CXAS42290A单通道限流电源开关对通用串行总线（USB）和其他热插拔应用50mΩ集成N-MOSFET开关精确电流限制过电流输出过电压和热保护

CXAS42290A CXAS42290A-1 CXAS42290A-2是一款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 CXAS42290A CXAS42290A-1 CXAS42290A-2 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. CXAS42290A CXAS42290A-1 CXAS42290A-2 offers SOT23-5 package.

   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