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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
General Description
The AAT4292 SmartSwitchTM is a member of AnalogicTech's Application Specific Power MOSFETTM (ASPMTM) 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 ControlTM (AS2CwireTM) 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 6.3A. In shutdown mode, the supply current is reduced to less than 1A. The AAT4292 is offered in a Pb-free, 10-pin SC70JW package specified over the -40C to +85C temperature range.
Seven Channel High-Side I/O Expander
Features
VIN Range: 1.8V - 5.5V 7 Independent Output Channels 1.1 RDS(ON) per Channel User Programmable AS2Cwire Interface Low Quiescent Current 6.3A Operational 0.1A in shutdown * -40C to +85C Temperature Range * Available in SC70JW-10 Package * * * * *
Applications
* Cell Phone Keypad, Backlight And Fashion Lighting Control * I/O Expander * Media Players * Multiple Channel Low Power Switching * Portable Electronic Devices
Typical Application
Input Voltage Supply CIN 1F VIN OUT1 OUT2 OUT3 Output 1 Output 2 Output 3 Output 4 Output 5 Output 6 Output 7
AAT4292
Control Logic EN/SET
OUT4 OUT5 OUT6 OUT7
GND
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Pin Descriptions
Symbol
OUT4 OUT5 OUT6 OUT7 GND EN/SET OUT1 OUT2 OUT3 VIN
Seven Channel High-Side I/O Expander
Pin #
1 2 3 4 5 6 7 8 9 10
Function
P-channel MOSFET drain; Channel 4 output pin. P-channel MOSFET drain; Channel 5 output pin. P-channel MOSFET drain; Channel 6 output pin. P-channel MOSFET drain; Channel 7 output pin. Ground connection. Input control pin using AS2Cwire serial interface. The device records rising edges of the clock, and decodes them into 128 states controlling the ON/OFF states of the outputs. See Table 1 and Table 2 for output settings. In addition, a logic low forces the device into shutdown mode, reducing the supply current to less than 1A. This pin should not be left floating. P-channel MOSFET drain; Channel 1 output pin. P-channel MOSFET drain, Channel 2 output pin. P-channel MOSFET drain, Channel 3 output pin. Input supply voltage. VIN is connected to the P-channel MOSFET common sources. Connect a 1F ceramic capacitor from VIN to GND.
Pin Configuration
SC70JW-10 (Top View)
OUT4 OUT5 OUT6 OUT7 GND
1 2 3 4 5
10 9 8 7 6
VIN OUT3 OUT2 OUT1 EN/SET
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Absolute Maximum Ratings1
Symbol
VIN VOUT VEN/SET IMAX TJ VESD
Seven Channel High-Side I/O Expander
Description
VIN to GND OUT to GND EN/SET to GND Maximum Continuous Switch Current Operating Junction Temperature Range ESD Rating - HBM2
Value
-0.3 to 6.0 -0.3 to VIN + 0.3 -0.3 to 6.0 250 -40 to 150 4000
Units
V V V mA C V
Thermal Information
Symbol
JA PD
Description
Thermal Resistance Maximum Power Dissipation4 (TA = 25C)
3
Value
225 440
Units
C/W mW
1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time. 2. Human body model is a 100pF capacitor discharged through a 1.5k resistor to each pin. 3. Mounted on a FR4 board. 4. Derate 4.4mW/C above 25C.
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Electrical Characteristics1
VIN = 5.0V, TA = -40C to 85C unless otherwise noted. Typical values are TA = 25C.
Symbol Description Conditions Min
1.8 EN/SET = VIN = 5V, IOUTn = 0, All Switches ON EN/SET = GND, VIN = 5V, OUTn = 0 VIN = 5.0V, IOUTn = 100mA, TA = 25oC VIN = 4.2V, IOUTn = 100mA, TA = 25oC VIN = 3.0V, IOUTn = 100mA, TA = 25oC VIN = 1.8V, IOUTn = 100mA, TA = 25oC 6.3 0.1 1.1 1.2 1.5 2.5 2800 40 270 40 0.4 1.6 100 500 250 4.0 4.0 1.0
Seven Channel High-Side I/O Expander
Typ
Max
5.5 10 1.0 1.7 1.8 2.2 3.8
Units
V A A
Power Supply and MOSFETs VIN Operation Voltage IQ ISD(OFF) RDS(ON) Quiescent Current Shutdown Current P-Channel High-Side MOSFET On-State Resistance
ppm/C
TCRDS On-State Resistance Temperature Coefficient Switch Timing tD(ON) tR tD(OFF) Output Turn-On Delay Time2 Turn-On Rise Time Output Turn-Off Delay Time3 VIN = 5V, RLOAD = 500, COUT = 100nF VIN = 5V, RLOAD = 500, COUT = 100nF VIN = 5V, RLOAD = 500 VIN = 1.8V VIN = 5.5V VEN/SET < 0.4V VIN 2.5V VIN > 2.5V
ns
Control Logic (EN/SET) VEN(L) Enable Threshold Low VEN(H) Enable Threshold High tLO EN/SET Low Time tHI tOFF tLAT ISINK Minimum EN/SET High Time EN/SET Off Timeout EN/SET Latch Timeout EN/SET Input Leakage Current
V V ns ns s s A
VEN/SET = 5.5V
1.3 1.15 0.01
1. The AAT4292 is guaranteed to meet performance specification over the -40C to +85C operating temperature range, and is assured by design, characterization and correlation with statistical process controls. 2. tD(ON) is the time after latch timeout to 90% of the output voltage. 3. tD(OFF) is the time after off timeout to 10% of the output voltage.
