202165A.pdf

DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
General Description
Features
The AAT3340 is a low-noise, constant-frequency charge
pump DC/DC converter that uses a dual-mode load switch
(1x) and fractional (1.5x) conversion to maximize efficiency for white LED applications. The AAT3340 is capable
of driving 4 white LEDs at a total of 80mA from a single
2.7V to 5.5V input. The current sinks may be operated
individually or in parallel while driving higher-current
LEDs. A low external parts count (two 1µF flying capacitors
and two small 1µF capacitors at VIN and VOUT) makes the
AAT3340 ideal for small battery-powered applications.
• Dual-Mode (1x/1.5x) Charge Pump
• Drives up to 4-Channel Backlight LEDs
• 32-Level Programmable Backlight Current (linear,
inverting)
• Single-wire S2Cwire Control
• Built-in Thermal Protection
• Automatic Soft Start
• -40°C to +85°C Temperature Range
• TSOPJW-12 and TDFN33-12 Packages
Skyworks' Simple Serial Control (S2Cwire) digital interface is used to enable, disable and set current to one of
32 levels for the LEDs.
Applications
The AAT3340 is equipped with built-in short-circuit and
over-temperature protection. The soft-start circuitry prevents excessive inrush current at start-up and mode
transitions. The AAT3340 family is available in Pb-free,
space-saving TSOPJW and TDFN33 packages, and operates over the -40°C to +85°C ambient temperature
range.
• Cellular and Smart Phones
• Digital Still and Video Cameras
•PDAs
• Portable Devices
• Portable Media Players
• Other White LED Backlighting
Typical Application
C1
1µF
VBATTERY
3.6V
C IN
1µF
EN/SET
S2Cwire Serial Control
C1+
C2+
C1-
C2-
IN
OUT
C2
1µF
C OUT
1µF
AAT3340
D1
D2
D3
D4
BL1
EN/SET
BL2
BL3
BL4
GND
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
1
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Pin Description
Pin Number
TDFN33-12
TSOPJW-12
Name
1
12
C1+
2
11
OUT
3
10
IN
4
9
C2+
5
6
7
8
9
10
11
12
EP
8
7
6
5
4
3
2
1
n/a
EN/SET
BL1
BL2
BL3
BL4
C1GND
C2-
Function
Flying capacitor 1 positive terminal. Connect a 1μF ceramic capacitor between C1+ and C1-.
Charge pump output to drive load circuit. Requires a 1μF or larger ceramic capacitor connected between this pin and ground.
Input power supply. Requires a 1μF or larger ceramic capacitor connected between this pin
and ground.
Flying capacitor 2 positive terminal. Connect a 1μF ceramic capacitor between C2+ and C2-.
AS2Cwire serial interface control pin.
Current sink input #1.
Current sink input #2.
Current sink input #3.
Current sink input #4.
Flying capacitor 1 negative terminal.
Ground pin
Flying capacitor 2 negative terminal.
Exposed paddle (bottom). Connect to GND directly beneath package.
Pin Configuration
TSOPJW-12
(Top View)
2
C2-
1
12
GND
2
11
C1-
3
10
BL4
4
9
C2+
BL3
5
8
EN/SET
BL2
6
7
TDFN33-12
(Top View)
C1+
C1+
1
12
C2-
OUT
OUT
2
11
GND
IN
3
10
C1-
C2+
4
9
BL4
EN/SET
5
8
BL3
BL1
6
7
BL2
IN
BL1
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Absolute Maximum Ratings
TA = 25°C, unless otherwise noted.
Symbol
VIN
VOUT
VEN/SET
VEN/SET(MAX)
IOUT
TJ
Description
Input Voltage
Charge Pump Output
EN/SET to GND Voltage
Maximum EN/SET Voltage
Maximum DC Output Current (sum of IOUT and D currents)
Operating Junction Temperature Range
Value
Units
-0.3 to 6
-0.3 to 6
-0.3 to 6
VIN + 0.3
120
-40 to 150
V
V
V
V
mA
°C
Value
Units
Thermal Information1
Symbol
Description
θJA
Maximum Thermal Resistance2
PD
Maximum Power Dissipation2
TJ
Operating Junction Temperature Range
TSOPJW-12
TDFN33-12
TSOPJW-12
TDFN33-12
160
50
625
2
-40 to 150
°C/W
mW
W
°C
1. Mounted on an FR4 board.
2. Derate 6.25mW/°C above 25°C.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
3
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Electrical Characteristics
VIN = 3.6V; CIN = COUT = 1µF; C1= C2 = 1µF; TA = -40°C to 85°C unless otherwise noted. Typical values are TA = 25°C.
