Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 1
DATA SHEET
AAT3693: 1.6 A Li-Ion/Polymer Battery Charger
Applications
Bluetooth™ headsets
Cell phones
Digital still cameras
MP3 players
Personal data assistants (PDAs)
Other Li-Ion battery powered devices
Features
USB or AC adapter system power charger
Programmable from 100 mA to 1.6 A max.
Input voltage range: 4.0 V 7.5 V
High level of integration with internal:
Charging device
Reverse blocking diode
Current sensing
Digitized thermal regulation
Charge current programming (ISET)
Charge termination current programming (TERM)
Charge timer (CT)
Battery temperature sensing (TS)
No-battery detection
TS pin open detection
Automatic recharge sequencing
Full battery charge auto turn off/sleep mode/charge termination
Shutdown current < 6 A
Automatic trickle charge for battery preconditioning
Over-voltage and over-current protection
Emergency thermal protection
Power-on reset and soft start
2.2 x 2.2 TDFN Package
TDFN (10-pin, 2.2 mm 2.2 mm) package (MSL1, 260 ºC per
JEDEC J-STD-020)
Description
The AAT3693 BatteryManager is a highly integrated single-cell
lithium-ion/polymer (Li-Ion) battery charger that operates from a
USB port or an AC adapter input with up to 7.5 V input voltage.
The AAT3693 precisely regulates battery charge voltage and
current for 4.2 V Li-Ion battery cells. The battery charging current
can be set by an external resistor up to 1.6 A. Digital Thermal
Loop Control maintains the maximum possible battery charging
current for the given set of input to output power dissipation and
ambient temperature conditions.
Battery charge state is continuously monitored for fault
conditions. In the event of an over-current, over-voltage, short-
circuit, or over-temperature condition, the device shuts down
automatically to protect the charging device, the control system,
and the battery under-charge. A status monitor output pin is
provided to indicate the battery charge status by directly driving
an external LED. An open-drain power source detection output is
provided to report the power supply status. With the "No-Battery
Detection" circuit integrated, the status LEDs indicate that the
battery is not present or not properly installed.
The AAT3693 is available in the Pb-free, thermally enhanced,
space-saving 10-pin, 2.2 mm 2.2 mm TDFN packages and is
specified for operation over the −40 °C to +85 °C temperature
range.
A typical application circuit is shown in Figure 1. The pin
configurations are shown in Figure 2. Signal pin assignments and
functional pin descriptions are provided in Table 1.
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.
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
VIN
AAT3693
BAT
ON/OFF
CT
STAT2
EN
Battery
Pack
TS
STAT1
V
IN
TERM
GND
Temp
BAT +
Cc
T
C
BAT
R
SET
ISET
R
TERM
tc389
Figure 1. AAT3693 Typical Application Circuit
STAT2
GND
EN
VIN
STAT1
TERM
CT
EP
ISET
BAT
TS
3
4
5
1
2
8
7
6
10
8
tc390
Figure 2. AAT3693 Pinout – 10-Pin, 2.2 mm 2.2 mm TDFN
(Top View)
Table 1. AAT3693 Signal Descriptions
Pin No. Name Type Description
1 VIN I Input from USB port/adapter connector.
2 STAT1 O Charge status pin, open-drain.
3 STAT2 O Charge status pin, open-drain.
4 EN I Active high enable pin (with internal pull-down).
5 GND I/O Connect to power ground.
6 CT I Charge timer programming input pin (no timer if grounded).
7 ISET I Charge current programming input pin.
8 TERM I Charge termination current programming input pin (internal default 10% termination current if TERM is open).
9 TS I/O Battery temperature sense pin.
10 BAT O Connect to lithium-ion battery.
EP EP Exposed paddle (bottom): connect to ground as closely as possible to the device.
Electrical and Mechanical Specifications
The absolute maximum ratings of the AAT3693 are provided in
Table 2, the thermal information is listed in Table 3, and electrical
specifications are provided in Table 4.
Typical performance characteristics of the AAT3693 are illustrated
in Figures 3 through 24.
