AAT4670_06 PDF预览

AAT4670_06

更新时间: 2025-07-18 04:30:35
品牌 Logo 应用领域
ANALOGICTECH 开关
页数 文件大小 规格书
13页 255K
描述
Dual-Input, Dual-Output Load Switch

AAT4670_06 数据手册

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AAT4670  
Dual-Input, Dual-Output Load Switch  
SmartSwitch  
General Description  
Features  
The AAT4670 SmartSwitch is a member of  
AnalogicTech’s Application Specific Power MOS-  
FET™ (ASPM™) product family. The AAT4670  
consists of dual, independent, 1A current limited,  
slew rate controlled P-channel MOSFET power  
switches with a dedicated source and drain pin  
assigned to each switch. The internal circuitry auto-  
matically derives power from the higher of the two  
input power source pins with a low operating quies-  
cent current of 18µA. In shutdown mode, the supply  
current decreases to less than 1µA. The switches  
operate with inputs ranging from 2.2V to 5.5V, mak-  
ing them ideal for 2.5V, 3V, and 5V systems. The  
dual configuration permits integration of the load  
switch function for systems with two different power  
busses. Independent under-voltage lockout circuits  
will shut down the corresponding switch if its input  
voltage falls below the under-voltage lockout thresh-  
old. If the die temperature reaches the thermal limit,  
both switches thermal cycle off and on indefinitely  
without damage until the thermal condition is  
removed. An open drain FAULT output signals an  
over-current or over-temperature condition for each  
channel. Input logic levels are TTL compatible.  
2.2V to 5.5V Input Voltage Range  
1A Current Limit Per Channel  
95mΩ Typical RDS(ON)  
Fast Transient Response:  
— <1µs Response to Short Circuit  
Low 18µA Quiescent Current  
1µA Max with Switches Off  
Slew Rate Controlled  
Thermal Shutdown  
Fault Flags with 3ms Blanking  
Under-Voltage Lockout  
Temperature Range: -40°C to +85ºC  
Available in TDFN33-12, SOP-8, TSSOP-8, or  
MSOP-8 Package  
Applications  
Hot Swap Supplies  
Media Bay  
Notebook Computer  
PDA, Subnotebook  
Peripheral Ports  
USB Ports  
The AAT4670 is available in a Pb-free, space-sav-  
ing, thermally-enhanced TDFN 3x3x0.8mm 12-lead  
package. The device is also available in a Pb-free  
8-pin SOP, TSSOP, or MSOP package and is spec-  
ified over the -40°C to +85°C temperature range.  
Typical Application  
AAT4670  
INA  
INB  
OUTA  
OUTB  
INA  
INB  
EN  
OUTA  
OUTB  
EN  
FAULTA  
FAULTB  
FAULTA  
FAULTB  
GND  
COUTA  
COUTB  
CINA  
CINB  
1μF  
1μF  
1μF  
1μF  
GND  
GND  
4670.2006.09.1.4  
1

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