Symbol
Parameter
Conditions
Input Power Supply
VIN
Input Voltage Range
IQ
ISHDN
VIN_(TH)
Operating Current
VIN Shutdown Current
Charge Pump Mode Hysteresis
Min Typ Max Units
2.7
EN/SET = IN; 1x Mode, VD1 = VD2 = VD3; VD4 = 1V
EN/SET = IN; 1.5x Mode, ID1 = ID2 = ID3; ID4 = Open
EN/SET = GND
1x to 1.5x Transition at Any IDX; ID1 = ID2 = ID3;
ID4 = 20mA
1.8
4.8
TSD
Thermal Shutdown Threshold
TSD(HYS)
Thermal Shutdown Hysteresis
LED Current Sink Outputs
I(D-ACC)
I(D-Match)
VD_(TH)
LED Current Accuracy
LED Current Matching1
Hysteresis for Mode Change
Charge Pump Maximum
IDMAX
Output Current
fOSC
Clock Frequency
Charge Pump Mode Transition
VBL_(TH)
Threshold
tSS
Charge Pump Start Up Time
EN/SET and S2Cwire Control
EN/SET Input High Threshold
VENH
Voltage
EN/SET Input Low Threshold
VENL
Voltage
tEN/SET(HI_MIN) EN/SET Minimum High Time
tEN/SET(HI_MAX) EN/SET Maximum High Time
tEN/SET(LOW)
EN/SET Input Low Time
t EN/SET(OFF)
EN/SET Input OFF Timeout
tEN/SET(LAT)
EN/SET Input Latch Timeout2
EN/SET = DATA1
EN/SET = DATA31
IMLED = 20mA
IMLED = 20mA at 1.5x to 1x Mode
18
0.52
5.5
7.0
7.2
1
mA
µA
0.15
V
140
15
°C
°C
20
0.64
±3
0.15
22
0.78
0.25
mA
%
V
120
mA
1
MHz
0.15
V
150
µs
1.4
V
0.4
V
75
75
500
500
ns
µs
µs
µs
µs
50
0.3
1. LED current match is defined as 100 (IDX - IAVG)/IAVG.
2. If the part has been shut down, then the latch time would be 500µs longer for soft start of charge pump.
4
V
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Typical Characteristics
VIN = 3.6V, CIN = COUT = C1 = C2 = 1μF; TA = 25°C, unless otherwise noted.
No Load Operating Current (1.5x Mode)
vs. Input Voltage
No Load Operating Current (1x Mode)
vs. Input Voltage
4.4
1.8
4.2
1.7
IQ (mA)
IQ (mA)
4.0
3.8
85°C
60°C
40°C
25°C
0°C
-20°C
-40°C
3.6
3.4
3.2
3.0
2.7
3.1
3.5
3.9
4.3
85°C
60°C
40°C
25°C
0°C
-20°C
-40°C
1.5
1.4
4.7
5.1
1.3
5.5
Input Voltage (V)
2.7
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
1.5X Mode Output Voltage vs. Output Current
5.2
0.8
Output Voltage (V)
VIN = 5.5V
0.7
0.6
0.5
0.4
0.3
VIN = 2.7V
0.2
0.1
5.1
-40
-15
10
35
60
4.9
4.8
VIN = 3.3V
4.7
4.6
85
Temperature (°C)
VIN = 3.6V
5
4.5
0.0
0
60
80
100
120
(Code 1, BL = 20mA)
100
100
85
Efficiency (%)
VF = 3.3V
VF = 3V
VF = 2.7V
70
55
2.7
40
Efficiency vs. Input Voltage
(Code 26, ILED = 3.8mA)
40
20
Output Current (mA)
Efficiency vs. Input Voltage
Efficiency (%)
3.1
Shutdown Current vs. Temperature
ISHDN (µA)
1.6
3.1
3.5
3.9
4.3
Input Voltage (V)
4.7
5.1
85
70
55
40
2.7
5.5
VF = 3.3V
VF = 3V
VF = 2.7V
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
5
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Typical Characteristics
VIN = 3.6V, CIN = COUT = C1 = C2 = 1μF; TA = 25°C, unless otherwise noted.
