ANALOGICTECH AAT3132ITP-T1

AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
General Description
Features
The AAT3132/32A is a low noise, constant frequency charge pump DC/DC converter that uses fractional (1.5X) conversion to maximize efficiency for
white LED applications. The device can be used to
produce current levels up to 20mA in three of its outputs and up to 25 or 30mA in one of its outputs to
drive LEDs from a 2.7V to 5.5V input. Outputs may
be operated individually or paralleled for driving
higher-current LEDs. A low external parts count
(two 1µF flying capacitors and two small 1µF capacitors at VIN and OUT) makes the AAT3132/32A ideally suited for small battery-powered applications.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
AnalogicTech's Simple Serial Control™ (S2Cwire™)
interface is used to enable, disable, and set the LED
drive current in two groups: the three 20mA outputs
and the single 30mA output with multiple level logarithmic scales. The AAT3132/32A 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. A high charge pump switching frequency enables the use of very small external
capacitors. A low-current shutdown feature disconnects the load from VIN and reduces quiescent current to less than 1µA. The device also integrates a
test current/auto-disable feature for each channel.
The AAT3132/32A is available in the very small, Pbfree, 12-pin TSOPJW package.
ChargePump™
VIN Range: 2.7V to 5.5V
<1.0µA of Shutdown Current
1MHz Switching Frequency
White LED Backlighting
Fully Independent Display Lighting
Drives Low-VF and High-VF Type LEDs
Up to Three 20mA Outputs
Single 25mA Output (AAT3132-1)
Single 30mA Output (AAT3132/32A)
Multi-Position Logarithmic Scale with Digital
Control
Low Noise Constant Frequency Operation
Regulated Output Current
Automatic Soft Start
No Inductors
-40°C to +85°C Temperature Range
12-Pin TSOPJW Package
Applications
•
•
•
•
Color (RGB) Lighting
Programmable Current Source
White LED Backlighting
White Photo Flash for Digital Still Cameras
Typical Application
VIN
C1+
C1
1µF
VOUT
VBATTERY
CIN
1µF
COUT
1µF
C1C2+
AAT3132
C2
1µF
C2D1
D2
D3
D4
EN/SET
EN/SET
D5
D4
D3
D2
D1
GND
3132.2005.12.1.4
1
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Pin Descriptions
Pin #
Symbol
Function
1
C2+
Flying capacitor 2 positive terminal. Connect a 1µF capacitor between C2+
and C2-.
2
OUT
Charge pump output. Requires 1µF capacitor connected between this pin and
ground.
3
C1-
Flying capacitor 1 negative terminal.
4
C1+
Flying capacitor 1 positive terminal. Connect a 1µF capacitor between C1+
and C1-.
5
D3
Current source output #3.
6
D2
Current source output #2.
7
D4
Current source output #4.
8
D1
Current source output #1.
9
EN/SET
10
IN
11
GND
12
C2-
Control pin.
Input power supply. Requires 1µF capacitor connected between this pin and
ground.
Ground.
Flying capacitor 2 negative terminal.
Pin Configuration
TSOPJW-12
(Top View)
C2+
OUT
C1C1+
D3
D2
2
1
12
2
11
3
10
4
9
5
8
6
7
C2GND
IN
EN/SET
D1
D4
3132.2005.12.1.4
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Absolute Maximum Ratings1
Symbol
VIN
VOUT
VEN/SET
VEN/SET(MAX)
IOUT2
TJ
Description
Input Voltage
Charge Pump Output
EN/SET to GND Voltage
Maximum EN/SET to Input Voltage
Maximum DC Output Current
Operating Junction Temperature Range
Value
Units
-0.3 to 6
-0.3 to 6
-0.3 to 6
VIN - 0.3
150
-40 to 150
V
V
V
V
mA
°C
Value
Units
160
625
°C/W
mW
Thermal Information3
Symbol
θJA
PD
Description
Thermal Resistance
Maximum Power Dissipation (TA = 25°C)4
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. Based on long-term current density limitation.
3. Mounted on an FR4 board.
4. Derate 6.25mW/°C above 25°C.
3132.2005.12.1.4
3
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Electrical Characteristics1
VIN = 3.5V, CIN = COUT = C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted.
Typical values are TA = 25°C.
