限流1A的电源开关芯片1 Amp Current Limited Load Switch CXES4292是一款以PMOS功率管作为开关管的电源开关芯片。当超载发生时，CXES4292将输出电流调整到用户设定的值以防止负载损坏。在不同的应用环境下，可通过调节SET端的电阻值来控制限流电流的大小。典型条件下，静态电流低至8μA，关断电流0.1μA，适宜于手持便携设备中使用

   产品概述 返回TOP0ru嘉泰姆

     CXES4292是一款以PMOS功率管作为开关管的电源开关芯片。当超载发生时，CXES4292将输出电流调整到用户设定的值以防止负载损坏。在不同的应用环境下，可通过调节SET端的电阻值来控制限流电流的大小。典型条件下，静态电流低至8μA，关断电流0.1μA，适宜于手持便携设备中使用。另外，CXES4292还具有过温保护关断和欠压保护关断功能，以保证芯片的可靠性。The CXES4291/CXES4292 are Current Limited P-channel MOSFET power switches designed for high-side loadswitching applications. The internal current-limiting circuit protects the input supply against large output short circuit current which may cause the supply to fall out of regulation. The current limit threshold is programmed with an external resistor from SET Pin to ground. The quiescent supply current is typically 8μA, making the device ideal for portable battery-operated equipment. In shutdown mode, the supply current decreases to less than 0.1μA. Additional features include thermal shutdown to prevent catastrophic switch failure from high current loads, under-voltage lockout (UVLO) to ensure that the device remains off unless there is a valid input voltage present. The CXES4291/CXES4292 are available in 5 pin SOT-23 packages.

   产品特点 返回TOP0ru嘉泰姆

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• 输入电压范围2.4V～5.5V0ru嘉泰姆

• 限流电流阈值可调</p>

• 响应速度快</p>

• 低静态电流</p>

-正常模式为8μA0ru嘉泰姆

-关断模式最大1μA0ru嘉泰姆

• 典型115 mΩ 导通电阻</p>

• 欠压保护功能0ru嘉泰姆

• 过温保护功能0ru嘉泰姆

• ESD过4kV0ru嘉泰姆

• 采用5-pin SOT23封装0ru嘉泰姆

• 符合RoHS规范及Pb-Free0ru嘉泰姆

z 2.4V to 5.5V Input voltage range 0ru嘉泰姆

z Programmable Over Current Threshold 0ru嘉泰姆

z Fast Transient Response: 0ru嘉泰姆

z Low Quiescent Current 0ru嘉泰姆

- 8μA Normal Operation 0ru嘉泰姆

- 1μA Max in Shutdown 0ru嘉泰姆

z 115mΩ typical RDS(ON) 0ru嘉泰姆

z Only 1.8V needed for ON/OFF Control 0ru嘉泰姆

- CXES4291 ENB Active Low 0ru嘉泰姆

- CXES4292 EN Active High 0ru嘉泰姆

z Under-Voltage Lockout 0ru嘉泰姆

z Thermal Shutdown 0ru嘉泰姆

z 4kV ESD Protection 0ru嘉泰姆

z Available in SOT23-5 Package 0ru嘉泰姆

z RoHS Compliant and 100% Lead(Pb)-Free0ru嘉泰姆

   应用范围 返回TOP0ru嘉泰姆

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• 外围端口0ru嘉泰姆

• 笔记本计算机0ru嘉泰姆

• 数码相机，数码摄像机和掌上计算机0ru嘉泰姆

• 热插拔开关</p>

z Peripheral ports 0ru嘉泰姆

z Notebook computers 0ru嘉泰姆

z Personal communication devices 0ru嘉泰姆

z Hot swap supplies0ru嘉泰姆

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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</span>！</span>
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