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 3
Table 2. AAT3693 Absolute Maximum Ratings (Note 1)
Parameter Symbol Minimum Typical Maximum Units
IN continuous VIN 0.3 8.0 V
BAT, STAT1, STAT2, EN, ISET, TS VBAT, VSTAT1, VSTAT2, VEN, VISET, VTS 0.3 VIN + 0.3 V
Junction temperature range TJ 40 +150 ºC
Operating temperature range TOP 40 +85 ºC
Maximum soldering temperature (at leads) TLEAD 300 ºC
Note 1: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed may result in permanent damage to the device.
Table 3. AAT3693 Thermal Information
Parameter Symbol Value Units
Maximum thermal resistance (Note 1) JA 50 ºC/W
Maximum power dissipation (Note 2) PD 2 W
Note 1: Mounted on an FR4 board.
Note 2: At 25 C ambient temperature.
CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Table 4. AAT3693 Electrical Specifications (1 of 2) (Note 1)
(VIN = 5.5 V, TA = –40 C to +85C, RSET = 1.47 k, RTERM = OPEN. Unless Otherwise Noted, Typical Values are TA = 25 C)
Parameter Symbol Test Condition Min Typical Max Units
Operation
Input voltage range VIN 4.0 7.5 V
Under-voltage lockout threshold VUVLO Rising edge 3 4 V
UVLO hysteresis 150 mV
Operating current IOP Charge current = 100 mA 0.3 1 mA
Sleep mode current ISLEEP VBAT = 4.25 V or EN = GND 0.4 1 A
Leakage current from BAT pin ILEAKAGE VBAT = 4 V, VIN pin open 0.4 2 A
Current Regulation
Charge current programmable range ICC(RANGE) 100 1600 mA
Constant-current mode charge current ICC/ICC VBAT = 3.6 V −10 +10 %
ISET pin voltage VISET 2 V
Charge current set factor: ICH_CC/IISET KI_SET Constant current mode, VBAT = 3.6 V 800
TERM pin voltage VTERM RTERM = 13.3 k 2 V
Trickle charge current ICH_TRK/ICC 5 10 15 %ICH_CC
Charge termination threshold current ICH_TERM/ICC TERM pin open 5 10 15 % ICH_CC
RTERM = 13.3 k, ICC 800 mA 8 10 12 %
Voltage Regulation
Constant output voltage VCO(REG) 4.158 4.20 4.242 V
Constant output voltage tolerance VCO/VCO 0.5 %
Preconditioning voltage threshold VMIN (Option available for no trickle charge) 2.5 2.6 2.9 V
Battery recharge voltage threshold VRCH VBAT_REG − 0.1 V
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
4 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
Table 4. AAT3693 Electrical Specifications (2 of 2) (Note 1)
(VIN = 5.5 V, TA = –40 C to +85C, RSET = 1.47 k, RTERM = OPEN. Unless Otherwise Noted, Typical Values are TA = 25 C)
Parameter Symbol Test Condition Min Typ Max Units
Charging Devices
Charging transistor on-resistance RDS(ON) VIN = 4.6 V, VBAT = 4.0 V, Charge current = 1 A 0.6
Logic Control/Protection
Input high threshold VEN(H) 1.6 V
Input low threshold VEN(L) 0.4 V
STAT pin output voltage VSTAT STAT pin sinks 4 mA 0.4 V
STAT pin current sink capability ISTAT 8 mA
Over-voltage protection threshold VOVP 4.4 V
Over-current protection threshold IOCP (In constant voltage mode) 105 %ICH_CC
TS voltage range for no battery indication TSNOBAT VIN − 50 mV V
Option for AA, AC, AI, AK (Note 2)
Trickle time out tK CCT = 0.1 F, VIN = 5 V 25 minutes
CC + CV mode time out tC + tV CCT = 0.1 F, VIN = 5 V 3 hours
Option for AB, AD, AJ, AK (Note 2)
No trickle charge tK 0 minutes
CC + CV mode time out tC + tV CCT = 0.1 F, VIN = 5 V 3 hours
Option for AE, AG (Note 2)
Trickle time out tK CCT = 0.1 F, VIN = 5 V 25 minutes
CC mode time out tC CCT = 0.1 F, VIN = 5 V 1 hours
CV mode time out tV CCT = 0.1 F, VIN = 5 V 2 hours
Option for AF, AH (Note 2)
No trickle charge tK 0 minutes
CC mode time out tC CCT = 0.1 F, VIN = 5 V 1 hours
CV mode time out tV CCT = 0.1 F, VIN = 5 V 2 hours
Option for AC, AD, AG, AH, AK, AL, BO, BP (Note 2)
Current source from TS pin ITS 75 A
High temperature threshold VTS1 Threshold 331 mV
Hysteresis 25 mV
Low temperature threshold VTS2 Threshold 2.39 V
Hysteresis 25 mV
Option for AA, AB, AE, AF, AI, AJ, BM, BN (Note 2)
High temperature threshold VTS1 29.1 30 30.9 %VIN
Low temperature threshold VTS2 58.2 60 61.8 %VIN
Thermal loop entering threshold TLOOP_IN 115 ºC
Thermal loop exiting threshold TLOOP_OUT 85 ºC
Thermal loop regulation TREG 100 ºC
Chip thermal shutdown temperature TSHDN Threshold 140 ºC
Note 1: Performance is guaranteed only under the conditions listed in this table.