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Typical Characteristics
Unless otherwise noted, VIN = 5.0V, CIN = 1F, COUTn = 0.1F, TA = 25C. Quiescent Current vs. Input Voltage
8 8
Seven Channel High-Side I/O Expander
Quiescent Current vs. Temperature
Quiescent Current (A)
7 6 5 4 3 2 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Quiescent Current (A)
7 6 5 4 3 2 -40 -15 10 35 60 85
VIN = 5.0V VIN = 3.3V
Input Voltage (V)
Temperature (C)
VEN(H) and VEN(L) vs. Input Voltage
1.5 1.4 2.7 2.5 2.3
RDS(ON) vs. Input Voltage
(IOUT1-7 = 100mA)
RDS1 RDS2 RDS3 RDS4 RDS5 RDS6 RDS7
VEN(H) and VEN(L) (V)
1.3
RDS(ON) ()
VEN(H) VEN(L)
2 2.5 3 3.5 4 4.5 5 5.5
1.2 1.1 1 0.9 0.8 0.7 0.6 0.5 1.5
2.1 1.9 1.7 1.5 1.3 1.1 0.9 0.7 1.5 2 2.5 3 3.5 4 4.5 5
5.5
Input Voltage (V)
Input Voltage (V)
RDS(ON) vs. Temperature (VIN = 5.0V; IOUT1-7 = 100mA)
1.4 1.3 1.2
1.4 1.3 1.2
RDS(ON) vs. Temperature (VIN = 5.0V; IOUT1-7 = 10mA)
RDS(ON) ()
1 0.9 0.8 0.7 0.6 0.5
-40 -15 10 35 60
RDS1 RDS2 RDS3 RDS4 RDS5 RDS6 RDS7
85
RDS(ON) ()
1.1
1.1 1 0.9 0.8 0.7 0.6 0.5 -40 -15 10 35 60
RDS1 RDS2 RDS3 RDS4 RDS5 RDS6 RDS7
85
Temperature (C)
Temperature (C)
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Typical Characteristics
Unless otherwise noted, VIN = 5.0V, CIN = 1F, COUTn = 0.1F, TA = 25C. EN/SET Latch Timeout vs. Temperature
1.4 1.5
Seven Channel High-Side I/O Expander
EN/SET Off Timeout vs. Temperature
Latch Timeout, tLAT (s)
1.3
Off Timeout, tOFF (s)
VIN = 5.0V VIN = 3.3V
VIN = 5.0V VIN = 3.3V
1.4
1.2
1.3
1.1
1.2
1 -40 -15 10 35 60 85
1.1 -40 -15 10 35 60 85
Temperature (C)
Temperature (C)
EN/SET Timeout vs. Input Voltage
1.8 1.7
(VIN = 5V; RL2 = RL6 = RL7 = 50; CO2 = CO6 = CO7 = 0.1F)
Turn-On Characteristic
Off Timeout Latch Timeout
Timeout (s)
1.6 1.5 1.4 1.3 1.2 1.1 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
VOUT7 (5V/div) VOUT6 (5V/div) VOUT2 (5V/div) EN/SET (5V/div) Time (2s/div)
Input Voltage (V)
(VIN = 5V; RL2 = RL6 = RL7 = 50; CO2 = CO6 = CO7 = 0.1F)
Turn-On Characteristic
(VIN = 5V; RL2 = RL6 = RL7 = 50; CO2 = CO6 = CO7 = 0.1F)
Turn-On Characteristic
VOUT7 (5V/div) VOUT6 (5V/div) VOUT2 (5V/div) EN/SET (5V/div)
VOUT7 (5V/div) VOUT6 (5V/div) VOUT2 (5V/div) EN/SET (5V/div)
Time (10s/div)
Time (10s/div)
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Typical Characteristics
Unless otherwise noted, VIN = 5.0V, CIN = 1F, COUTn = 0.1F, TA = 25C.
