CXUS7702

CXUS7702是一款低电压、高性能的单N-MOSFET功率开关,专为具有低RDS(on)≈70mΩ和全保护功能的电源轨开/关控制而设计。CXUS7702配有一个电荷泵电路,用于驱动内部MOSFET开关和一个标志输出,用于指示针对大di/dt的故障情况,这可能导致电源失去调节。为了适应不同的应用,提供了一个ISET引脚来设置电流限制点,一个ISET到接地的电阻来设置开关的电流限制。附加功能包括软启动以限制插入期间的涌入电流,热关机以防止大电流负载导致灾难性开关故障,输出防回流保护(无论EN-pin连接的是GND还是VIN),欠压锁定(UVLO)确保设备保持关闭,除非存在有效的输入电压,精密电阻可编程输出电流限制高达3.5A。此外,较低的静态电流为40μa,使该设备成为便携式电池操作设备的理想选择。

CXUS7702可调电流限制3.5A低电压高性能的单N-MOSFET功率开关全保护功能的电源轨开关控制电荷泵电路热插拔应用软启动

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   产品概述 返回TOPIIO嘉泰姆


The CXUS7702 is a low voltage, high performance single N-MOSFET power switch, designed for power rail on/off control with low RDS(ON)≈70mΩ and full protection functions. The CXUS7702 equipped with a charge pump circuitry to drive the internal MOSFET switch and a flag output is available to indicate fault conditions against large di/dt which may cause the supply to fall out of regulation. In order to fit different application, an ISET pin is offered for current limit point setting, a resistor from ISET to ground sets the current limit for the switch. Additional features include soft-start to limit inrush current during plug-in, thermal shutdown to prevent catastrophic switch failure from high-current loads, Output anti back irrigation Protection whether EN pin is connected GND or VIN, under-voltage lockout (UVLO) to ensure that the device remains off unless there is a valid input voltage present, a precision resistor-programmable output current limit up to 3.5A. Besides, the lower quiescent current as 40μA making this device ideal for portable battery-operated equipment. 

The CXUS7702 is available in SOT23-5 or SOP-8 package requiring minimum board space and smallest components.

   产品特点 返回TOPIIO嘉泰姆


 Adjustable Current Limiting up to 3.5A IIO嘉泰姆

 Built-In (Typically 70mΩ) N-MOSFET IIO嘉泰姆

 Reverse Current Flow Blocking (no body diode) IIO嘉泰姆

 Output Can Be Forced Higher than Input (Off or On State) IIO嘉泰姆

 Low Supply Current : IIO嘉泰姆

--------40μA Typical at Switch on StateIIO嘉泰姆

 --------Less than 1μA Typical at Switch Off State IIO嘉泰姆

 Guaranteed Continuous Load Current IIO嘉泰姆

-------CXUS7702MR(SOT23-5):2.1A IIO嘉泰姆

-------CXUS7702S(SOP-8) :3A IIO嘉泰姆

 Wide Input Voltage Ranges : 2V to 5.5V IIO嘉泰姆

 Open-Drain Fault Flag Output IIO嘉泰姆

 Hot Plug-In Application (Soft-Start) IIO嘉泰姆

 1.7V Typical Under-Voltage Lockout (UVLO) IIO嘉泰姆

 Thermal Shutdown Protection IIO嘉泰姆

 Smallest SOT23-5 and SOP-8 Package IIO嘉泰姆

 RoHS Compliant and 100% Lead (Pb)-FreeIIO嘉泰姆

   应用范围 返回TOPIIO嘉泰姆


 USB 3G Datacard IIO嘉泰姆

 USB Dongle IIO嘉泰姆

 MiniPCI Accessories IIO嘉泰姆

 LCD Monitor, LCD-TV IIO嘉泰姆

 USB Power Module for ADSL IIO嘉泰姆

 Information Appliance and Set-Top Box IIO嘉泰姆

 Battery-Powered Equipment IIO嘉泰姆

 Hot-Plug Power Supplies IIO嘉泰姆

 ACPI Power Distribution IIO嘉泰姆

 PCI Bus Power Switching IIO嘉泰姆

 Motherboard & Notebook PCs IIO嘉泰姆

 PC Card Hot Swap ApplicationIIO嘉泰姆

   技术规格书(产品PDF) 返回TOP IIO嘉泰姆


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产品封装图 返回TOPIIO嘉泰姆


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电路原理图 返回TOPIIO嘉泰姆


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◀ 上一篇:CXUS7701H/L智能开关限流P沟道MOSFET功率开关2.4V到5.5V的输入高压侧负载开关可编程过电流阈值快速瞬态响应防止热过载限制功耗连接温度

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下一篇▶:CXUS7703CB USB供电电源开关电路内置电荷泵升压来驱动NMOS功率管软启电路过热短路保护1.1A过流保护电路100mΩ导通内阻