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。
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[ CXUS7702 ]"
目录
产品概述 返回TOP
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TOP
Adjustable Current Limiting up to 3.5A
Built-In (Typically 70mΩ) N-MOSFET
Reverse Current Flow Blocking (no body diode)
Output Can Be Forced Higher than Input (Off or On State)
Low Supply Current :
--------40μA Typical at Switch on State
--------Less than 1μA Typical at Switch Off State
Guaranteed Continuous Load Current
-------CXUS7702MR(SOT23-5):2.1A
-------CXUS7702S(SOP-8) :3A
Wide Input Voltage Ranges : 2V to 5.5V
Open-Drain Fault Flag Output
Hot Plug-In Application (Soft-Start)
1.7V Typical Under-Voltage Lockout (UVLO)
Thermal Shutdown Protection
Smallest SOT23-5 and SOP-8 Package
RoHS Compliant and 100% Lead (Pb)-Free
应用范围 返回TOP
USB 3G Datacard
USB Dongle
MiniPCI Accessories
LCD Monitor, LCD-TV
USB Power Module for ADSL
Information Appliance and Set-Top Box
Battery-Powered Equipment
Hot-Plug Power Supplies
ACPI Power Distribution
PCI Bus Power Switching
Motherboard & Notebook PCs
PC Card Hot Swap Application
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产品封装图 返回TOP
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USB限流开关IC |
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型号 |
工作电压 |
电流限制 |
静态电流 |
截止电流 |
内阻 |
欠压锁 定电压 |
抗静电 电压 |
响应时间 |
封装 |
2.4V-5.5V |
1A可调 |
15uA |
1uA |
80 mohm |
1.8V |
2 KV |
2 uS |
SOT-25 |
|
2.0V-6.5V |
2.1A可调 |
40uA |
1uA |
70 mohm |
1.7V |
8 KV |
4.6 mS |
SOT-25 |
|
2.2V-6.0V |
1.1A |
23uA |
0.1uA |
100 mohm |
1.8V |
6KV |
400 uS |
SOT-25 |
|
2.2V-6.0V |
1.5A |
23uA |
0.1uA |
50 mohm |
1.8V |
6KV |
400 uS |
SOT-25 |
|
2.5V-5.5V |
2.1A/1.0A/0.65A |
25uA |
0.1uA |
80 mohm |
1.7V |
4 KV |
400 uS |
SOT-25 |
|
2.5V-5.5V |
2.1A |
25uA |
0.1uA |
80 mohm |
1.7V |
4 KV |
400 uS |
SOT-25 |
|
2.0V-5.5V |
0.8A |
50uA |
0.5uA |
200 mohm |
1.7V |
8 KV |
4.6 mS |
SOT-25 |