CXAS42288单通道限流电源开关针对通用串行总线（USB）和其他热插拔应用程序进行了优化控制上升和下降时间以在开关过程中最小化电流过冲或过冲50mΩ集成N-MOSFET开关精确电流限制

CXAS42288CXAS42288A是一个单通道限流电源开关，针对通用串行总线（USB）和其他热插拔应用程序进行了优化。控制上升和下降时间，以在开关过程中最小化电流过冲或过冲。该装置具有快速的短路响应时间，提高了系统的整体鲁棒性。它提供了完整的保护方案，如过电流保护、过温保护和短路保护，以及可控上升时间和欠压闭锁功能。开路漏极标志输出上的7.5ms故障消除时间可防止错误的过电流报告。
50mΩ集成N-MOSFET开关
精确电流限制

FLG：有效低

过流期间的恒定电流
快速短路响应时间：2μs（典型值）
工作范围：2.7V-5.5V
内置软启动，典型上升时间为3ms

过电流、输出过电压和热保护

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）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

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The CXAS42288 CXAS42288A is a single channel current-limited power switch optimized for Universal Serial Bus (USB) and other hot-swap applications. The rise and fall times are controlled to minimize current overshoot or undershoot during switches on/off. The device has fast short-circuit response time for improved overall system robustness. It provides a complete protection solution, such as over-current protection, over-temperature protection and short-circuit protection, as well as controlled rise time and under-voltage lockout function. A7.5ms de-glitch time on the open-drain Flag output prevents false over-current reporting. CXAS42288 CXAS42288A offers SOT23-5 package.CXAS42288 CXAS42288A offers both DFN2X2-6 and SOT23-6 packages.

   产品特点 返回TOP

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50mΩ Integrated N-MOSFET Switch 

Accurate Current Limit 

FLG: active low 

Constant-Current During Over-Current 

Fast Short-Circuit Response Time: 2μs (typ.) 

Operating Range: 2.7V - 5.5V 

Built-in Soft-Start with 3ms Typical Rise Time 

Over-Current, Output Over-Voltage and Thermal Protection 

Fault Report (FAULT) with De-glitch Time 

UL Recognized, File Number E497605 

IEC Recognized, File Number DK-69902-UL 

ESD Protection: 2kV HBM, 500V CDM 

Available in SOT23-5, SOT23-6 and DFN2X2-6Packages

   应用范围 返回TOP

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Set-Top Boxes 

LCD TVs & Monitors 

Residential Gateways 

Laptops, Desktops, Servers, e-books, Printers, Docking 

Stations, HUBs

   技术规格书（产品PDF) 返回TOP 

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     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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负载开关
P/N	Vin Min	Vin Max	输出电流	静态电流	软启动	启动	过流保护	封装
	( V )	( V )	( A )	( uA )
CXAS42287	2.5	5.5	Dual-Channel   6A	80	External	Active   High	N	DFN3×2-14
CXAS42288	2.7	5.5	Adjustable	100	Internal	Active   High	Y	SOT23-6
CXAS42288A	2.7	5.5	Adjustable	100	Internal	Active   Low	Y	SOT23-6  DFN2×2-6
CXAS42289	2.7	5.5	2.5	100	Internal	Active   High	Y	SOT23-5  DFN2×2-6
CXAS42289A	2.7	5.5	2.5	100	Internal	Active   Low	Y	SOT23-5
CXAS42290	2.7	5.5	3	80	Internal	Active   High	Y	SOT23-5
CXAS42290-1	2.7	5.5	1	80	Internal	Active   High	Y	SOT23-5
CXAS42290-2	2.7	5.5	2	80	Internal	Active   High	Y	SOT23-5
CXAS42290A	2.7	5.5	3	80	Internal	Active   Low	Y	SOT23-5
CXAS42290A-1	2.7	5.5	1	80	Internal	Active   Low	Y	SOT23-5
CXAS42290A-2	2.7	5.5	2	80	Internal	Active   Low	Y	SOT23-5