Symbol
Description
Conditions
Input Power Supply
VIN
Operation Range
ICC
ISHDN
IDX
IDX
I(D-Match)
ηCP
Charge Pump
TSS
FCLK
EN/SET
VEN(L)
VEN(H)
TEN/SET LO
TEN/SET HI
TOFF
Input Current
Operating Current
Shutdown Current
Maximum Output Current D1 to D3
Maximum Output Current D4
Current Matching Between
Any Two Outputs
Charge Pump Section Efficiency
Min
Max
Units
5.5
V
1.8
3.5
mA
20
25
30
1.0
22
27.5
33
µA
mA
2.7
3.0 ≤ VIN ≤ 5.5, Active,
No Load Current
EN = 0
3.0 ≤ VIN ≤ 5.5
TA = 25°C AAT3132-1
TA = 25°C AAT3132
VD1:D3 = 3.6, VIN = 3.3V
18
22.5
27
VIN = 3.5V, IOUT(TOTAL) = 90mA,
Measured from IN to OUT
Section
Soft-Start Time
Clock Frequency
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
Minimum EN/SET High Time
EN/SET Off Timeout
EN/SET Input Leakage
Typ
0.5
%
93
%
200
1000
µs
kHz
0.5
VEN/SET < 0.5
VEN/SET > 1.4
VEN/SET < 0.5
1.4
0.3
75
50
-1
mA
500
1
V
V
µs
ns
µs
µA
1. The AAT3132/32A is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is
assured by design, characterization, and correlation with statistical process controls.
4
3132.2005.12.1.4
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Typical Characteristics
Unless otherwise noted, VIN = 3.5V, CIN = COUT = C1 = C2 = 1µF, TA = 25°C.
VIH and VIL vs. VIN
IDIODE vs. Input Voltage
(4x20mA)
90
VDIODE = 3.3V
IDIODE (mA)
85
VDIODE = 3.4V
0.850
VDIODE = 3.5V
VDIODE = 3.6V
0.825
80
0.800
75
0.775
70
0.750
65
0.725
60
0.700
55
0.675
50
0.650
45
0.625
40
0.600
2.7
2.9
3.1
3.3
3.5
3.7
3.9
4.1
4.3
4.5
4.7
4.9
VIH
VIL
2.5
5.1
3.0
3.5
4.0
4.5
5.0
Input Voltage (V)
Input Voltage (V)
Turn-On to Full-Scale Charge Pump
Turn-On to Full-Scale Load Switch
ENSET
(1V/div)
ENSET
(1V/div)
OUT
(2V/div)
OUT
(2V/div)
VDIODE
(1V/div)
VDIODE
(2V/div)
IIN
(200mA/div)
IIN
(100mA/div)
Time (50µs/div)
5.5
Time (50µs/div)
Turn-Off
80mA Load Characteristics
VIN
20mV/div
ENSET
(1V/div)
VDIODE
(2V/div)
OUT
IIN
(100mA/div)
VDIODE
Time (200µs/div)
3132.2005.12.1.4
Time (1µs/div)
5
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Typical Characteristics
Unless otherwise noted, VIN = 3.5V, CIN = COUT = C1 = C2 = 1µF, TA = 25°C.
Output Current Change (%)
I DIODE vs. Temperature
2.00
1.00
0.00
-1.00
-2.00
-3.00
-4.00
-5.00
-6.00
-7.00
-50
-30
-10
10
30
50
70
90
110
Temperature (°C)
6
3132.2005.12.1.4
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Functional Block Diagram
VIN
Soft-Start
Control
1.5X
Charge
Pump
1MHz
Oscillator
Voltage
Reference
C1+
C1C2+
C2OUT
Current
Reference
Quad
Output
DAC
D1
D2
D3
32x16 bit
ROM
EN/SET
S2Cwire
Interface
Single
Output
DAC
32x16 bit
ROM
D4
GND
Functional Description
The AAT3132/32A is a high efficiency (1.5X) fractional charge pump device intended for white LED
backlight applications. It consists of a 1.5X charge
pump with multiple current source outputs. To maximize power conversion efficiency, an internal feedback control sensing circuit monitors the voltage
required on the constant current source outputs.
3132.2005.12.1.4
The AAT3132/32A requires only four external
components: two 1µF ceramic capacitors for the
charge pump flying capacitors (C1 and C2), one
1µF ceramic input capacitor (C IN), and one
0.33µF to 1µF ceramic output capacitor (COUT).
