Cxac8561 integrates ultra-low standby power quasi resonant primary side controller and built-in 650V high avalanche power MOSFET, which is used for charger, adapter and built-in power supply with high performance and simplified peripheral components.
Cxac8561 is the original side feedback mode, and optocoupler and TL431 can be omitted. The no-load loss (230VAC) of the chip is less than 30MW. In constant voltage mode, quasi resonant and multi-mode technology are used to improve efficiency and eliminate audio noise, so that the system can meet the 6-level energy efficiency standard. The adjustable output line compensation function makes the system obtain better load adjustment rate. In constant current mode, the output current and output power can be adjusted by RS resistance of CS pin. The chip provides a comprehensive protection function, including cycle by cycle over-current protection, over-voltage protection, open-loop protection, over temperature protection, output short-circuit protection and CS open / short-circuit protection
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[ CXAC8561 ]"
目录
产品概述 返回TOP
CXAC8561集成超低待机功耗准谐振原边控制器及内置650V高雪崩能力的功率MOSFET，用于高性能、外围元器件精简的充电器、适配器和内置电源。CXAC8561为原边反馈工作模式，可省略光耦和TL431。可实现芯片空载损耗（230VAC)小于30mW.在恒压模式，采用准谐振与多模式技术提高效率并消除音频噪声，使得系统满足6级能效标准。可调输出线补偿功能使系统获得较好的负载调整率。在恒流模式，输出电流和输出功率可通过CS脚的Rs电阻进行调节。该芯片采用提供了极为全面 的全面的保护功能，包含逐周期过流保护、过压保护、开环保护、过温保护、输出短路保护和CS开/短 路保护等
产品特点 返回TOP
.内置650V高雪崩能力的功率MOSFET
.内置高压启动电路，小于30mW空载损耗（230VAC)
.采用准谐振与多模式技术提高效率,满足6级能效标准
.全电压输入范围5%的CC/CV精度
.原边反馈和调节可省光耦和TL431
.恒压、恒流补偿电容
.智能保护功能
.过温保护 (OTP)
.VDD欠压锁定 (UVLO)
.逐周期过流保护 (OCP)
.开环保护 (OLP)
.VDD过压保护 (OVP)
.CS开/短路保护
应用范围 返回TOP
.开关电源适配器
.电池充电器
.机顶盒电源
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
电路原理图 返回TOP
相关芯片选择指南 返回TOP
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AC-DC(PSR)原边反馈PSR交直流转换器 |
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Product |
Standby Power |
SW Voltage |
VDD Operation Voltage |
Output Power |
CC/CV Precision |
Frequency |
Package |
Note |
|
0~650V |
<50mW |
13Ω |
9~26V |
5W |
±3% |
SOP8 |
Charger/LED |
|
|
0~650V |
<50mW |
8Ω |
9~26V |
6W |
±3% |
SOP8 |
Charger/LED |
|
|
0~650V |
<50mW |
4.5Ω |
9~26V |
8W |
±3% |
SOP7 |
Charger/LED |
|
|
0~650V |
<50mW |
3.6Ω |
9~26V |
12W |
±3% |
DIP8/SOP7 |
Charger/LED |
|
|
0~650V |
<50mW |
2.5Ω |
9~26V |
15W |
±3% |
DIP8/SOP7 |
Charger/LED |
|
|
0~650V |
<30mW |
18Ω |
9~30V |
6W |
±3% |
SOP7 |
SOP7 |
|
|
0~650V |
<30mW |
4.5Ω |
9~30V |
8W |
±3% |
SOP7 |
Charger/Adaptor |
|
|
0~650V |
<30mW |
2.5Ω |
9~30V |
18W |
±3% |
DIP8/SOP7 |
Charger/Adaptor |
|
|
0~800V |
<30mW |
2.5Ω |
9~30V |
15W |
±3% |
DIP8 |
Charger/Adaptor |
|
|
0~650V |
<30mW |
1.6Ω |
9~30V |
18W |
±3% |
DIP8 |
Charger/Adaptor |
|
|
Product |
Driver |
Standby Power |
Start-up Current |
VDD Operation Voltage |
Output Power |
CC/CV precision |
Package |
Note |
|
BJT |
<50mW |
5uA |
8~26V |
<15W |
±5% |
SOT23-6 |
Charger/LED |
|
|
MOS |
<100mW |
5uA |
10~26V |
<15W |
±5% |
SOT23-6 |
Charger/LED |
|
|
BJT |
<100mW |
5uA |
8~26V |
<15W |
±5% |
SOT23-5 |
Charger/LED |
|
|
MOS |
<100mW |
5uA |
8~26V |
<15W |
±5% |
SOT23-6 |
Charger/LED |
|
