Analogic AAT3172IWP-T1 High current led flash driver charge pump ic Datasheet

AAT3172
High Current LED Flash Driver Charge Pump IC
General Description
Features
The AAT3172 is a high output current, high efficiency, low noise, low profile charge pump DC/DC
converter, ideal for multi-function LED photo-flash
applications where solution cost, size, and efficiency are critical.
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The dual charge pump in the AAT3172 is capable
of delivering 600mA peak output current. Two current-controlled paths are available for users of dual
flash LEDs that prefer current matching. Each LED
channel can be easily programmed in 32 steps with
a single GPIO output through the AS2Cwire™
(Advanced Simple Serial Control™) interface. This
allows smooth transitions and flexible adjustment
of brightness in flash or other lighting modes.
The tri-mode (1X/1.5X/2X) operation of the internal
charge pump offers excellent power efficiency for
both flash and movie modes. Combined with a low
external parts count (two 1µF flying capacitors and
one small bypass capacitor at VIN and OUT), the
AAT3172 is ideally suited for small, battery-powered
applications.
ChargePump™
VIN Range: 2.7V to 5.5V
600mA Peak Output Current
Tri-Mode 1X/1.5X/2X in Current Mode
Voltage Mode Operation: 1.5X, 100mA
Dual Regulated Current Sinks
Current Match Between Current Sinks
32 Current Steps Set by AS2Cwire
1µF Input, Output, and Flying Capacitors
<1.0µA of Shutdown
Small Application Circuit
No Inductors
Automatic Soft Start
12-Pin TDFN 3x3 Package
-40°C to +85°C Temperature Range
Applications
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The AAT3172 has a thermal management system to
protect the device in the event of a short-circuit condition at the output pin. Built-in soft-start circuitry
prevents excessive inrush current during start-up.
The shutdown feature disconnects the load from VIN
and reduces quiescent current to less than 1.0µA.
Camera Phones
Digital Still Cameras (DSCs)
PDAs and Notebook PCs
Smart Phones
The AAT3172 is available in the Pb-free, thermallyenhanced, 12-pin 3x3 TDFN package.
Typical Application
C1
1µF
C1+
2.7V to 5.5V
C2
1µF
C1- C2+
VIN
C IN
4.7µF
C2VOUT
C OUT
2.2µF
AAT3172
Flash
LED 1
Flash
LED 2
F1
EN/SET
EN/SET
GND
3172.2005.11.1.1
F2
1
AAT3172
High Current LED Flash Driver Charge Pump IC
Pin Descriptions
Pin #
Symbol
Function
1, 12
2
3
4
5
6
7
8
9
10
11
EP
VIN
C1+
C1GND
F1
F2
EN/SET
N/C
C2C2+
VOUT
Input power supply pin. Requires 4.7µF bypass capacitor to ground.
Flying capacitor C1 positive terminal. Connect a 1.0µF capacitor between C1+ and C1-.
Flying capacitor C1 negative terminal.
Ground connection.
Current sink input #1.
Current sink input #2.
AS2Cwire serial interface control pin.
No connection.
Flying capacitor C2 negative terminal.
Flying capacitor C2 positive terminal. Connect a 1µF capacitor between C2+ and C2-.
Charge pump output. Requires 2.2µF capacitor connected between this pin and ground.
Exposed paddle (bottom); connect to GND directly beneath package.
Pin Configuration
TDFN33-12
(Top View)
VIN
C1+
C1GND
F1
F2
2
1
12
2
11
3
10
4
9
5
8
6
7
VIN
VOUT
C2+
C2N/C
EN/SET
3172.2005.11.1.1
AAT3172
High Current LED Flash Driver Charge Pump IC
Absolute Maximum Ratings1
TA = 25°C, unless otherwise noted.
