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 输入电压范围2.4V～5.5V
• 限流电流阈值可调
• 响应速度快
• 低静态电流
-正常模式为8μA
-关断模式最大1μA
• 典型115 mΩ 导通电阻
• 欠压保护功能
• 过温保护功能
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[ CXES4292 ]
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产品概述 返回TOP
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TOP
• 输入电压范围2.4V～5.5V
• 限流电流阈值可调
• 响应速度快
• 低静态电流
-正常模式为8μA
-关断模式最大1μA
• 典型115 mΩ 导通电阻
• 欠压保护功能
• 过温保护功能
• ESD过4kV
• 采用5-pin SOT23封装
• 符合RoHS规范及Pb-Free
z 2.4V to 5.5V Input voltage range
z Programmable Over Current Threshold
z Fast Transient Response:
z Low Quiescent Current
- 8μA Normal Operation
- 1μA Max in Shutdown
z 115mΩ typical RDS(ON)
z Only 1.8V needed for ON/OFF Control
- CXES4291 ENB Active Low
- CXES4292 EN Active High
z Under-Voltage Lockout
z Thermal Shutdown
z 4kV ESD Protection
z Available in SOT23-5 Package
z RoHS Compliant and 100% Lead(Pb)-Free
应用范围 返回TOP
• 外围端口
• 笔记本计算机
• 数码相机，数码摄像机和掌上计算机
• 热插拔开关
z Peripheral ports
z Notebook computers
z Personal communication devices
z Hot swap supplies
技术规格书（产品PDF) 返回TOP
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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 |
|
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