The 1.5X charge pump output is converted into
three (D1 to D3) constant current outputs to drive
three individual LEDs with a maximum current of
20mA each, and one (D4) constant current output
with a maximum current of 25 or 30mA. The cur-
7
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
rent source output magnitude is controlled by the
EN/SET serial data interface. The interface
records rising edges of the EN/SET pin and
decodes them into 32 addresses corresponding to
individual current level settings. The 32 addresses are divided up such that outputs D1 to D3 can
be controlled independently of output D4. For
Addresses 1 to 8, 9 to 16, 17 to 24, and 25 to 32,
outputs D1 to D3 start at 0mA and increase from
0.5mA to 20mA in three 8dB steps and three
2.5dB steps. Output D4 remains constant over
these address ranges which provides orthogonal
control of the two channels. For Addresses 1 to 8,
D4 is set to 0mA. For Addresses 9 to 16, D4 is set
to the next brightness setting; likewise for
Addresses 17 to 24 and Addresses 25 to 32. This
is summarized in Table 1 and Figure 1.
The modulo 32 interface wraps back to State 1
after the 32nd clock. With each EN/SET pulse,
the output current changes to the next setting in
the address decoding. To change settings to the
previous address decoding, 31 EN/SET clock
pulses are required. The counter can be clocked
at speeds up to 1MHz, so intermediate states are
not visible. The first rising edge of EN/SET
enables the IC and initially sets the output LED
currents 0mA. Additional clocks are required to
set the desired current level. Once the final clock
cycle is input for the desired brightness level, the
EN/SET pin is held high to maintain the device
output current at the programmed level. The
device is disabled 500µs after the EN/SET pin
transitions to a logic low state.
30
25
Current (mA)
20
15
10
5
0
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Address Code
Figure 1: Output Current Level Settings (Option AAT3132).
8
3132.2005.12.1.4
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Address
D1 to D3
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
0.0
0.5
1.3
3.3
8.3
11.1
15.0
20.0
0.0
0.5
1.3
3.3
8.3
11.1
15.0
20.0
0.0
0.5
1.3
3.3
8.3
11.1
15.0
20.0
0.0
0.5
1.3
3.3
8.3
11.1
15.0
20.0
Current Level Settings (mA)
D4 (AAT3132/32A) D4 (AAT3132-1)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
30.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
15.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
20.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
Table 1: Constant Current Source Output Programming Levels.
3132.2005.12.1.4
9
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Applications Information
Constant Current Output Level Settings
The constant current source output amplitude for
outputs D1 to D3 and D4 are set via the serial interface according to a logarithmic scale depicted in
Figure 1. Using a logarithmic scale, LED brightness appears linear with each increasing code
count. Because the outputs D1 to D4 are true
independent constant current sources, the voltage
observed on any single given output will be determined by the actual forward voltage (VF) for the
LED being driven.
Since the output current of the AAT3132/32A is
programmable through its S2Cwire interface, no
PWM (pulse width modulation) or additional control
circuitry are needed to control LED brightness. This
feature greatly reduces the burden on a microcontroller or system IC to manage LED or display
brightness, allowing the user to "set it and forget it."
Furthermore, with its high-speed serial interface
(1MHz data rate), the output current of the
AAT3132/32A can changed successively to brighten or dim LEDs in smooth transitions (e.g., to fade
out) or in abrupt steps, giving the user complete
programmability and real-time control of LED
brightness.
2
EN/SET Serial Interface (S Cwire)
The current source output magnitude is controlled
by the EN/SET serial data interface. The interface
records rising edges of the EN/SET pin and
decodes them into 32 individual current level settings, as summarized in Table 1. The modulo 32
interface wraps back to State 1 after the 32nd
clock, so the previous state is achieved by clocking
the EN/SET pin 31 times. The counter can be
clocked at speeds up to 1MHz, so that intermediate
states are not visible. The first rising edge of
EN/SET enables the IC and initially sets the output
LED current to 0. Once the final clock cycle is input
for the desired brightness level, the EN/SET pin is
held high to maintain the device output current at
the programmed level. The device is disabled
500µs after the EN/SET pin transitions to a logic
low state. The EN/SET timing is designed to
accommodate a wide range of data rates. After the
first rising edge of EN/SET, the charge pump is
10
enabled and reaches full capacity after the softstart time (TSS). During the soft-start time, multiple
clock pulses may be entered on the EN/SET pin to
set the final output current level with a single burst
of clocks. Alternatively, the EN/SET clock pulses
may be entered one at a time to gradually increase
LED brightness over any desired time period. A
constant current is sourced as long as EN/SET
remains in a logic high state. The current source
outputs are switched off after EN/SET has
remained in a low state for at least the TOFF timeout
period.