Symbol
VIN
VEN
VEN(MAX)
IOUT
TJ
TS
TLEAD
Description
Input Voltage
EN to GND Voltage
Maximum EN to Input Voltage
Maximum DC Output Current (continuous)
Operating Junction Temperature Range
Storage Temperature Range
Maximum Soldering Temperature (at leads, 10 sec)
Value
Units
-0.3 to 6.0
-0.3 to 6.0
VIN + 0.3
400
-40 to 150
-65 to 150
300
V
V
V
mA
°C
°C
°C
Value
Units
50
2.0
°C/W
W
Thermal Information2
Symbol
θJA
PD
Description
Maximum Thermal Resistance
Maximum Power Dissipation
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. Mounted on an FR4 board.
3172.2005.11.1.1
3
AAT3172
High Current LED Flash Driver Charge Pump IC
Electrical Characteristics1
CIN = 4.7µF, COUT = 2.2µF, C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted. Typical values are
TA = 25°C, VIN = 3.6V.
Symbol
Description
Conditions
Power Supply
VIN
Input Voltage Range
VOUT(MAX)
Maximum Output Voltage
ICC
Operating Current
ISHDN(MAX)
IOUT(MAX)2
VIN Pin Shutdown Current
Maximum Output Current
I(D-Match)
Current Matching Between
Outputs; High Current
I(D-Match)
IDX
FCLK
VREG
TSS
EN/SET
VIL
VIH
TEN/SET LO
TEN/SET HI MIN
TEN/SET HI MAX
TOFF
TLAT
Input Current
Current Matching Between
Outputs; Low Current
Output Current Accuracy
Clock Frequency
Voltage Mode Regulation
Soft-Start Time
Min
Typ Max Units
2.7
ON/OFF Standby Mode, Code
Address = 4, Data = 2
1X, No Load Current
3.0 ≤ VIN ≤ 5.5, 1.5X Mode, No Load Current
3.0 ≤ VIN ≤ 5.5, 2X Mode, No Load Current
EN = 0
VF = 3.6V
VIN = 3.6V, TA = 25°C, 428mA
Code Address = 3, Data = 2;
Code Address = 0, Data = 4
VIN = 3.6V, TA = 25°C, 100mA
Code Address = 3, Data =1;
Code Address = 0, Data = 1
TA = 25°C, Code 1, HI Scale
270
EN/SET Code Address = 5, Data = 2
4.1
Enable Threshold Low
VIN = 2.7V
Enable Threshold High
VIN = 5.5V
EN/SET Low Time
Minimum EN/SET High Time
Maximum EN/SET High Time
EN/SET Off Timeout
EN/SET Latch Timeout
EN/SET Input Leakage
5.5
5.5
10
V
V
µA
300
2.0
3.0
4.0
6.0
1.0
600
µA
mA
8
%
8
%
330
2
4.5
200
4.9
0.4
1.4
0.3
75
50
-1
mA
75
500
500
1
mA
MHz
V
µs
V
V
µs
ns
µs
µs
µs
µA
1. The AAT3172 is guaranteed to meet performance specifications from 0°C to 70°C. Specification over the -40°C to +85°C operating
temperature range is assured by design, characterization, and correlation with statistical process controls.
2. Mounted on an FR4 board.
4
3172.2005.11.1.1
AAT3172
High Current LED Flash Driver Charge Pump IC
Typical Characteristics
VIN = 3.6V, CIN = 4.7µF, COUT = 2.2µF, C1 = C2 = 1µF, TA = 25°C, unless otherwise noted.
Efficiency vs. Supply Voltage
Turn-On to 1X Mode
(VIN = 4.2V; 50mA/ch Load)
100
Efficiency (%)
90
EN
(2V/div)
50mA/ch
VF = 2.8V
80
70
152mA/ch
VF = 3.0V
60
50
95mA/ch
VF = 2.9V
40
VOUT
(2V/div)
VSINK
(1V/div)
IIN
(200mA/div)
30
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
200µ
µs/div
Supply Voltage (V)
Turn-On to 1.5X Mode
Turn-On to 1X Mode
(VIN = 3.2V; 50mA/ch Load)
(VIN = 4.2V; 300mA/ch Load)
EN
(2V/div)
EN
(2V/div)
VOUT
(2V/div)
VSINK
(1V/div)
VOUT
(2V/div)
VSINK
(1V/div)
IIN
(200mA/div)
IIN
(500mA/div)
200µ
µs/div
500µ
µs/div
Turn-On to 2X Mode
Turn-Off from 1.5X Mode
(VIN = 3.2V; 300mA/ch Load)
(VIN = 3.2V; 50mA/ch Load)
EN
(2V/div)
EN
(2V/div)
VOUT
(2V/div)
VSINK
(1V/div)
VF
(1V/div)
IIN
(500mA/div)
IIN
(200mA/div)
500µ
µs/div
3172.2005.11.1.1
200µ
µs/div
5
AAT3172
High Current LED Flash Driver Charge Pump IC
Typical Characteristics
VIN = 3.6V, CIN = 4.7µF, COUT = 2.2µF, C1 = C2 = 1µF, TA = 25°C, unless otherwise noted.
