AAT4290_06 ANALOGICTECH [Advanced Analogic Technologies], AAT4290_06 Datasheet

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AAT4290_06

Manufacturer Part Number
AAT4290_06
Description
I/O Expander Load Switches with Serial Control
Manufacturer
ANALOGICTECH [Advanced Analogic Technologies]
Datasheet
General Description
The AAT4290 and AAT4291 SmartSwitch products
are members of AnalogicTech’s Application
Specific Power MOSFET™ (ASPM™) product
family. The AAT4290 and AAT4291 are five and
three P-channel MOSFETs, respectively, config-
ured for use as a microprocessor I/O expander.
Having independent drain outputs and a common
source input, they operate with an input voltage
ranging from 1.8V to 5.5V, making them ideal for
2.5V, 3.3V, or 5V systems, as well as systems pow-
ered by lithium-ion/polymer batteries. Each switch
features a 500ns turn-on time. The switch states
are controlled by AnalogicTech’s Simple Serial
Control™ (S
of control and efficiency of size. The quiescent
supply current is very low, typically 5µA. In shut-
down mode, the supply current is reduced to less
than 1µA.
The AAT4290 and AAT4291 are offered in a Pb-
free, 8-pin SC70JW package specified over the
-40°C to +85°C temperature range.
Typical Application
4290.2006.03.1.2
EN/SET
INPUT
GND
2
Cwire™) interface which permits ease
1µF
C
IN
EN/SET
IN
AAT4290
I/O Expander Load Switches with Serial Control
GND
OUT1
OUT2
OUT3
OUT4
OUT5
0.1µF
C
OUT1
Features
Applications
C
0.1µF
OUT2
1.8V to 5.5V Input Voltage Range
5 or 3 Independent Load Switches
S
1.1Ω R
Low Quiescent Current
— 5µA
— 0.1µA in Shutdown
-40°C to +85°C Temperature Range
8-Pin SC70JW Package
Cell Phones
I/O Expansion
Multiple Low Power Switching
Personal Communication Devices
Portable Electronic Devices
2
Cwire Interface
C
0.1µF
DS(ON)
OUT3
Per Switch
C
0.1µF
OUT4
SmartSwitch
C
0.1µF
AAT4290/91
OUT5
OUT2
OUT1
OUT3
OUT4
OUT5
GND
1

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AAT4290_06 Summary of contents

Page 1

General Description The AAT4290 and AAT4291 SmartSwitch products are members of AnalogicTech’s Application Specific Power MOSFET™ (ASPM™) product family. The AAT4290 and AAT4291 are five and three P-channel MOSFETs, respectively, config- ured for use as a microprocessor I/O expander. Having ...

Page 2

Pin Descriptions Pin # AAT4290 AAT4291 N Pin Configuration AAT4290 SC70JW-8 (Top View OUT2 2 OUT1 3 EN/SET 4 2 ...

Page 3

Absolute Maximum Ratings Symbol Description GND IN V OUT to GND OUT V EN/SET to GND EN/SET I Maximum Continuous Switch Current MAX T Storage Temperature Range STORAGE V ESD Rating - HBM ESD Thermal Characteristics Symbol ...

Page 4

Electrical Characteristics V = 5.0V -40°C to +85°C, unless otherwise noted. Typical values are Symbol Description V Operation Voltage IN I Quiescent Current Q I Off Supply Current Q(OFF) I Off Switch Current SD(OFF) V ...

Page 5

Typical Characteristics Unless otherwise noted 5V Quiescent Current vs. Temperature 4.5 4 3.5 3 2.5 2 -40 - Temperature (°C) V and V vs. Input Voltage ...

Page 6

Typical Characteristics Unless otherwise noted 5V EN/SET Latch Timeout vs. Temperature 3.4 3.2 3 2.8 2 5.0V IN 2.4 2.2 -40 - Temperature (°C) EN/SET Timeout vs. Input Voltage 4.3 4.1 ...

Page 7

Typical Characteristics Unless otherwise noted 5V Turn-On Characteristic ( 50Ω (5V/div (5V/div) EN/SET (5V/div) Time (2µs/div) Transition of Outputs (V = 5V; ...

Page 8

Functional Block Diagram IN EN/SET Functional Description The AAT4290 consists of five P-channel MOSFET power switches designed for I/O expansion appli- cations. The AAT4291 has all of the features offered in the AAT4290, but integrates three switches instead of five. ...

Page 9

EN/SET pin has remained in a high state for T . The AAT4290 is disabled after the LAT EN/SET pin has transitioned and remained in a logic low state for Clock OUT5 OUT4 OUT3 ...

Page 10

Timing Diagram OUTn EN/SET Output Sequencing If output sequencing is not necessary, then all of the outputs will be switched on simultaneously on the first rising edge of the EN/SET pin. However, if out- put sequencing ...

Page 11

Applications Circuits System µController AAT3110IJS-5.0 SC70JW-8: 2x2mm VIN V BATTERY 10µF ON/OFF SHDN CLOCK (eliminates three discrete MOSFET switches). 4290.2006.03.1.2 I/O Expander Load Switches with Serial Control V SUPPLY 1.8 to 5.5V AAT4290 IN OUT1 GPIO 1 EN/SET OUT2 OUT3 ...

Page 12

Ordering Information Package SC70JW-8 SC70JW-8 All AnalogicTech products are offered in Pb-free packaging. The term “Pb-free” means semiconductor products that are in compliance with current RoHS standards, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. ...

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