(VIN = 5V; RL2 = RL6 = RL7 = 50; CO2 = CO6 = CO7 = 0.1F)
Seven Channel High-Side I/O Expander
Turn-On Characteristic
(VIN = 5V; RL2 = RL6 = RL7 = 50; CO2 = CO6 = CO7 = 0.1F)
Turn-On Characteristic
VOUT7 (5V/div) VOUT6 (5V/div) VOUT2 (5V/div) EN/SET (5V/div) Time (10s/div)
VOUT7 (5V/div) VOUT6 (5V/div) VOUT2 (5V/div) EN/SET (5V/div) Time (10s/div)
(VIN = 5V; RL2 = RL6 = RL7 = 50; CO2 = CO6 = CO7 = 0.1F)
Transition of Outputs
(VIN = 5V; RL2 = RL6 = RL7 = 50; CO2 = CO6 = CO7 = 0.1F) VOUT7 (5V/div) VOUT6 (5V/div) VOUT2 (5V/div) EN/SET (5V/div)
Turn-Off Characteristic
VOUT7 (5V/div) VOUT6 (5V/div) VOUT2 (5V/div) EN/SET (5V/div) Time (10s/div)
Time (10s/div)
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Functional Block Diagram
VIN OUT1
Seven Channel High-Side I/O Expander
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
UVLO
Logic Control and Level Shift
ROM
EN/SET
AS2Cwire Interface
GND
Functional Description
The AAT4292 consists of seven P-channel MOSFET power switches designed for I/O expansion applications. The device operates with input voltages ranging from 1.8V to 5.5V which, along with its extremely low operating current, makes it ideal for battery-powered applications. In cases where the input voltage drops below 1.8V, the AAT4292 MOSFETs are protected from entering the linear region of operation by automatically shutting down.
In addition, the TTL-compatible EN/SET pin makes the AAT4292 an ideal level-shifted load switch. An optional slew rate controlling feature eliminates inrush current when a MOSFET is turned on, allowing the AAT4292 to be implemented with a small input capacitor or no capacitor at all, while maintaining isolation between channels. During slewing, the current ramps linearly until it reaches the level required for the output load condition. The proprietary control method works by careful control and monitoring of the MOSFET gate volt-
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
age. When the device is switched ON, the gate voltage is quickly increased to the threshold level of the MOSFET. Once at this level, the current begins to slew as the gate voltage is slowly increased until the MOSFET becomes fully enhanced. Once it has reached this point, the gate is quickly increased to the full input voltage and RDS(ON) is minimized. The ON/OFF states of the seven MOSFET switches are controlled by the EN/SET serial clock input. An internal control counter is clocked on the rising edges of the EN/ SET pin and is decoded into 128 possible states of the MOSFET (see Table 1 and Table 2). The counter can be clocked at speeds up to 1MHz, but the count value is not latched until clocking has stopped and the EN/SET pin has remained high for the tLAT timeout (approximate 1.15s typical). The first rising edge of EN/SET enables the AAT4292 and is counted as the first clock. There are four address switch bank in AAT4292, which is selected by the corresponding rising edges 33 to 36, after remaining the EN/SET high for the tLAT timeout, then the clock number is latched and the relevant address switch bank (0 to 3) is asserted. Next, the corresponding rising edges of Data from 1 to 32 can be serial submitted, and closed by the EN/SET remaining high for tLAT timeout. After the timeout tLAT, the outputs status is updated accordingly. The AAT4292 is disabled after the EN/SET pin has transitioned and remained in a logic low for tOFF timeout, and the quiescent current drops to 0.1A typically.