Load Characteristic
Load Characteristic
(VIN = 3.0V; 1.5X Mode; 50mA/ch Load)
(VIN = 3.6V; 1.5X Mode; 152mA/ch Load)
VIN
(100mV/div)
VIN
(100mV/div)
VOUT
(200mV/div)
VOUT
(200mV/div)
VSINK
(200mV/div)
VSINK
(200mV/div)
2µs/div
2µs/div
Load Characteristic
Voltage Mode Load Regulation
(VIN = 2.8V; 2X Mode; 152mA/ch Load)
4.8
Output Voltage (V)
VIN
(100mV/div)
VOUT
(200mV/div)
VSINK
(200mV/div)
4.7
4.6
VIN = 4.2V
4.5
4.4
VIN = 3.7V
4.3
VIN = 3.3V
4.2
4.1
0
15
2µs/div
30
45
60
75
90
105
120
135
150
Load Current (mA)
Voltage Mode Line Regulation
Voltage Mode Load Response
(VIN = 3.7V)
Output Voltage (V)
4.8
4.7
4.51V
VOUT
(100mV/div)
IOUT = 10mA
4.6
4.5
4.4
100mA
IOUT = 120mA
4.3
IOUT
(100mA/div)
IOUT = 80mA
4.2
10mA
IOUT = 30mA
4.1
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
Input Voltage (V)
6
3.9
4.0
4.1
4.2
5ms/div
3172.2005.11.1.1
AAT3172
High Current LED Flash Driver Charge Pump IC
Typical Characteristics
VIN = 3.6V, CIN = 4.7µF, COUT = 2.2µF, C1 = C2 = 1µF, TA = 25°C, unless otherwise noted.
Voltage Mode Load Response
Voltage Mode Line Response
(VIN = 3.3V)
(100mA Load)
4.50V
VOUT
(100mV/div)
4.0V
VIN
(500mV/div)
100mA
IOUT
(100mA/div)
3.6V
10mA
VOUT
(200mV/div)
4.5V
5ms/div
1ms/div
TLAT vs. VIN
TOFF vs. VIN
160
180
25°C
140
140
100
85°C
80
60
TOFF (µs)
TLAT (µs)
120
40
-40°C
85°C
100
80
60
20
0
0
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
Input Voltage (V)
VIH vs. VIN Over-Temperature
VIL vs. VIN Over-Temperature
1.0
1.0
-40°C
0.9
-40°C
0.8
0.7
85°C
25°C
VIL (V)
0.8
VIH (V)
120
40
20
0.9
25°C
160
-40°C
0.7
0.6
0.6
0.5
0.5
0.4
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
3172.2005.11.1.1
85°C
25°C
0.4
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5
Input Voltage (V)
7
AAT3172
High Current LED Flash Driver Charge Pump IC
Functional Block Diagram
C1+
C1-
C2+
C2-
VIN
Charge Pump
Section 1
2MHz
Oscillator
Charge Pump
Section 2
OUT
Soft Start
Control
F1
EN/SET
System Control;
AS 2Cwire
F2
GND
Functional Description
The AAT3172 is a high efficiency, low noise, dual
stage tri-mode 1X/1.5X/2X charge pump device
intended for photo-flash LED applications. The
AAT3172 requires only four external components:
two 1.0µF ceramic capacitors for the charge pump
flying capacitors, one 4.7µF ceramic capacitor for
CIN, and one 2.2µF ceramic capacitor for COUT.