Note 2: Only options AA, AB, AI and AJ have been released.
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 5
Typical Performance Characteristics
(VIN = 5.5 V, TA = –40 C to +85C, RSET = 1.47 k, RTERM = OPEN. Unless Otherwise Noted, Typical Values are TA = 25 C)
RSET (kΩ
Ω
)
Charging Current (mA)
1
10
100
1000
10000
1100.1 100 1000
Constant Charging Current
Pre-conditioning Current
tc391
Figure 3. Charging Current vs RSET Values
Input Voltage (V)
Δ
Δ
V
CO
/V
CO
(%)
4.5 5 5.5 66.5 7 7.5
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
tc393
Figure 5. Battery Charger Constant Output Voltage Accuracy
vs Input Voltage (Battery Voltage = 4.2 V)
Temperature (°C)
Preconditioning Charge Current (mA)
-40 -15 10 35 6085
155
157
159
161
163
165
tc395
Figure 7. Preconditioning Charge Current vs Temperature
(RSET = 866 )
Battery Voltage (V)
Charging Current (A)
2.5 2.7 2.93.1 3.3 3.5 3.7 3.94.1 4.3
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
R
SET
= 866 Ω
R
SET
= 1.47 kΩ
R
SET
= 3.16 kΩ
R
SET
= 8.06 kΩ
tc392
Figure 4. Charging Current vs Battery Voltage
Temperature (°C)
V
CO
(
REG
)
(V)
-40 -15 10 35 6085
4.18
4.19
4.2
4.21
4.22
tc394
Figure 6. Battery Charger Constant Output Voltage
vs Temperature
Temperature (°C)
VMIN (V)
-40 -15 10 35 6085
2.4
2.45
2.5
2.55
2.6
2.65
2.7
tc396
Figure 8. Preconditioning Voltage Threshold vs Temperature
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
6 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
Input Voltage (V)
ICH_TRK (mA)
4 4.5 5 5.5 66.5 7 7.5
0
25
50
75
100
125
150
175
200
225
250
RSET = 866 Ω
RSET = 1.47 kΩ
RSET = 3.16 kΩ
RSET = 8.06 kΩ
tc423
Figure 9. Preconditioning Charge Current vs Input Voltage
Input Voltage (V)
Constant Charging Current (mA)
4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
1300
1400
1500
1600
1700
1800
V
BAT
= 3.3 V
V
BAT
= 3.6 V
V
BAT
= 3.9 V
V
BAT
= 4.1 V
tc399
Figure 11. Constant Charging Current vs Input Voltage
(RSET = 866 )
Temperature (°C)
Low Temperature Threshold V
TS
2
(V)
-40 -15 10 35 6085
2.32
2.34
2.36
2.38
2.4
2.42
2.44
2.46
tc401
Figure 13. Low Temperature Threshold vs Temperature
(for Option AC, AD, AG, AH, AK, AL, BO, BP)
Temperature (°C)
V
RCH
(V)
-40 -15 10 35 6085
4.04
4.06
4.08
4.10
4.12
4.14
tc398
Figure 10. Battery Recharge Voltage Threshold vs Temperature
Temperature (°C)
I
TS
(μA)
-40 -15 10 35 6085
68
70
72
74
76
78
tc400
Figure 12. Current Source at the TS Pin vs Temperature
(for Option AC, AD, AG, AH, AK, AL, BO, BP)
Temperature (°C)
-40 -15 10 35 6085
0.32
0.325
0.33
0.335
0.34
0.345
High Temperature Threshold V
TS1
(V)
tc402
Figure 14. High Temperature Threshold vs Temperature
(for Option AC, AD, AG, AH, AK, AL, BO, BP)
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 7
Temperature (°C)
-40 -15 10 35 6085
2.97
2.98
2.99
3
3.01
3.02
Low Temperature Threshold VTS
2
(V)
tc403
Figure 15. Low Temperature Threshold vs Temperature
(for Option AA, AB, AE, AF, AI, AJ, BM, BN; VIN = 5 V)
Operating Current (mA)
1100.1 100 1000
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Constant Charging Current