Seven Channel High-Side I/O Expander
AS2Cwire Serial Interface
The ON/OFF states of the seven output channels are controlled by the EN/SET serial data input. An internal control counter is clocked on the rising edge of the EN/SET pin and is decoded into one of 128 possible states using a short address and data word (see Tables 1 and 2). AS2Cwire relies on the number of rising edges of the EN/ SET pin to address and load the registers, as illustrated in Figure 1. AS2Cwire latches data (1 to 32 edges) or address (33 to 36 edges) after the EN/SET pin has been held high for time tLAT. The interface records rising edges of the EN/SET pin and decodes them into one of four addresses corresponding to the address table (Table 1), or 1 of 32 data settings corresponding to the switch code table (Table 2). The combined address and data is used to decode one of 128 possible switch states. Address and Data are differentiated by the number of rising edges on the EN/SET pin. 1 to 32 rising edges signifies Data, and 33 to 36 rising edges signifies Address. The counter can be clocked at speeds up to 1MHz, such that intermediate states are not visible. The first rising edge of EN/SET enables the IC and turns the switches OUT3-OUT7 on. Once the final clock cycle is received, the EN/SET pin is held high to maintain the device setting. The device is disabled after the EN/SET pin transitions to a logic low state for tOFF timeout (approximate 1.3s typical).
Address Code
Address Switch Bank Code
0 1 2 3
EN/SET Rising Edges
33 34 35 36
Table 1: AS2Cwire Address Table.
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Data Code
Address Data OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 Address Data OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off on on on on on on on on on on on on on on on on off off off off off off off off off off off off off off off off on on on on on on on on on on on on on on on on off off off off off off off off off off off off off off off off on on on on on on on on off off off off off off off off on on on on on on on on off off off off off off off off on on on on on on on on off off off off off off off off on on on on on on on on off off off off off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on on off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off off on on on on on on on on on on on on on on on on off off off off off off off off off off off off off off off off on on on on on on on on on on on on on on on on off off off off off off off off off off off off off off off off on on on on on on on on off off off off off off off off on on on on on on on on off off off off off off off off on on on on on on on on off off off off off off off off on on on on on on on on off off off off off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on on on off off off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on on off off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off on off
Seven Channel High-Side I/O Expander
0
2
Address Data OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 Address Data OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7
1
3
Table 2: AS2Cwire Data Code Table.
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Application Information
Thermal Considerations
The AAT4292 is designed to deliver continuous output load currents. Due to its high integration, care must be taken in designing for higher load conditions. If greater loads are required, outputs can be tied together to deliver higher power to a given load. For the thermal calculation, assuming that the total current capability of the seven channels is ITOTAL, each chanI nel has the same current which is IOUT = TOTAL , then 7
Seven Channel High-Side I/O Expander
Output sequencing is accomplished via a series of pulses on the EN/SET pin. Each time a new pulse burst is asserted on EN/SET, the AAT4292 internal clock counter starts to count and sends the counted clock number to the register. After the tLAT timeout, the internal clock counter is reset and waits for the next pulse burst. For example, to sequence the outputs in order from OUT1 to OUT7, seven clock bursts are input on the EN/SET pin. From Table 1 and Table 2, the first bust of 34 address clocks followed by 32 data clocks turns on OUT1. The next burst of 33 address clocks followed by 32 data clocks will add OUT2. Then the burst of 33 address clocks followed by 16 data clocks will add OUT3; the burst of 33 address clocks followed by 8 data clocks will add OUT4; the burst of 33 address clocks followed by 4 data clocks will add OUT5; the burst of 33 address clocks followed by 2 data clocks will add OUT6; the burst of 33 address clocks followed by 1 data clock will add OUT7. Likewise, the outputs can be turned on/off in any order by adding the corresponding clock bursts.
PTOTAL = 7IOUT2RDS(ON) = 7
Where:
ITOTAL RDS(ON) = PD - PDERATE(TA - 25) 7
2
PD = 440mW when TA = 25C PDERATE = 4.4mW/C RDS(ON) = 1.7 (maximum) when VIN = 5.0V For example, at 25oC ambient, the AAT4292 power capability is PTOTAL = 440mW, then ITOTAL 1.35A at VIN = 5.0V. The current capability for each channel is IOUT = 192mA. At 85oC ambient, the AAT4292 power capability is PTOTAL = 440 - (85 - 25)4.4 = 176mW, then ITOTAL 0.85A at VIN = 5.0V. The current capability for each channel is IOUT = 121mA.
Input Capacitor
Normally, the input capacitor value could be ten times that of the total load capacitors. If the device outputs OUT1 to OUT7 have capacitor loads, depending on the load capacitor value, it is recommended that a 1F to 10F 0603 or 0805 ceramic capacitor be placed as close as possible between VIN and GND. For example, if the capacitor load at each output is 0.1F, the Murata GRM21BR61C106K ceramic capacitor (10F/16V/0805/ X5R) or a similar capacitor could be used. This helps to provide a low impendence loop to charge the load capacitors during the MOSFET switches' turn-on transient and keep the VIN voltage stable.