The charge pump is designed to deliver continuous
load currents up to 400mA. For short duration flash
events, the AAT3172 can deliver peak load currents up to 600mA over a 0°C to 70°C operating
temperature range. The dual stage charge pump
section contains soft-start circuitry to prevent
excessive in-rush current during start-up. System
efficiency is maximized with a tri-mode, dual stage
charge pump topology. The internal clock oscillator, which operates at 2MHz, allows the use of
small external components.
8
The tri-mode charge pump architecture optimizes
power conversion efficiency. Depending upon the
combination of load current, input voltage, and
nominal LED forward voltage, the charge pump will
operate in a 1X, 1.5X, or 2X mode to generate the
output voltage required to power the load for a programmed constant current setting. This results in
significant power savings over voltage doubling
architectures, especially when the LEDs are continuously operated at lower current levels in movie
viewing or flashlight modes.
Constant Current Channels
The AAT3172 contains two programmable constant
current sinks for integrated flash circuit control.
Efficiency is optimized with the low dropout characteristic of the current sinks. The low dropout performance extends the battery operating range for
1X and 1.5X modes, improving efficiency and
extending battery life. Each constant current sink is
3172.2005.11.1.1
AAT3172
High Current LED Flash Driver Charge Pump IC
programmable through the AS2Cwire serial interface. Independent current settings can be used for
a multistage flash LED control. This feature allows
users to conveniently drive separate dual flash
LEDs directly while achieving good brightness
matching. Also, F1 and F2 can be connected
together for single output configuration.
Modes of Operation
In addition to the data registers that set the current
levels for the two current sinks, the AAT3172 has
three mode registers. Register 3 is the HI/LO
mode register. It sets the maximum per channel
current level to either 300mA or 50mA. Each channel can be set independently so one channel can
be for flash while the other can be in a low constant
current mode.
Register 4 is the ON/OFF register. When set with
Data = 1, both current sources are enabled
(default); when set with Data = 2, both current
sources are disabled. When Register 4 is set to
OFF, the device is in standby mode with significantly reduced quiescent current.
The AAT3172 also includes a regulated output
voltage mode setting. By setting Register 6 with
Data = 2 for voltage mode, the charge pump delivers a regulated 4.5V output that continuously operates in 1.5X mode. It is suitable for driving loads
of up to 100mA. The voltage mode may be used
to drive LEDs with ballast resistors. Driving either
F1 or F2 in current mode will override the voltage
mode state until F1 and F2 are set back to zero
current by either data or mode register. Setting
Register 5 with Data = 1 will reset the mode back
to current mode and the charge pump output voltage will regulate appropriately.
AS2Cwire Serial Interface
The AAT3172 utilizes the AS2Cwire serial interface
to enable/disable the charge pump, set the operating mode, and adjust the output current level of
each constant current sink. Each current sink can
be independently programmed with sixteen current
levels (see table below). AS2Cwire incorporates
addressing to program the operating modes and
current level settings.
3172.2005.11.1.1
Constant Current Sink
Nominal Programming Levels
Data
300mA HI Scale
ISINK (mA/chnl)
50mA LO Scale
ISINK (mA/chnl)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
300
267
238
214
190
167
152
133
119
105
95
86
76
67
62
0
50
44
40
36
32
28
25
22
20
17
16
14
13
11
10
0
AS2Cwire relies on the number of rising edges of
the EN/SET pin to address and load the registers.
AS2Cwire latches data or address after the EN/SET
pin has been held high for time TLAT. Address or
data is differentiated by the number of EN/SET rising edges. Since the data registers are 4 bits each,
the differentiating number of pulses is 24 or 16, so
that Address 0 is signified by 17 rising edges,
Address 1 by 18 rising edges, and so forth. Data is
set to any number of rising edges between 1 and
including 16. A typical write protocol is a burst of
EN/SET rising edges, signifying a particular
address, followed by a pause with EN/SET held
high for the TLAT timeout period, a burst of rising
edges signifying data, and a TLAT timeout for the
data registers. Once an address is set, then multiple writes to that address are allowed where only
data is issued.
