描述 Description

The AAT4292 SmartSwitch? is a member of AnalogicTech’s Application Specific Power MOSFET? (ASPM?) product family. The AAT4292 has seven P-channel MOSFETs configured for use as a high side microprocessor GPIO expander powered from a common supply source. Operating over a 1.8V to 5.5V range, the AAT4292 is ideal for portable Li-Ion/Polymer powered products. The state of each output channel is controlled with a single GPIO line via the EN/SET pin using AnalogicTech’s Simple Serial Control? (AS2Cwire?) interface.
The switch states are controlled by AnalogicTech’s Simple Serial Control (AS2Cwire) interface which permits ease of control and efficiency of size. The quiescent supply current is very low, typically 6.3μA. In shutdown mode, the supply current is reduced to less than 1μA.
The AAT4292 is offered in a Pb-free, 10-pin SC70JW package specified over the -40°C to +85°C temperature range.

特性 Features

·VIN Range: 1.8V – 5.5V
·7 Independent Output Channels
·1.1Ω RDS(ON) per Channel
·User Programmable AS2Cwire Interface
·Low Quiescent Current
·6.3μA Operational
·0.1μA in shutdown
·-40°C to +85°C Temperature Range
·Available in SC70JW-10 Package

簡(jiǎn)介

AAT4292屬于集成電路（IC）的I/O擴(kuò)展器。由制造生產(chǎn)的AAT4292I/O 擴(kuò)展器該系列器件可與微控制器、微處理器或類似器件結(jié)合使用，目的是增加可用于連接外設(shè)的信號(hào)連接數(shù)量。典型的工作概念涉及使用串行通信，只需主機(jī)設(shè)備上的幾根 I/O 線，即可讀/寫擴(kuò)展器設(shè)備上的許多輸入/輸出引腳的狀態(tài)。該技術(shù)的通信速度不佳，但連通性較高，最適合快速響應(yīng)不是很關(guān)鍵的應(yīng)用，例如許多人機(jī)界面應(yīng)用。