速率:250Kbps~750kbps
内置EEPROM,最大支持4096通道寻址
信号传输方式,双线差分并联
内置485解码模块,抗干扰能力强,传输距离远
具有1/3/4通道选择功能
封装形式:SOP16
三.应用范围
室内LED装饰照明
建筑LED外观/情景照明
洗墙灯、窗帘屏
穿孔字、护栏管
四.技术规格书(产品PDF)
需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
》并联方式LED景观照明驱动系列 |
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IC Name |
Singal Lines |
Singal Protocol |
Address Setting Method |
EEPROM |
CHs |
Current Setting |
IACC |
Cascade Number |
Package |
1 |
DMX512 |
Automatic Coding |
Internal EEPROM |
4 |
Constant Current(Default 17mA) |
256 |
1024 |
SOP8 SSOP10 SOP16 |
|
2 |
DMX512 |
Automatic Coding |
Internal EEPROM |
4 |
Constant Current(Default 17mA) |
256 |
1024 |
SSOP10 SOP16 |
|
2 |
DMX512 |
Automatic Coding |
Internal EEPROM |
4 |
TTL |
65536 |
1024 |
SOP16 |
|
1 |
DMX512 |
Automatic Coding |
Internal EEPROM |
4 |
TTL |
65536 |
1024 |
SOP16 |
|
2 |
DMX512 |
Automatic Coding |
Internal EEPROM |
4 |
Constant Current(Default 17mA) |
65536 |
1024 |
SOP16 |
|
1 |
DMX512 |
Automatic Coding |
Internal EEPROM |
4 |
Constant Current(Default 17mA |
65536 |
1024 |
SOP16 |