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CXLE8289降压恒流LED驱动器2.5V到6.0V的输入电压内部电源开关和同步整流器高效率1A降压1-5W白光LED驱动器输入与输出断开
| 产品型号： | CXLE8289 |
| 产品类型： | 照明驱动 |
| 产品系列： | 降压恒流LED驱动 |
| 产品状态： | 量产 |
| 浏览次数： | 63 次 |
产品简介
•效率高达93%
•180μA（典型）静态电流
•输出电流：高达1A
•内部同步整流器
•1.5MHz开关频率
•软启动
•欠压锁定
•短LED保护
•开放式LED保护
•热关机
技术参数
| 输入电压范围 (VIN) | ≤ 2.5V ~ 6VV |
|---|---|
| 输出电压 (VOUT) | adj |
| 输出电流 (IOUT) | 1A |
| 工作频率 | 1MHZ |
| 转换效率 | 90% |
| 封装类型 | SOT23-6 |
| Dimming method | PFM |
| 功率管 | 内置MOS |
| 功耗 | 10μA |
| Thd | ±3% |
| Power | 1-5W |
| Pf value | >0.9 |
| Topology | 降压恒流LED驱动 |
| Application | 照明驱动 |
| Topology type | 升压型 |
| Ripple | <5% |
| Operating temp | -40℃~85℃ |
| Protection | OVP/OCP/短路保护 |
| Certification | UL/CE |
产品详细介绍
目录
7.相关产品
产品概述 返回TOP
The CXLE8289 is a step-down constant current LED driver. When the input voltage down to lower than LED forward voltage, then CXLE8289 run into LDO mode.The CXLE8289 supports a range of input voltages from 2.5V to 6.0V,allowing the use of a single Li+/Li-polymer cell, 3AA or 4AA cell, USB,and other standard power sources.The FB voltage is only 0.1V to achieve high efficiency.CXLE8289 employ internal power switch and synchronous rectifier to minimize external part count and realize high efficiency.During shutdown, the input is disconnected from the output and the shutdown current is less than 1μA. Other key features include under voltage lockout to prevent deep battery discharge of the Li+ battery.
CXLE8289是一款高效率1A降压1-5W白光LED驱动器。当输入电压下降到LED的正向电压，CXLE8289运行到LDO模式.CXLE8289支持从2.5V-6.0V输入电压范围内,让单节锂离子电池,3AA或4AA电池,USB和其他标准电源使用.实现高效率FB电压只有0.1V.
产品特点 返回TOP
• Efficiency up to 93%
• 180μA(typ) Quiescent Current
• Output Current: Up to 1A
• Internal Synchronous Rectifier
• 1.5MHz Switching Frequency
• Soft-Start
• Under-Voltage Lockout
• Short LED Protection
• Open LED Protection
• Thermal Shutdown
• 5-Pin Small TSOT25 Packages
• Pb-Free Package
应用范围 返回TOP
• 3AA or 4AA Batteries Powered Flashlight
• 1 Cell Li-Ion Battery Powered Flashlight
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 更多同类产品。。。。。
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LED驱动芯片 |
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型号 |
输入电压 |
最大输出电流 |
高效率 |
最大工作频率 |
封装 |
|
12V-85V |
850MA |
92% |
1MHz |
ESOP-8/PP |
|
|
0.8~5.5V |
0.3W-7W |
90% |
1MHz |
SOT-23-6L |
|
|
3~24V |
90% |
1.20MHz |
SOT23-6 |
||
|
2.6V~7.0V |
100mA |
90% |
1.20MHz |
SOP8 |
|
|
6V~40V， |
1A |
97.50% |
1MH |
SOT89-5 |
|
|
2.5V ~5V |
1-5W |
92% |
SOT23-6 |
||
|
2.5V ~ 6V |
1A |
90% |
SOT23-6 |
||
|
7.2V~19V |
20W |
90% |
SOT23-6 |
||
|
1.8－3.6V |
3W |
90% |
1MHZ |
SOT23-6 |
|
|
6-40V |
1A |
97% |
1MHz |
SOT89-5 |
|
|
2.7-6V |
3.0Ａ |
97% |
1MHz |
SOT-89-5 |
|
|
8V~600V |
1A |
90% |
1MHz |
SOP8 |
|
|
8V~32V |
1A |
97% |
1MHz |
SOT89-5L |
|
|
2.7V~4.8V |
1W,3W |
97% |
全亮，25%亮度，暴闪 |
SOT23-6 |
|
|
2.8V~5V |
250mA |
97% |
1.20MHz |
SOT23 |
|
|
2.5V~24V |
10MA~1安 |
90% |
2.5MHz |
SOT23-6 |
|
|
7.2V~19V |
20W |
97% |
1MHz |
SOT23-6 |
|
|
2.7V~4.8V |
1W,3W |
90% |
1MHz |
SOT23-6 |
|
|
ON/OFF模式3段调光模式无级调光模式 |
SOP-8/SOT23-6 |
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