Pre-conditioning Current
R
SET
(k
Ω
)
tc405
Figure 17. Operating Current vs ISET Resistor
Temperature (°C)
Counter Timeout (%)
-40 -15 10 35 6085
-0.10
-0.05
0.00
0.05
0.10
tc407
Figure 19. Counter Timeout vs Temperature (CCT = 0.1 F)
Temperature (°C)
-40 -15 10 35 6085
1.47
1.48
1.49
1.5
1.51
1.52
High Temperature Threshold VTS
1
(V)
tc404
Figure 16. High Temperature Threshold vs Temperature
(for Option AA, AB, AE, AF, AI, AJ, BM, BN; VIN = 5 V)
Input Voltage (V)
I
SHDN
(μA)
4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
85 °C
25 °C
−40 °C
tc406
Figure 18. Shutdown Current vs Input Voltage
Time (hours)
Capacitance (μF)
01 2 345
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Preconditioning Timeout
Preconditioning + Constant Current
Timeout or Constant Voltage Timeout
tc408
Figure 20. CT Pin Capacitance vs Counter Timeout
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
8 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
ITERM Resistance (kΩ)
ICH_TERM/ICC (%)
0102030405060
0%
10%
20%
30%
40%
50%
tc409
Figure 21. Termination Current to Constant Current Ratio (%)
vs Termination Resistance
Input Voltage (V)
V
EN(H)
(V)
4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
85 °C
25 °C
−40 °C
tc411
Figure 23. Input High Threshold vs Input Voltage
Input Voltage (V)
R
DS(ON)
(Ω)
3.63.94.2 4.5 4.8 5.1
200
250
300
350
400
450
500
550
600
85 °C
25 °C
−40 °C
tc410
Figure 22. Charging Transistor On Resistance vs Input Voltage
4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
85 °C
25 °C
−40 °C
tc412
Input Voltage (V)
V
EN(L)
(V)
Figure 24. Input High Threshold vs Input Voltage
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 9
Charge
Control
Current
Comparator
Reverse Blocking
CV/Pre-charge
Constant
Current
IN BAT
ISET
UVLO
Over-Temp.
Protect
STAT1
GND
EN
Thermal
Loop
Charge
StatusSTAT2
Battery OV Protection
Watchdog
Timer
CT
TERM
TS
tc413
Figure 25. AAT3693 Functional Block Diagram
Functional Description
A functional block diagram is shown in Figure 25.
The AAT3693 is a high-performance battery charger designed
to charge single-cell lithium-ion or lithium-polymer batteries
with up to 1.6 A of current from an external power source. It is a
standalone charging solution, with just one external component
required for complete functionality.
The AAT3693 precisely regulates battery charge voltage and
current for 4.2 V lithium-ion/polymer battery cells with constant
current level being programmed up to 1.6 A for rapid charging
applications. The charge termination current can be
programmed by an external resistor.
The AAT3693 is rated for operation from −40 °C to +85 °C. In
the event of operating ambient temperatures exceeding the
power dissipation abilities of the device package for a given
constant current charge level, the charge control enters into
thermal limit.
The AAT3693 provides two status monitor output pins (STAT1
and STAT2) which directly drive two external LEDs to indicate
the battery charging state. With no-battery detection and status
indication, the user can be notified if the battery is not inserted
properly.