EN/SET Input Latch Timeout vs. Input Voltage
EN/SET Input OFF Timeout vs. Input Voltage
400
350
350
tEN/SET(OFF) (µs)
tEN/SET(LAT) (µs)
300
250
200
85°C
25°C
-40°C
150
3.1
3.5
3.9
4.3
4.7
5.1
250
200
100
2.7
5.5
Input Voltage (V)
1.0
20.5
VENH (V)
Output Current (mA)
21.0
20.0
19.5
BL4
BL3
BL2
BL1
19.0
20
30
40
50
60
70
80
3.9
4.3
4.7
0.6
-40°C
25°C
85°C
0.2
90
2.7
3.1
3.5
3.9
4.3
4.7
1x Mode Turn-On Waveform
(VIN = 3.6V; Load = 80mA)
1.2
EN
(2V/div)
VENL (V)
1.0
VOUT
(4V/div)
VBL
(4V/div)
0.8
0.6
-40°C
25°C
85°C
3.1
3.5
3.9
4.3
Input Voltage (V)
6
4.7
5.1
Input Voltage (V)
EN Input Low Threshold Voltage
vs. Input Voltage
0.2
2.7
5.1
5.5
0.8
0.4
Temperature (°C)
0.4
5.1
EN Input High Threshold Voltage
vs. Input Voltage
1.2
10
3.5
Input Voltage (V)
21.5
0
3.1
Output Current Matching Over Temperature
18.5
-40 -30 -20 -10
85°C
25°C
-40°C
150
100
2.7
300
IIN
(200mA/div)
0
0
0
0
5.5
Time (100µs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
5.5
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Typical Characteristics
VIN = 3.6V, CIN = COUT = C1 = C2 = 1μF; TA = 25°C, unless otherwise noted.
1.5x Mode Load Characteristics
1.5x Mode Turn-On Waveform
(VIN = 3.3V; 80mA Load)
VOUT
(2V/div)
(VIN = 3.3V; 80mA Load)
VOUT (AC)
(50mV/div)
VBL
(2V/div) 0
0
C1N
(2V/div)
EN 0
(2V/div)
C2N
(2V/div)
IIN
(200mA/div) 0
VIN (AC)
(20mV/div)
Time (100µs/div)
0
0
0
0
Time (800ns/div)
1.5x Mode Turn-Off
(VIN = 3.3V; Load = 80mA)
VF
(1V/div)
0
EN
(1V/div)
0
IIN
(100mA/div) 0
Time (200µs/div)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
7
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Functional Block Diagram
IN
C1+
Dual-mode
Charge Pump
1X/1.5X
C1C2+
OUT
C24
EN/SET
32-step S2Cwire
Backlight Control
BL1
BL2
Control
Logic
BL3
BL4
GND
Functional Description
Application Information
The AAT3340 is a high efficiency charge pump white LED
driver for portable applications. It can drive 4 white
LEDs.
Current Level Settings
When the input voltage is high enough, the AAT3340
operates in 1x mode to provide maximum efficiency. If
the input voltage is too low to supply programmed LED
current, typically when the battery discharges and the
voltage decays, a 1.5x mode is automatically enabled.
When the battery is connected to a charger and the input
voltage become high enough again, the device will
switch back to 1x mode.
The current sink magnitude is controlled by the EN/SET
serial data S2Cwire interface. The interface records rising
edges of the EN/SET pin and decodes them into 32 individual current level settings.
8
LED current level is set via Skyworks' Simple Serial
Control (S2Cwire) interface in a linear scale where each
code is 0.6mA smaller than the previous code, as shown
in Figure 1. In this manner, the LED current decreases
linearly with each increasing code.
LED Current vs. S2C Data
(VF = 3.0V @ 20mA)
25
LED Current (mA)
The AAT3340 is a fractional charge pump and can multiply
the input voltage by 1 or 1.5 times. The charge pump
switches at a fixed frequency of 1MHz. The internal-modeselection-circuit automatically switches the mode between
1x and 1.5x mode base on the input voltage, output voltage and load current. This mode switching maximizes the
efficiency throughout the entire load range.
