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AAT4626 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT4626 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 14 page  SmartSwitch™ General Description The AAT4626 SmartSwitch™ is part of AnalogicTech's Application Specific Power MOSFET™ (ASPM™) product family. It is a dual- channel 500mA current-limited P-channel MOSFET power switch designed for high-side load-switching applications. This switch operates with inputs rang- ing from 2.7V to 5.5V, making it ideal for both 3V and 5V systems. An integrated current-limiting cir- cuit protects the input supply against large changes in load current which may cause the supply to fall out of regulation. The AAT4626 is also protected from thermal overload which limits power dissipa- tion and junction temperatures. The current limit threshold is factory programmed at 1.0A, with a maximum of 1.5A. The quiescent supply current is typically a low 20µA. In shutdown mode, the supply current decreases to less than 1µA. The AAT4626 is available in 8 pin SOP or TSSOP specified over a -40 to 85°C temperature range. The AAT4600 Series is a family of adjustable and fixed SmartSwitch™ products with a range of cur- rent handling capabilities. Single versions with adjustable current limit (AAT4601) or fixed current limit (AAT4625) as well as dual versions with fixed current limit (AAT4626) are also available. Features • Compliant to USB 1.1 and 2.0 specifications • 2.7V to 5.5V Input voltage range • 500mA (min) continuous current per channel • 1.25A (max) current limit per channel • 90m Ω typical R DS(ON) • Low quiescent current • Typically 20µA • 1µA max with Switches off • Thermal shutdown • Slew rate limited turn on • Fault flag with 2ms blanking • Undervoltage Lockout • Temp range -40 to 85°C • UL Approved—File No. E217765 • 8 pin SOP or TSSOP package Applications • USB ports and peripherals • Notebook computers • Hot swap supplies • General purpose power switching UL Recognized Component AAT4626 USB Dual-Channel Power Switch Typical Application AAT4626 VCC 5.0V GND GND 47 µF 47 µF FLGA FLGB OUTA OUTB (ENB) ENB (ENB) ENB (ENA) ENA (ENA) ENA OUTPUTB OUTPUTA 0.1 µF 100k Ω 100k Ω 1 4 8 5 2 6 3 4626.2002.1.0.93 1 |
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