Device junction temperature and charge state are fully
monitored for fault conditions. In the event of an over-voltage or
over-temperature failure, the device automatically shuts down
to protect the charging device, control system and the battery
under-charge.
During battery charging, the device temperature rises. In some
cases with adapter charging, the power dissipation in the
device may cause the junction temperature to rise closer to its
thermal shutdown threshold.
In the event of an internal over-temperature condition caused by
excessive ambient operating temperature or excessive power
dissipation condition, the AAT3693 enables a digitally controlled
thermal loop system to reduce the charging current to prevent
the device from thermal shutdown. The digital thermal loop
maintains the maximum possible battery charging current for
the given set of input to output power dissipation and ambient
temperature conditions.
The digital thermal loop control is dynamic in the sense that it
continues to adjust the battery charging current as operating
conditions change.
The digital thermal loop resets and resumes normal operation
when the power dissipation or over-temperature conditions are
removed.
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
10 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
Charging Operation
Figure 26 illustrates the entire battery charging profile or
operation, which consists of four phases:
1. Preconditioning (Trickle) Charge
2. Constant Current Charge
3. Constant Voltage Charge
4. Automatic Recharge
Battery Preconditioning
Battery charging commences only after the AAT3693 checks
several conditions in order to maintain a safe charging
environment. The input supply must be above the minimum
operating voltage (VUVLO) and the enable pin must be high.
When the battery is connected to the BAT pin, the AAT3693
checks the condition of the battery and determines which
charging mode to apply. If the battery voltage is below the
preconditioning voltage threshold, VMIN, the AAT3693 begins
preconditioning the battery cell (trickle charging) by charging at
10% of the programmed constant current. For example, if the
programmed current is 500 mA, the preconditioning mode
(trickle charge) current is 50 mA. Battery cell preconditioning
(trickle charging) is a safety precaution for deeply discharged
cells and also reduces the power dissipation in the internal
series pass MOSFET when the input-output voltage differential
is at the greatest potential.
Constant Current Charging
Battery cell preconditioning continues until the battery voltage
reaches the preconditioning voltage threshold, VMIN. At this
point, the AAT3693 begins constant current charging. The
current level for this mode is programmed using a single
resistor from the ISET pin to ground. Programmed current can
be set from a minimum of 100 mA up to a maximum of 1.6 A
Constant Voltage Charging
Constant current charging continues until the battery voltage
reaches the constant output voltage (end of charge) voltage
regulation point, VCO(REG). When the battery voltage reaches
VCO(REG), the AAT3693 will transition to constant voltage mode.
The regulation voltage is factory programmed to a nominal
4.2 V and continues charging until the charge termination
current is reached.
Constant Current
Charge Phase
Preconditioning
Trickle Charge
Phase
Charge Complete Voltage
Constant Current Mode
Voltage Threshold
Regulated Current
Trickle Charge and
Termination Threshold
I = CC/10
I = Max CC Battery Recharge
Voltage Threshold
Battery Discharge
Constant Voltage
Charge Phase
Constant Volta ge
Charge Phase
tc414
Figure 26 . Current vs Voltage Profile during Charging Phases
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 11
Reset
Power Input
Voltage
V
IN
> V
UVLO
V
TS1
< V
TS
< V
TS2
Fault Conditions
Monitoring
OV, OT,
Preconditioning
Test
Current Phase Test
Voltage Phase Test
I
CHARGE
> I
CH
_
TERM
No
No
Yes
Yes
Preconditioning
(Trickle Charge)
Constant
Current Charge
Mode
Constant
Voltage Charge
Mode
Yes
Yes
Yes
Charge Completed
Charge Timer
Counter
Expired
No
Recharge Test Yes
No
Yes
Enable
Yes
No
Device Thermal
Thermal Loop
Current Reduction
in CC Mode
Loop Monitor
T
J
> 115 ºC
Enable
Shut Down
No
No
Shut Down
No
Power On
Power Input
Voltage
And EN = High
Yes
No
Yes
Charge
Suspended
Reset
V
IN
> V
UVLO
V
MIN
> V
BAT
V
CO
> V
BAT
V
BAT
< V
RCH
tc415
Figure 27. System Operation Flowchart for the Battery Charger
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
12 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
Application Information
Adapter or USB Power Input
Constant current charge levels up to 1.6 A can be programmed
by the user when powered from a sufficient input power source.
