CXAS42290 CXAS42290-1 CXAS42290-2是针对通用串行总线（USB）和其他热插拔应用程序优化的单通道限流电源开关。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
[ CXAS42290 ]
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产品概述 返回TOP
产品特点 返回TOP
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
Set-Top Boxes
LCD TVs & Monitors
Residential Gateways
Laptops, Desktops, Servers, e-books, Printers, Docking
Stations, HUBs
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产品封装图 返回TOP
a
电路原理图 返回TOP
| 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 |
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