LED Selection
The AAT3132/32A is specifically intended for driving
white LEDs. However, the device design will allow
the AAT3132/32A to drive most types of LEDs with
forward voltage specifications ranging from 2.0V to
4.3V. LED applications may include main and subLCD display backlighting, camera photo-flash applications, color (RGB) LEDs, infrared (IR) diodes for
remotes, and other loads benefiting from a controlled
output current generated from a varying input voltage. Since the D1 to D4 output current sources are
matched with negligible voltage dependence, the
LED brightness will be matched regardless of the
specific LED forward voltage (VF) levels.
In some instances (e.g., in high luminous output
applications such as photo flash), it may be necessary to drive high-VF type LEDs. The low dropout
current sources in the AAT3132/32A make it capable of driving LEDs with forward voltages as high
as 4.3V at full current from an input supply as low
as 3.0V. Outputs can be paralleled to drive high
current LEDs without complication.
Device Switching Noise Performance
The AAT3132/32A operates at a fixed frequency of
approximately 1MHz to control noise and limit harmonics that can interfere with the RF operation of
cellular telephone handsets or other communication devices. Back-injected noise appearing on the
input pin of the charge pump is 20mV peak-topeak, typically ten times less than inductor-based
DC/DC boost converter white LED backlight solutions. The AAT3132/32A soft-start feature prevents
noise transient effects associated with inrush currents during start-up of the charge pump circuit.
3132.2005.12.1.4
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
EN/SET Timing Diagram
tHI
tOFF
tLO
EN/SET
Code
OFF
1
2
3
Power Efficiency and Device
Evaluation
The charge pump efficiency discussion in the following sections only accounts for efficiency of the
charge pump section itself. Due to the unique circuit
architecture and design of the AAT3132/32A, it is
very difficult to measure efficiency in terms of a percent value comparing input power over output
power.
Since the AAT3132/32A outputs are pure constant
current sources and typically drive individual loads, it
is difficult to measure the output voltage for a given
output (D1 to D4) to derive an overall output power
measurement. For any given application, white LED
forward voltage levels can differ, yet the output drive
current will be maintained as a constant.
This makes quantifying output power a difficult task
when taken in the context of comparing to other white
LED driver circuit topologies. A better way to quantify
total device efficiency is to observe the total input
power to the device for a given LED current drive
level. The best white LED driver for a given application should be based on trade-offs of size, external
components count, reliability, operating range, and
total energy usage...not just % efficiency.
The AAT3132/32A efficiency may be quantified
under very specific conditions and is dependent
upon the input voltage versus the output voltage
seen across the loads applied to outputs D1
through D4 for a given constant current setting.
The efficiency (η) can be simply defined as a linear
voltage regulator with an effective output voltage
that is equal to one and one half times the input
voltage. Efficiency (η) for an ideal 1.5X charge
pump can typically be expressed as the output
power divided by the input power.
3132.2005.12.1.4
OFF
η=
POUT
PIN
In addition, with an ideal 1.5X charge pump, the
output current may be expressed as 2/3 of the
input current. The expression to define the ideal
efficiency (η) can be rewritten as:
η=
POUT
VOUT × IOUT
VOUT
=
=
PIN
VIN × 1.5IOUT 1.5VIN
-or-
η(%) = 100
⎛ VOUT ⎞
⎝ 1.5VIN⎠
For a charge pump with an output of 5V and a nominal input of 3.5V, the theoretical efficiency is 95%.
Due to internal switching losses and IC quiescent
current consumption, the actual efficiency can be
measured at 93%. These figures are in close agreement for output load conditions from 1mA to 100mA.
Efficiency will decrease as load current drops below
0.05mA or when level of VIN approaches VOUT.
Refer to the Typical Characteristics section of this
datasheet for measured plots of efficiency versus
input voltage and output load current for the given
charge pump output voltage options.
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 (ESR)
11
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
ceramic capacitors are used. In general, low ESR
may be defined as less than 100mΩ. A value of
1µF for all four capacitors is a good starting point
when choosing capacitors. If the LED current
sources are only programmed for light current levels, then the capacitor size may be decreased.
Capacitor Characteristics
Ceramic composition capacitors are highly recommended over all other types of capacitors for use
with the AAT3132/32A. 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 to maximize charge
pump transient response. Since ceramic capacitors are non-polarized, they are not prone to incorrect connection damage.
Equivalent Series Resistance
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.