The AAT3693 operates from the adapter input over a 4.0 V to
7.5 V range. The constant current mode fast charge current for
the adapter input is set by the RSET resistor connected between
ISET and ground. Refer to Table 5 for recommended RSET values
for a desired constant current charge level; values are rounded
off to 1% standard resistance values.
Automatic Recharge
The AAT3693 has a UVLO and power-on reset feature so that if
the input supply to the VIN pin drops below the UVLO threshold,
the charger suspends charging and shuts down. When power is
reapplied to the IN pin or the UVLO condition recovers, the
system charge control assesses the state of charge on the
battery cell and automatically resumes charging in the
appropriate mode for the condition of the battery.
Enable / Disable
The AAT3693 provides an enable function to control the charger
IC on and off. The enable (EN) pin is internally pulled down.
When pulled to a logic high level, the AAT3693 is enabled.
When left open or pulled to a logic low level, the AAT3693 is
shut down. Charging is halted regardless of the battery voltage
or charging state. When the device is re-enabled, the charge
control circuit automatically resets and resumes charging
functions with the appropriate charging mode based on the
battery charge state and measured cell voltage on the BAT pin.
Programming Charge Current
The constant current mode charge level is user programmed
with a set resistor placed between the ISET pin and ground. The
accuracy of the constant charge current, as well as the
preconditioning trickle charge current, is dominated by the
tolerance of the set resistor used. For this reason, a 1%
tolerance metal film resistor is recommended for the set
resistor function. The constant charge current levels from
100 mA to 1.6 A can be set by selecting the appropriate resistor
value from Table 5. The relationship between the charging
current and the RSET values is shown in Figure 3.
Table 5. Constant Charging Current vs RSET
Constant Charging Current (mA) RSET (k)
100 16.5
200 8.06
300 5.36
400 4.02
500 3.16
600 2.67
700 2.26
800 1.87
900 1.78
1000 1.47
1250 1.18
1600 0.866
Programmable Charge Termination Current
The AAT3693 provides a user-programmable charge
termination current at the end of the charge cycle. When the
battery cell voltage sensed by the BAT pin reaches 4.2 V, the
charge control transitions from constant current fast charge
mode to constant voltage mode. In constant voltage mode, the
battery cell voltage is regulated at 4.2 V. The charge current
drops as the battery reaches its full charge capacity. When the
charge current drops to the programmed end of charge VCO(REG)
current, the charge cycle is complete and the charge controller
terminates the charging process.
If the TERM pin is left open, the termination current sets to 10%
of the constant charging current as the default value.
The charge termination current ICH_TERM can be programmed by
connecting a resistor from TERM to GND. Use the values listed
in Table 6 to set the desired charge termination current. The
relationship between the charging termination threshold current
and the RSET values is shown as Figure 21.
Table 6. Charge Termination Threshold Current Programming
Resistor Values
RTERM (k) ICH_TERM/ ICC (%)
6.65 5%
13.3 10%
26.7 20%
40.2 30%
53.6 40%
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 13
Table 7. LED Status Indicator (STATx Pulled Up to a Voltage Source with Resistors and LED) (Note 1)
Event Description
All Options Options AA, AB, AE, AF, AI, AJ, BM and BN Options AC, AD, AG, AH, AK, AL, BO and BP
STAT1 STAT2 Type 1 STAT2 Type 2
No battery (with charge enabled) Flash Flash Flash
Battery charging Low High High
Charge complete High Low High
Fault condition High High Low
Note 1: Low = LED ON; High = LED OFF.
If the desired end of charge termination current level is not
listed in Table 6, the TERM resistor value can be calculated by
the following equation:
CC
TERM
CH_TERM I
VRA
I
2
15
When the charge current drops to the programmed charge
termination current level in the constant voltage mode, the
device terminates charging and goes into a sleep state. The
charger remains in this sleep state until the battery voltage
decreases to a level below the battery recharge voltage
threshold (VRCH).
In such cases where the AAT3693 input voltage drops, the
device enters the sleep state and automatically resumes
charging once the input supply has recovered from the fault
condition. Consuming very low current in the sleep state, the
AAT3693 minimizes battery drain when it is not charging. This
feature is particularly useful in applications where the input
supply level can fall below the battery charge or under-voltage
lockout level.