When EN/SET is held low for an amount of time
greater than TOFF, the AAT3172 enters into shutdown mode and draws less than 1µA from the supply. Address 0 is the default address on the first rising edge after the AAT3172 has been disabled.
9
AAT3172
High Current LED Flash Driver Charge Pump IC
After shutdown, if only data is issued with the first
rising edge (i.e., 1 - 16 edges, no address given),
both current sinks will be programmed since the
default will be Address 0.
ON/OFF Register (Address 4)
Data
MODE
1
2
ON
OFF
AS2Cwire Serial Interface Addressing
Voltage Register (Address 6)
EN/SET
Address Rising Edges
0
17
1
2
3
4
5
6
18
19
20
21
22
23
Data Register
F1 and F2
Current Scale
F1 Current Scale
F2 Current Scale
HI/LO
ON/OFF
Reserved
Voltage/Current Mode
Data
MODE
1
2
Current
Voltage
Thermal Protection
The AAT3172 has a thermal protection circuit that
will shut down the charge pump if the die temperature rises above the thermal limit, as is the case
during a short circuit of the OUT pin.
HI/LO Scale Register (Address 3)
Data
F1
F2
1
2
3
4
LO
HI
LO
HI
LO
HI
HI
LO
AS2Cwire Serial Interface Timing
Address
Data
T HI
T LO
TLAT
TLAT
EN/SET
1
Address
10
2
17
18
1
0
2...
n <= 16
1
Data Reg 1
0
Data Reg 2
0
n-1
3172.2005.11.1.1
AAT3172
High Current LED Flash Driver Charge Pump IC
ting to another for the last address. The address
register is not reset after each write; therefore, submitting address edges is only required when
changing the address.
Applications Information
AS2Cwire Programming
Generally, programming the AAT3172 is achieved
by submitting bursts of address and data edges to
the EN/SET pin. However, in some cases multiple
bursts of address and data are needed to enable a
particular operating mode. In other cases, only a
single burst of data edges is required.
Additional Applications
To enable both flash channels to a current setting
on the LO scale, the user submits a single burst of
address and data edges. To enable both flash channels to a current setting on the HI scale, the user
must submit a burst of address and data edges to
program the current setting level, and then submit a
second burst of address and data edges to program
the HI/LO scale register to the HI scale.
The constant voltage mode feature of the AAT3172
allows the user to combine the flash feature with
additional applications. Additional applications
such as auxiliary lighting and status LEDs can be
added while eliminating the need for an additional
power supply, which is normally required. Since the
constant voltage mode can supply a regulated output at up to 100mA load, it is capable of driving five
LEDs at 20mA each. It is suitable for keypad lighting, status lighting, and other applications where a
4.5V power supply could be used.
Shortcuts can also be used. If the device is in shutdown, both flash channels can be enabled to a setting on the LO scale by just giving a single burst of
data edges. The address edges are not needed
because all registers are reset during shutdown
and address 0 is the default. Further, a single burst
of data edges can be used to change from one set-
When enabling constant voltage mode, the LED
channels F1 and F2 are automatically disabled so
current does not flow through the flash LED during
constant voltage mode. Because of this, very little
programming is required. The user just addresses
the voltage mode register and programs it to voltage mode.
C1
1µF
C1+
2.7V to 5.5V
C1- C2+
VIN
CIN
4.7µF
EN/SET
C2
1µF
C2VOUT
COUT
2.2µF
AAT 3172
Flash
LED
F1
EN/SET
F2
GND
AUX_EN
Figure 1: Flash Plus Auxiliary Lighting.
3172.2005.11.1.1
11
AAT3172
High Current LED Flash Driver Charge Pump IC
C1
1µF
C1+
2.7V to 5.5V
C2
1µF
C1- C2+
VIN
CIN
4.7µF
C2VOUT
F1
EN/SET
EN/SET
C OUT
2.2µF
AAT 3172
Flash
LED
STAT1
STAT2
F2
GND
Figure 2: Flash Plus Status Lighting.