20
15
10
5
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1718 19 20 21 22 23 24 25 26 27 28 29 30 31 32
S2C Code
Figure 1: LED Current Level vs. Simple Serial
Control (S2Cwire).
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
S2Cwire
Data
LED Current
(mA)
S2Cwire
Data
LED Current
(mA)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
20.0
19.4
18.7
18.1
17.4
16.8
16.1
15.5
14.8
14.2
13.6
12.9
12.3
11.6
11.0
10.3
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
9.7
9.0
8.4
7.7
7.1
6.5
5.8
5.2
4.5
3.9
3.2
2.6
1.9
1.3
0.6
0.3
put current at the programmed level. The device is disabled 500μs after the EN/SET pin enters 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 enabled and reaches full
capacity after the soft-start time (TSS). Exact counts of
clock pulses for the desired current level should be
entered on the EN/SET pin with a single burst of clocks.
The counter refreshes each time a new clock input to the
EN/SET pin is detected. A constant current is sunk as
long as EN/SET remains in a logic high state. The current
sink pins are switched off after EN/SET has remained low
state for at least the tOFF timeout period (see Figure 1).
LED Selection
The AAT3340 is designed to drive white LEDs with forward voltages up to 4.8V. Since BL1 through BL4 output
current sinks are matched with negligible voltage dependence; the LED brightness will be matched regardless of
their forward voltage matching.
Table 2: S2C Data vs LED Current.
EN/SET Serial Interface
The LED current magnitude is controlled by the EN/SET
pin using the S2Cwire interface. The interface records
rising edges of the EN/SET pin and decodes them into 32
individual current level settings. Code 1 is full scale, and
Code 32 is 0.3mA. The modulo 32 interface wraps states
back to state 1 after the 32nd clock. 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 current to full scale,
the lowest setting equal to 0.3mA. Once the final clock
cycle is input for the desired brightness level, the EN/
SET pin should be held high to maintain the device out-
The AAT3340 operates at a fixed frequency of 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
AAT3340 soft-start feature prevents noise transient
effects associated with inrush currents during startup of
the charge pump circuit.
tLO
t HI
OFF
Device Switching Noise Performance
1
tOFF
2
3
OFF
Figure 2: EN/SET Timing Diagram.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
9
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Power Efficiency and Device Evaluation
The charge pump efficiency discussion in the following
sections accounts only for efficiency of the charge pump
section itself. Due to the unique circuit architecture and
design of the AAT3340, it is very difficult to measure
efficiency in terms of a percent value comparing input
power over output power. Since the AAT3340 outputs
are pure constant current sinks and typically drive individual loads, it is difficult to measure the output voltage
for a given output 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
AAT3340 efficiency may be quantified under specific
conditions and is dependent upon the input voltage and
voltage on BL outputs BL1 through BL4 for a given constant current setting.
At any given current setting, if VIN is sufficiently high to
avoid drop-out for all the BL pin in 1x mode, the device
stays in 1x mode. If in 1x mode, Vin is less than the
voltage required on any of the 4 current sink channels to
avoid drop-out, the device will operate in 1.5x charge
pump mode. Each of these two modes will yield different
efficiency values.
The AAT3340 contains a fractional charge pump which
will boost the input supply voltage when VIN is less than
the voltage required on the constant current sink pins.
The ideal efficiency (η) can be defined as:
η=
PLED VF · ILED
=
PIN
VIN · IIN
VF is the LED forward voltage.
In 1x mode, IIN = ILED + IQ.
Ignore the quiescent current, it’s much smaller than ILED.
10
η=
VF · ILED
VIN · IIN
In 1.5X mode, IIN = 1.5 · ILED + IQ.
Ignore the quiescent current, it’s much smaller than ILED.
η=
VF · ILED
VIN · 1.5 · IIN
Please also refer to the Typical Characteristics section of
this document 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 turnon time, output ripple, and transient performance.
Optimum performance will be obtained when low equivalent series resistance (ESR) 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 sinks are only programmed for low current levels,
then the capacitor size may be decreased.
