CXES4295是一款低漏失，将PMOS集成于IC内部的线性开关，它具有开/关控制功能和输出电流保护功能.应用时，将CXES4295连接至降压DC/DC的输出端，CXES4295的使能引脚控制每路开/关以最大效率的传递电压。因此，CXES4295能延长电池的寿命和工作时间。CXES4295的功能包括了电流限制保护电路，不需要在芯片外部增加额外的电阻和MOSFET来实现此功能。外部可编程软启保证了正确的启动时序，以防止输入电流在启动过程中的过冲。当EN引脚为低电压时，IC进入关断模式。此时，即使芯片的输出端连接容性负载，电容负载上存储的电荷也会被内部的放电开关快速放电至地，从而，输出VOUT的电压也会快速下降到地。CXES4295包括了过热保护功能
‧3.3V到13.5V的输入电压范围
‧100mΩ的导通电阻
‧120uA的静态电流
‧小于4uA的低关断电流
‧开/关控制功能
‧外部可编程电流软启
‧高速自动放电功能
‧工作温度范围：-40℃～+85℃
‧2.35A的输出电流限制
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[ CXES4295 ]"
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产品概述 返回TOP
CXES4295是一款低漏失，将PMOS集成于IC内部的线性开关，它具有开/关控制功能和输出电流保护功能.应用时，将CXES4295连接至降压DC/DC的输出端，CXES4295的使能引脚控制每路开/关以最大效率的传递电压。因此，CXES4295能延长电池的寿命和工作时间。CXES4295的功能包括了电流限制保护电路，不需要在芯片外部增加额外的电阻和MOSFET来实现此功能。外部可编程软启保证了正确的启动时序，以防止输入电流在启动过程中的过冲。当EN引脚为低电压时，IC进入关断模式。此时，即使芯片的输出端连接容性负载，电容负载上存储的电荷也会被内部的放电开关快速放电至地，从而，输出VOUT的电压也会快速下降到地。CXES4295包括了过热保护功能。The CXES4295 is a low dropout line switch IC with ON/OFF control and output current protection which integrates a P-channel MOSFET. By connecting the CXES4295 to the output pin of a step-down DC/DC converter, the EN pin controls ON/OFF for each distribution switch to deliver power per requirements and maximize total power efficiency. As a result, the CXES4295 helps to extend battery life and product operation time. The CXES4295 contains a current limit protection circuit so these are not required externally unlike discrete circuit solutions where MOSFETs and resistors are used. Externally programmable soft-start allows for proper power on sequencing with respect to other power supplies and avoids input inrush current during startup. When a low signal is input to the EN pin, the IC enters shutdown mode. Even where a load capacitor is connected to the output pin during shutdown, the electric charge stored at the load capacitor is discharged through the internal switch. As a result, the VOUT pin voltage falls quickly to the GND level. The CXES4295contains thermal shutdown protection.
产品特点 返回TOP
‧3.3V到13.5V的输入电压范围
‧100mΩ的导通电阻
‧120uA的静态电流
‧小于4uA的低关断电流
‧开/关控制功能
‧外部可编程电流软启
‧高速自动放电功能
‧工作温度范围：-40℃～+85℃
‧2.35A的输出电流限制
‧过温关断
‧符合RoHS标准，100%无铅和无卤素
3.3V to 13.5V Input Voltage Range
110m On Resistance
Low 90μA Quiescent Current
Low Shutdown Current：<4μA
ON/OFF Control Function
Externally Programmable Current Soft-Start
High Speed Auto Discharge Function
Operating Temperature Range: -40°C ~+85°C
2.35A Output Current Limit
Thermal Shutdown
RoHS Compliant and 100% Lead (Fb)-Free
Halogen-Free
应用范围 返回TOP
‧便携式设备
‧膝上型、掌上型和笔记本计算机
‧LCD电视机显示器
Portable Equipment
Laptop, Palmtops, Notebook Computers
LCD Monitor TV
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产品封装图 返回TOP
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功率开关 > 负载开关 |
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|
Part Number |
remark |
Channel |
Vin (V) |
RDS(ON) |
ILMT |
Enable |
Fault Flag |
IQ (A) |
Package |
|
1.5A Line Switch with Low On-Resistance |
1 |
1.4~5.5 |
80mΩ |
2A |
Active High |
No |
70μA |
TDFN-6,WCSP-6 |
|
|
current Limited High Side Load Switch |
1 |
2.4 ~ 5.5 |
150mΩ |
1.5A |
Active Low |
Yes |
9μ |
SOT23-5 |
|
|
1 Amp Current Limited Load Switch |
1 |
2.4 ~ 5.5 |
150mΩ |
1.5A |
Active Low |
Yes |
9μ |
SOT23-5 |
|
|
1.5A Line Switch with Low On-Resistance |
1 |
2.5~5.5 |
100mΩ |
2A |
Active High |
No |
70μA |
SOT23-5 |
|
|
Dual 1.5A Line Switch with Low On-Resistance |
2 |
2.5~5.5 |
100mΩ |
2A |
Active High |
No |
70μA |
TDFN-10 |
|
|
1.8A Line Switch with Low On-Resistance |
1 |
3.3~13.5 |
100mΩ |
2.35A |
Active High |
No |
120μA |
SOT23-5 |
|