LED Selection
The AAT3172 is designed to drive high intensity
white flash LEDs with forward voltages up to 4.4V.
Charge Pump Efficiency
⎛ VF ⎞
= 100% × 1.5V 1.5X Mode
⎝
IN⎠
Ceramic composition capacitors are highly recommended over all other types of capacitors for use
with the AAT3172. Ceramic capacitors offer many
advantages over their tantalum and aluminum electrolytic counterparts. A ceramic capacitor typically
has very low ESR, is lowest cost, has a smaller
PCB footprint, and is non-polarized. Low ESR
ceramic capacitors help maximize charge pump
transient response.
⎛ VF ⎞
= 100% × 2V
⎝ IN ⎠
Equivalent Series Resistance
η=
POUT
PIN
⎛ VF ⎞
= 100% × V
⎝ IN⎠
1X Mode
2X Mode
Capacitor Selection
Careful selection of the four external capacitors
(CIN, C1, C2, and COUT) is important because they
will affect turn-on time, output ripple, and transient
performance. Optimum performance will be
obtained when low equivalent series resistance
12
(ESR) (<100mΩ) ceramic capacitors are used. A
value of 1µF for all four capacitors is a good starting point when choosing capacitors. If the LED current sinks are only programmed for light current
levels, then the capacitor size may be decreased.
ESR is an important characteristic to consider
when selecting a capacitor. ESR is a resistance
internal to a capacitor that is caused by the leads,
internal connections, size or area, material composition, and ambient temperature. Capacitor ESR is
typically measured in milliohms for ceramic capacitors and can range to more than several ohms for
tantalum or aluminum electrolytic capacitors.
3172.2005.11.1.1
AAT3172
High Current LED Flash Driver Charge Pump IC
Ceramic Capacitor Materials
Ceramic capacitors less than 0.1µF are typically
made from NPO or C0G materials. NPO and C0G
materials typically have tight tolerance and are stable over temperature. Large capacitor values are
typically composed of X7R, X5R, Z5U, or Y5V
dielectric materials. Large ceramic capacitors, typically greater than 2.2µF, are often available in low-
3172.2005.11.1.1
cost Y5V and Z5U dielectrics, but large capacitors
are not required in the AAT3172 application.
Capacitor area is another contributor to ESR.
Capacitors that are physically large will have a lower
ESR when compared to an equivalent material,
smaller capacitor. These larger devices can improve
circuit transient response when compared to an
equal value capacitor in a smaller package size.
13
AAT3172
High Current LED Flash Driver Charge Pump IC
Ordering Information
Package
Marking1
Part Number (Tape and Reel)2
TDFN33-12
QLXYY
AAT3172IWP-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
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information, please visit our website at http://www.analogictech.com/pbfree.
Package Information
TDFN33-12
2.40 ± 0.05
Detail "B"
3.00 ± 0.05
Index Area
(D/2 x E/2)
0.3 ± 0.10 0.16 0.375 ± 0.125
0.075 ± 0.075
3.00 ± 0.05
1.70 ± 0.05
Top View
Bottom View
Pin 1 Indicator
(optional)
0.23 ± 0.05
Detail "A"
0.45 ± 0.05
0.1 REF
0.05 ± 0.05
0.229 ± 0.051
+ 0.05
0.8 -0.20
7.5° ± 7.5°
Detail "B"
Option A:
C0.30 (4x) max
Chamfered corner
Side View
Option B:
R0.30 (4x) max
Round corner
Detail "A"
All dimensions in millimeters.
1. XYY = assembly and date code.
2. Sample stock is generally held on part numbers listed in BOLD.
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, and advise customers to obtain the latest
version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale
supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability.
AnalogicTech warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with AnalogicTech’s standard warranty. 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.
Advanced Analogic Technologies, Inc.
830 E. Arques Avenue, Sunnyvale, CA 94085
Phone (408) 737-4600
Fax (408) 737-4611
14
3172.2005.11.1.1
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