Test Current/Channel Disable
Each current sink channel is equipped with a test current
function. While it has been enabled, the AAT3340
automatically detects the presence of LEDs all the time.
Unused channels that are tied to OUT or LED loads that
have failed will be automatically disabled.
Capacitor Characteristics
Ceramic composition capacitors are highly recommended over all other types of capacitors for use with the
AAT3340. Ceramic capacitors offer many advantages
over their tantalum and aluminum electrolytic counterparts. A ceramic capacitor 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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
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.
Capacitors with large 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
AAT3340 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.
Thermal Protection
The AAT3340 has a built-in thermal protection circuit
that will shut down the charge pump if the die temperature rises above the thermal limit, as is generally the
case during short-circuit event of the VOUT pin.
Evaluation Board Layout
When designing a PCB for the AAT3340, the key requirements are:
1. Place the two flying capacitors, C1 and C2, as close
to the chip as possible, otherwise the 1.5X mode
performance will be compromised.
2. Place the input and output decoupling capacitors as
close to the chip as possible to reduce switching
noise and output ripple.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
11
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
AAT3340 Evaluation Board Schematic
DC-
C2
1µF
J1
DC+
DC+
C8
10µF
1
2
COUT
1µF
C2+ C2-
3
C1
1µF
C1+ C1-
1
2
3
4
5
6
VIN
JP1
CIN
1µF
U1
CPO
AAT3340
C1P
CPO
VIN
C2P
EN/SET
BL1
C2N
GND
C1N
BL4
BL3
BL2
D4
12
11
10
9
8
7
BL4
BL3
BL2
D3
D2
D1
R12
0
R9 0
R10 0
R11 0
BL1
EXP PAD
EN/SET
+3.3V
R5
1K
20K
S2C
R4 R3
1K 1K
S1
S1
UP
GND
R2
JP5
C6
4.7µF
U2 PIC12F675
1
2
3
4
VDD
GP5
GP4
GP3
VSS
GP0
GP1
GP2
VR1
POT10K
8
7
6
5
C4
R7
0.1µF 330
LED2
Red
R6
330
S2
S2
DOWN
LED1
Green
S3
S3
CYCLE
Figure 3: AAT3340 Evaluation Board Rev.1A Schematic.
12
Figure 4: AAT3340 Evaluation Board Rev.1A PCB Component Side Layout.
Figure 5: AAT3340 Evaluation Board Rev.1A
Solder Side Layout.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
Ordering Information
Interface
Current Control
Package
Marking
Part Number(Tape & Reel)
S2Cwire
S2Cwire
32-step
32-step
TSOPJW-12
TDFN33-12
2GXYY
2HXYY
AAT3340ITP-1-T1
AAT3340IWP-1-T1
Skyworks Green™ products are compliant with
all applicable legislation and are halogen-free.
For additional information, refer to Skyworks
Definition of Green™, document number
SQ04-0074.
Package Information
TSOPJW-12
2.85 ± 0.20
2.40 ± 0.10
0.20 + 0.10
- 0.05
0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC 0.50 BSC
7° NOM
0.055 ± 0.045
0.04 REF
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.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012
13
DATA SHEET
AAT3340
High Efficiency 1x/1.5x Charge Pump
TDFN33-12
Index Area
0.43 ± 0.05
Detail "A"
0.45 ± 0.05
2.40 ± 0.05
3.00 ± 0.05
0.1 REF
C0.3
3.00 ± 0.05
1.70 ± 0.05
Top View
Bottom View
0.23 ± 0.05
Pin 1 Indicator
(optional)
0.05 ± 0.05
0.23 ± 0.05
0.75 ± 0.05
Detail "A"
Side View
All dimensions in millimeters.
1.The leadless package family, which includes QFN, TQFN, DFN, TDFN and STDFN, has exposed copper (unplated) at the end of the lead terminals due to the manufacturing
process. A solder fillet at the exposed copper edge cannot be guaranteed and is not required to ensure a proper bottom solder connection.
Copyright © 2012 Skyworks Solutions, Inc. All Rights Reserved.
Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a
service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no
responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes.
No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale.
THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR
PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES
NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM
THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper
use or sale.
Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product
design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.
Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for
identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.
14
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
202165A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 12, 2012