AAT4296_06 ANALOGICTECH [Advanced Analogic Technologies], AAT4296_06 Datasheet

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AAT4296_06

Manufacturer Part Number
AAT4296_06
Description
Five/Six Channel Push/Pull I/O Expander
Manufacturer
ANALOGICTECH [Advanced Analogic Technologies]
Datasheet
General Description
The AAT4296/98 SmartSwitch is a member of
AnalogicTech's Application Specific Power MOS-
FET™ (ASPM™) product family. The AAT4296/98
is comprised of five/six push/pull output switches
that gate each respective output between a common
input supply and ground. This device is targeted for
I/O expansion applications, but can also be used for
a combination of general purposes to simplify power
switching with an off state load discharge.
The AAT4296/98 operates over an input voltage
range of 1.8V to 5.5V, making it ideal for battery-
powered applications. The state of each output
channel is controlled with a single GPIO via the
EN/SET pin using AnalogicTech's Simple Serial
Control™ (S
pulled to logic high, the device is enabled and con-
sumes 3µA of typical quiescent current. In the off
state, each output is pulled low to ground to affect
a logic low state for I/O expander or power switch-
ing applications; this circuit will act as a load dis-
charge function to rapidly turn off a load circuit.
Rated over the -40°C to +85°C temperature range,
the AAT4296 is offered in a Pb-free 8-pin SC70JW
package, and the AAT4298 is offered in both a Pb-
free 10-pin SC70JW and a Pb-free 12-pin
TSOPJW package.
Typical Application
4296.2006.12.1.3
EN/SET Input
VCC Input
2
Cwire™) interface. When EN/SET is
VCC
EN/SET
Five/Six Channel Push/Pull I/O Expander
AAT4298
GND
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
Features
Applications
V
Independent Push/Pull Channels
— AAT4296: Five Channels
— AAT4298: Six Channels
User-Programmable Interface
Single GPIO Controls State of Each Output
Optional Fast Auto-Discharge
Low Quiescent Current: 3µA Typical
Temperature Range: -40°C to +85°C
Available in Pb-Free Packages:
— AAT4296: 8-Pin SC70JW
— AAT4298: 10-Pin SC70JW and
Cell Phones
Multiple Low Power Switching
Personal Communication Devices
Portable Electronic Devices
IN
Range: 1.8V to 5.5V
12-Pin TSOPJW
SmartSwitch
AAT4296/98
OUT 1
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
1

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AAT4296_06 Summary of contents

Page 1

General Description The AAT4296/98 SmartSwitch is a member of AnalogicTech's Application Specific Power MOS- FET™ (ASPM™) product family. The AAT4296/98 is comprised of five/six push/pull output switches that gate each respective output between a common input supply and ground. This ...

Page 2

Pin Descriptions Pin # AAT4298 AAT4298 AAT4296 SC70JW-10 TSOPJW ...

Page 3

Absolute Maximum Ratings Symbol Description V to GND Input to GND CC OUTx to GND Output (Source) to GND EN/SET EN/SET to GND T Operating Junction Temperature Range J Thermal Information Symbol Description θ Thermal Resistance JA P Maximum Power ...

Page 4

Electrical Characteristics V = 5.0V -40°C to +85°C, unless otherwise noted. Typical values are Symbol Description V Supply Voltage Range CC I Quiescent Current Q On Resistance P-Channel R DS(ON) On Resistance N-Channel On Resistance ...

Page 5

Typical Characteristics Unless otherwise noted 5V Quiescent Current vs. Input Voltage 3.5 3.0 85°C 2.5 2.0 1.5 1.0 25°C 0.5 0.0 1.5 2 2.5 3 3.5 Input Voltage (V) V vs. Input Voltage IH 1.2 1.1 ...

Page 6

Typical Characteristics Unless otherwise noted 5V N-Channel R vs. Input Voltage DS(ON 100mA) LOAD 4.0 3 DS6 DS3 DS4 3.0 2.5 2.0 R DS5 1 DS2 DS1 1.0 1.5 ...

Page 7

Typical Characteristics Unless otherwise noted 5V EN/SET Timeout vs. Input Voltage 290 260 230 200 170 140 110 80 1.5 2 2.5 3 3.5 Input Voltage (V) Turn-On Characteristic = 100Ω Ω ...

Page 8

Typical Characteristics Unless otherwise noted 5V Turn-Off Characteristic = 100Ω Ω LOAD1 LOAD2 5V EN/SET 0V (5V/div OUT1 0V (5V/div OUT2 (5V/div) 0V Time (50μs/div) Turn-On Transient ...

Page 9

Functional Block Diagram EN/SET Functional Description The AAT4296/98 is comprised of five/six push/pull output slew rate limited load switches primarily tar- geted for microcontroller general input/output (I/O) expansion applications. Each push/pull output is supplied by the common V input and ...

Page 10

These devices may also be used for load switching applications, as well as I/O expansion. Since the V is gated to each output through a slew rate lim- CC ited low on-resistance switch, they are ideal for controlling applications circuits ...

Page 11

AAT4298 AAT4296 (only) Clock OUT6 OUT5 OUT4 OUT3 OUT2 OUT1 ...

Page 12

The S Cwire interface relies on the number of ris- 2 ing edges of the EN/SET pin to address and load the registers. S Cwire latches data or address 2 after the EN/SET pin has been held high for time ...

Page 13

The output capacitor has no specific capacitor type or ESR requirement. If desired, C increased to a value greater than 0.1µF without limit to accommodate any load transient condition without adversely affecting the device turn-on slew rate time. Thermal Considerations ...

Page 14

Driving LED Loads The AAT4296 and AAT4298 can be used to drive LEDs or other applications with light load current requirements. LED applications may include main and sub-LCD display backlighting, camera photo- flash applications, color (RGB) LEDs, and infrared (IR) ...

Page 15

Low Dropout Voltage Regulator System µController Figure 6: GPIO I/O Expander (Condense Five GPIO Control Lines to One Using AAT4296). 4296.2006.12.1.3 Five/Six Channel Push/Pull I/O Expander AAT4296 OUT1 IN OUT2 OUT3 OUT4 GPIO 1 EN/SET OUT5 GPIO 2 GPIO 2 ...

Page 16

Ordering Information Package SC70JW-8 SC70JW-10 TSOPJW-12 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 ...

Page 17

BSC Top View 2.00 ± 0.20 7° ± 3° Side View All dimensions in millimeters. 4296.2006.12.1.3 Five/Six Channel Push/Pull I/O Expander SC70JW-10 0.225 ± 0.075 0.45 ± 0.10 0.100 AAT4296/98 4° ± 4° 2.10 ± 0.30 End View 17 ...

Page 18

BSC 0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC 3.00 ± 0.10 0.055 ± 0.045 All dimensions in millimeters. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit ...

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