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AIC1526-0CS PDF预览

AIC1526-0CS

更新时间： 2024-01-27 18:19:31
品牌 Logo 应用领域
沛亨 - AIC 开关电源开关
页数 文件大小 规格书
8页 244K
描述
Dual USB High-Side Power Switch

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AIC1526-0CS 技术参数

是否Rohs认证：符合生命周期：Contact Manufacturer
包装说明：SOP, SOP8,.25Reach Compliance Code：compliant
风险等级：5.76Is Samacsys：N
驱动器位数：2JESD-30 代码：R-PDSO-G8
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.5 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE电源：5 V
认证状态：Not Qualified子类别：Peripheral Drivers
标称供电电压：5 V表面贴装：YES
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
Base Number Matches：1

AIC1526-0CS 数据手册

 浏览型号AIC1526-0CS的Datasheet PDF文件第2页浏览型号AIC1526-0CS的Datasheet PDF文件第3页浏览型号AIC1526-0CS的Datasheet PDF文件第4页浏览型号AIC1526-0CS的Datasheet PDF文件第5页浏览型号AIC1526-0CS的Datasheet PDF文件第6页浏览型号AIC1526-0CS的Datasheet PDF文件第8页 
AIC1526  
ꢀAPPLICATION INFORMATION  
the case of overcurrent fault.  
ꢀ Error Flag  
An open-drained output of an N-channel  
MOSFET, the FLG output is pulled low to signal  
the following fault conditions: input undervoltage,  
output current limit, and thermal shutdown.  
ꢀ Supply Filtering  
A 0.1µF to 1µF bypass capacitor from IN to GND,  
located near the device, is strongly  
recommended to control supply transients.  
Without a bypass capacitor, an output short may  
cause sufficient ringing on the input (from supply  
lead inductance) to damage internal control  
circuitry.  
ꢀ Current Limit  
The current limit threshold is preset internally. It  
protects the output MOSFET switches from  
damage due to undesirable short circuit  
conditions or excess inrush current often  
encountered during hot plug-in. The low limit of  
the current limit threshold of the AIC1526 allows  
a minimum current of 0.5A through the MOSFET  
switches. A current limit condition will signal the  
error flag.  
ꢀ Transient Droop Requirements  
USB support dynamic attachment (hot plug-in) of  
peripherals. A current surge is caused by the  
input capacitance of downstream device. Ferrite  
beads are recommended in series with all power  
and ground connector pins. Ferrite beads reduce  
EMI and limit the inrush current during hot-  
attachment by filtering high-frequency signals.  
ꢀ Thermal Shutdown  
When the chip temperature exceeds 135°C for  
any reason other than overcurrent fault of either  
one of the two MOSFET switches, the thermal  
shutdown function turns off both MOSFET  
switches and signal the error flag. A hysteresis of  
10°C prevents the MOSFETs from turning back  
on until the chip temperature drops to below  
125°C. However, if thermal shutdown is triggered  
by chip temperature rise due to overcurrent fault  
condition of either one of the MOSFET switches,  
the thermal shutdown function will only turn off  
the switch that is in overcurrent condition and the  
other switch can still remain its normal operation.  
In other words, the thermal shutdown function of  
the two switches is independent of each other in  
ꢀ Short Circuit Transient  
Bulk capacitance provides the short-term  
transient current needed during a hot-attachment  
event. With a 33µF, 16V tantalum or 100µF, 10V  
electrolytic capacitor mounted close to  
downstream connector per port should provide  
transient drop protection.  
ꢀ
Printed Circuit Layout  
The power circuitry of USB printed circuit boards  
requires a customized layout to maximize  
thermal dissipation and to minimize voltage drop  
and EMI.  
7
1...45678

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