Cxac85214 is a constant current power supply chip specially used for LED driving lighting, which is suitable for non isolated step-down constant current power supply scheme with full voltage input range (ac176v ~ ac265v). Built in high-precision current regulation module, integrated with high-precision constant current output module and line voltage regulation module, the output current of the whole power scheme does not change with the change of inductance and led working voltage. A 500V high performance power transistor is integrated in the chip, and the current detection current is used to ensure the chip's power consumption is very low. The chip has very few peripheral components, which greatly reduces the design difficulty and system volume, and greatly reduces the production cost for customers.
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[ CXAC85214 ]"
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7.相关产品
产品概述 返回TOP
CXAC85214是专用于LED 驱动照明的恒流电源芯片，适用于全电压输入范围（AC176V~AC265V）的非隔离降压型恒流电源方案。内置高精度电流调节模块，集成高精度恒流输出模块和线电压调整模块，实现整机电源方案输出电流不随电感量和LED 工作电压的变化而变化。芯片内集成一颗500V高性能功率管，采用电流检测电流保证芯片的功耗极低。本芯片外围元件非常少，很大程度上降低了设计难度和减少系统体积，为客户大在降低生产成本。本芯片安全可靠，自带输出开路保护和短路保护，CS 电阻短路保护，欠压保护以及芯片温度过热调节等等多重保护功能，最大限度保证用户安全，广泛应用于LED照明领域。本产品性能优良，质量可靠。
产品特点 返回TOP
• 电感电流临界连续模式
• LED 输出±5%精度电流
• 不需辅助绕组检测和供电
• 芯片工作电流超低
• 输入电压宽
• 内部内置500V 功率管
• LED 开路/短路保护
• 芯片欠压供电保护
• CS 电阻短路保护
• 过热自主调节功能
• 封装形式： SOP8
应用范围 返回TOP
主要应用吸顶灯、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 |
|
