Cxac85213 is a high-precision step-down LED constant current driver chip. The chip works in the critical continuous mode of inductive current, and is suitable for the non isolated step-down LED constant current power supply with ac176v ~ ac265v full range input voltage. The cxac85213 chip is internally integrated with 500V power switch, which adopts the drive and current detection methods. The working current of the chip is very low. Without auxiliary winding detection and power supply, only a few peripheral components are needed to achieve excellent constant current characteristics, which greatly saves the system cost and volume. The cxac85213 chip has a high-precision current sampling circuit, and adopts constant current control technology to achieve high-precision LED constant current output and excellent line voltage regulation rate
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[ CXAC85213 ]"
目录
7.相关产品
产品概述 返回TOP
CXAC85213 是一款高精度降压型LED 恒流驱动芯片。芯片工作在电感电流临界连续模式，适用于AC176V~AC265V 全范围输入电压的非隔离降压型LED 恒流电源。CXAC85213 芯片内部集成500V 功率开关，采用驱动和电流检测方式，芯片的工作电流极低， 无需辅助绕组检测和供电，只需要很少的外围元件，即可实现优异的恒流特性，极大的节约了系统成本和体积。CXAC85213 芯片内带有高精度的电流采样电路，同时采用了恒流控制技术，实现高精度的LED 恒流输出和优异的线电压调整率。芯片工作在电感电流临界模式，输出电流不随电感量和LED 工作电压的变化而变化，实现优异的负载调整率。CXAC85213 具有多重保护功能，包括LED 开路/短路保护，CS 电阻短路保护，欠压保护，芯片温度过热调节等。
产品特点 返回TOP
• 电感电流临界连续模式
• 内部集成500V 功率管
• 无需辅助绕组检测和供电
• 芯片超低工作电流
• 宽输入电压
• ±3% LED 输出电流精度
• LED 开路保护
• LED 短路保护
• CS 电阻短路保护
• 芯片供电欠压保护
• 过热调节功能
• 采用DIP-8 封装
应用范围 返回TOP
主要应用在吸顶灯、厨卫灯、蜡烛灯、球泡灯、T类型灯管等。
技术规格书（产品PDF) 返回TOP
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！
产品封装图 返回TOP
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电路原理图 返回TOP
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相关芯片选择指南 返回TOP 更多同类产品.....
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电源管理>AC / DC |
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型号 |
频率抖 动范围 |
输出功率 |
工作模式 |
工作频率 |
驱动方式 |
内置MOS 耐压 |
封装外形 |
|
4% |
18V 150mA |
非隔离恒压 |
60KHz |
内置MOS |
730V |
SOP8 |
|
|
4% |
12V 200mA |
非隔离恒压 |
60KHz |
内置MOS |
730V |
SOP8 |
|
|
一 |
24W以内 |
原边 |
＜120KHz |
外挂MOS |
一 |
SOT23-6 |
|
|
6% |
5W |
副边 |
132KHz |
内置MOS |
700V |
DIP8/SOP8 |
|
|
一 |
30W以内 |
非隔离恒流 |
＜70KHz |
内置MOS |
500V |
SOP8/DIP8 |
|
|
一 |
18W以内 |
非隔离恒流 |
＜70KHz |
内置MOS |
500V |
SOP8 |
|
|
4% |
18V250mA |
非隔离恒压 |
60KHz |
内置MOS |
730V |
DIP8 |
|
|
4% |
12V250mA |
非隔离恒压 |
60KHz |
内置MOS管 |
730V |
DIP8、TO252-2 |
|
|
4% |
18V/12V250mA |
非隔离恒压 |
60KHz |
内置MOS |
730V |
DIP8 |
|
|
±6% |
— |
PWM |
67KHz |
外置MOS |
— |
SOP8/DIP8 |
|
|
±6% |
— |
PWM |
150KHz |
外置MOS |
— |
SOP8/DIP8 |
|
|
±6% |
— |
PSR |
50KHz |
外置MOS |
— |
SOT23-6 |
|
|
±6% |
12W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
15W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
5W |
PWM |
67KHz |
内置MOS |
650V |
SOP8 |
|
|
±6% |
8W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
18W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
21W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
12W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
15W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
8W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
18W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
21W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
12W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
15W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
8W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
18W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
21W |
PWM |
67KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
10W |
PSR |
50KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
12W |
PSR |
50KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
5W |
PSR |
50KHz |
内置MOS |
650V |
SOP8 |
|
|
±6% |
8W |
PSR |
50KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
15W |
PSR |
50KHz |
内置MOS |
650V |
DIP8 |
|
|
±6% |
18W |
PSR |
50KHz |
内置MOS |
650V |
DIP8 |
|