Ceramic Capacitor Materials
Ceramic capacitors less than 0.1µF are typically
made from NPO or C0G materials. NPO and C0G
materials 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, greater than
2.2µF, are often available in low-cost Y5V and Z5U
dielectrics, but capacitors greater than 1µF are
usually not required for AAT3132/32A applications.
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.
12
Test Current/Channel Disable
Each channel of the output is equipped with test current function. A small amount of current (~2µA) is
injected into each output current source to detect the
presence of load (LED). Unused channels that are
tied to ground or LED load fail short will be automatically disabled instead of wasting the programmed
output current. The test current in the AAT3132A is
higher (~150µA) to accommodate LEDs with lower
impedance in failure mode.
Thermal Protection
The AAT3132/32A 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.
Driving Multiple LEDs, White LED
Display Module Backlights, and
Individual LEDs Connected in Parallel
The AAT3132/32A D1 to D4 outputs are true constant current sources capable of driving up to 20mA
(D1 to D3) or 25/30mA (D4) each over the operation
input voltage range. Since these outputs are true
constant current sources, they may be connected in
parallel to drive a single power output. Any combination of outputs (D1 to D4) may be connected in parallel. The maximum total output current is a sum of
how many current sources are parallel connected.
This feature is particularly useful to power pre-manufactured display modules which are pre-wired with
white LED backlights connected in a parallel circuit
configuration. Any combination of outputs may be
connected in parallel to drive groups of LEDs. The
AAT3132/32A internal current source reference circuit bases feedback from current sensed on the D1
and D4 outputs. For best operation, the only requirement for this type of application is the outputs D1 and
D4 should always be connected to the load circuit.
The AAT3132/32A may be used to drive multiple
LEDs having differing forward voltages. Using
feedback techniques, the current in D1 to D3 is referenced to the current in the LED connected to D1.
Current source output D4 is its own reference. If all
LEDs are of similar type, the diodes will be
matched in current, maintaining uniform LED
brightness despite variations in manufacturer, production, etc.
3132.2005.12.1.4
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
However, if the diodes are dramatically different in
type comprising a mix of high-VF type and low-VF
type LEDs, the AAT3132/32A has the capability to
optimally drive up to four LEDs of one type and up
to two LEDs of another type simultaneously. This
feature can be useful for driving different color
LEDs, driving both display backlight and photoflash LEDs, or for driving main and sub-LCD display LED backlights from a single charge pump IC.
For example, when driving independent RGB
LEDs, the green and blue LEDs typically require a
high VF to operate (e.g., 3.7V), while the red LED
VIN
needs a low forward voltage (e.g., 2V). By connecting the green and blue diodes to outputs D1 to
D3 and the red diodes to D4, good control and uniformity in brightness is maintained despite the 2V
difference in the diode forward voltages.
Similarly, if a 4V photo-flash LED array is connected to outputs D1 through D3 (with the outputs shorted together) and two 3.3V sub-LCD display backlight LEDs are connected to output D4, then the
AAT3132/32A can optimally drive each set of LEDs
at the programmed current level (see Figure 2).
C1+
C1
1µF
VOUT
VBATTERY
CIN
COUT
1µF
1µF
C1C2+
AAT3132
AAT3132A
C2
1µF
D1
D2
D3
D5
D6
D4
C2D1
D2
D3
EN/SET
EN/SET
GND
D4
Figure 2: AAT3132/32A Driving Two Groups of Paralleled White LEDs
(e.g., main and sub-LCD backlights).
3132.2005.12.1.4
13
AAT3132/32A
High Efficiency 1.5X Fractional Charge
Pump for White LED Applications
Ordering Information
Package
Marking1
Part Number (Tape and Reel)2
TSOPJW-12
TSOPJW-12
TSOPJW-12
JAXYY
KHXYY
OJXYY
AAT3132ITP-T1
AAT3132ITP-1-T1
AAT3132AITP-1-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/pbfree.
Package Information
TSOPJW-12
2.85 ± 0.20
2.40 ± 0.10
0.10
0.20 +- 0.05
0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC
7° NOM
0.04 REF
0.055 ± 0.045
0.15 ± 0.05
+ 0.10
1.00 - 0.065
0.9625 ± 0.0375
3.00 ± 0.10
4° ± 4°
0.45 ± 0.15
0.010
2.75 ± 0.25
All dimensions in millimeters.
1. XYY = assembly and date code.
2. Sample stock is generally held on part numbers listed in BOLD.
© 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.
Customers are advised 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
3132.2005.12.1.4