Output Sequencing
If output sequencing is not necessary, then a pulse burst of 33 address clocks followed by 1 data clock will switch on all of the outputs simultaneously. Alternately, the OUT3 to OUT7 will be switched on simultaneously on the first rising edge of the EN/SET pin after the tLAT timeout.
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Timing Diagram
Address Data
Seven Channel High-Side I/O Expander
TLO EN/SET 1 OUT1 To OUT2 2 32
THI
TLAT
T LAT
33(34,35,36)
1
2
n32
00 (or previous state )
11( or 10,01,00 )
00000 (or previous state )
32-n
Figure 1: AS2Cwire Timing Diagram.
Application Circuits
VIN : 1.8V to 5.5V
VIN
AAT4292
OUT1 1 System Controller GPIO 2 GPIO 3 GPIO 4 GPIO 5 OUT7 GPIO 6 GPIO 7 GPIO 2 to GPIO 7 are now free for other uses EN/SET OUT2 OUT3 OUT4 OUT5 OUT6 EN 1 EN 2 EN 3 EN 4 EN 5 EN 6 EN 7 Function 1 Function 2 Function 3 Function 4 Function 5 Function 6 Function 7
Figure 2: GPIO I/O Expander (condense seven GPIO control lines to one).
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM Seven Channel High-Side I/O Expander
AAT4292IJS SC70JW-10 2x2mm Battery + Battery 1 2 3 4 R4 R5 R6 R7 5 OUT4 OUT5 OUT6 OUT7 GND VIN OUT3 OUT2 OUT1 EN/SET 10 9 8 7 6 R1 R2 R3 CIN 1F GND
LED4
LED5
LED6
LED7 R8 100k GND
LED1
LED2
LED3
GND
Clock
Figure 3: Keypad, Backlighting, or Fashion Lighting Control.
Evaluation Board Schematic
Input Voltage DC+ U1 10F 1 TP4 TP5 TP6 R4 330 C4 0 .1 F LED4 C5 0.1F R5 330 C6 0.1F LED5 R6 330 TP7 C7 0 .1F LED6 LED7 R8 100k GND GND JP2 OSC1 R13 330 1 2 3 4 GND SW3 20MHz PIC12F675 U2 VDD GP5 GP4 GP3 VSS GP0 GP1 GP2 8 7 6 5 GND GND R7 330 2 3 4 5 OUT4 OUT5 OUT6 OUT7 GND VIN OUT 3 OUT 2 OUT 1 EN /SET 10 9 8 7 6 R1 330 TP1 C1 0.1 F LED2 R2 330 C2 0 .1F LED3 TP2 R3 330 C3 0.1F TP3 GND 1 2 3 DCCON 1 J1 VCC JP1 C9
AAT4292 LED1
C8 1F
R9 1k
R10 1k
R 11 1k
LED8
SW2 TP8 _GND SW1
GND
Figure 4: AAT4292 Evaluation Board Schematic.
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Evaluation Board Layout
Seven Channel High-Side I/O Expander
Figure 5: AAT4292 Evaluation Board Layout Top Layer (not to scale).
Figure 6: AAT4292 Evaluation Board Layout Bottom Layer (not to scale).
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PRODUCT DATASHEET
AAT4292
SmartSwitchTM
Ordering Information
Package
SC70JW-10
Seven Channel High-Side I/O Expander
Marking1
4WXYY
Part Number (Tape & Reel)2
AAT4292IJQ-T1
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. For more information, please visit our website at http://www.analogictech.com/about/quality.aspx.
Packaging Information
SC70JW-10
0.40 BSC
1.75 0.10 0.225 0.075
Top View
2.00 0.20 0.15 0.05
0.85 0.15
2.20 0.20 1.10 MAX
0.100
0.45 0.10 2.10 0.30
4 4
7 3
Side View
All dimensions in millimeters.
End View
1. XYY= assembly and date code. 2. Sample stock is generally held on part numbers listed in BOLD.
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0.05 0.05
15
PRODUCT DATASHEET
AAT4292
SmartSwitchTM Seven Channel High-Side I/O Expander
Advanced Analogic Technologies, Inc. 3230 Scott Boulevard, Santa Clara, CA 95054 Phone (408) 737-4600 Fax (408) 737-4611
(c) Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice. Except as provided in AnalogicTech's terms and conditions of sale, AnalogicTech assumes no liability whatsoever, and AnalogicTech disclaims any express or implied warranty relating to the sale and/or use of AnalogicTech products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed. AnalogicTech and the AnalogicTech logo are trademarks of Advanced Analogic Technologies Incorporated. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders.
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4292.2008.08.1.0

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