Charge Status Outputs
The AAT3693 provides battery charge status via two status
pins. These pins are internally connected to an N-channel open-
drain MOSFET, which can be used drive external LEDs. The
status pins can indicate the conditions shown in Table 7.
The AAT3693 has a battery fault detector, which, when used in
conjunction with a 0.1 F capacitor on the CT pin, outputs a
1Hz signal with 50% duty cycle at the STAT1 pin in the event of
a timeout while in the trickle charge mode.
Fault conditions can be one of the following:
Battery over voltage (OV)
Battery temperature sense hot or cold
Battery charge timer time-out
Chip thermal shutdown
Status LED Setup
The LEDs should be biased with as little current as necessary to
create reasonable illumination; therefore, a ballast resistor
should be placed between the LED cathode and the STAT pin
(2 mA should be sufficient to drive most low-cost green or red
LEDs). It is not recommended to exceed 8 mA for driving an
individual status LED. The required ballast resistor values can
be estimated using the following formula:
LED
)LED(FIN
BALLSAT I
VV
R
Example:
k5.1
mA2 V0.2V0.5
RBALLSAT
Note: Red LED forward voltage (VF) is typically 2.0 V @ 2 mA.
Protection Circuitry
No-Battery Detection
After a battery is inserted and the AAT3693 detects the battery,
the regular LED reporting indicates the current charging status
after 5 or 6 flashes. If the battery is not detected, the status
LEDs flash at a frequency of 1 Hz with ~50% duty cycle ratio
continuously on all options (AAT3693 AA, AB, … , BO and BT),
except AI and AJ.
The no-battery detection circuit is not integrated in the
AAT3693 AI or AJ. For these two options, the charger IC treats
the output ceramic capacitor as a battery. Since the
capacitance of the ceramic capacitor is very small, the charge
cycle is shortened and the STAT1 LED stays OFF for a long time
and ON for a very short time. Therefore, the STAT1 LED appears
to always be OFF. In addition, since the ceramic capacitor’s
discharge cycle is much longer than its charge cycle, the STAT2
LED appears to remain ON because the brief OFF phase of the
cycle is so short that the human eye cannot perceive it.
If the thermal sensing TS pin is open, it would be considered as
no battery condition. Please refer to the Battery Temperature
Fault Monitoring section to determine the proper biasing for the
TS pin.
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
14 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
Programmable Watchdog Timer
The AAT3693 contains a watchdog timing circuit to shut down
charging functions in the event of a defective battery cell not
accepting a charge over a preset period of time. Typically, a
0.1 F ceramic capacitor is connected between the CT pin and
ground. When a 0.1 F ceramic capacitor is used, the device
times out a shutdown condition if the trickle charge mode
exceeds 25 minutes. The time-out timer resets at start of the
constant current mode setting the time-out to 1 hour (default).
When the device transitions to the constant voltage mode, the
timing counter is reset and times out after an additional 2 hours
if the charge current does not drop to the charge termination
level for options AE, AF, AG, AH, BM, BN, BO and BP. For all
other options (AA, AB, AC, AD, AI, AJ, AK and AL), the timeout
timer does not reset at every charging mode and times out in 3
hours (default). Table 8 list the time-out options.
Table 8. Watchdog Timer Time-Out Options
Mode Timer Time Units
Trickle Charge (TC) timeout Reset 25 Minute
Constant Current (CC) timeout Reset 1 Hour
Constant Voltage (CV) timeout Reset 2 Hour
Assuming: CCT = 0.1 F and VIN = 5.0 V.
The CT pin is driven by a constant current source and provides
a linear response to increases in the timing capacitor value.
Thus, if the timing capacitor were to be doubled from the
nominal 0.1 F value, the time-out periods would be doubled. If
the programmable watchdog timer function is not needed, it
can be disabled by connecting the CT pin to ground. The CT pin
should not be left floating or unterminated, as this causes errors
in the internal timing control circuit. The constant current
provided to charge the timing capacitor is very small, and this
pin is susceptible to noise and changes in capacitance value.
Therefore, the timing capacitor should be physically located on
the printed circuit board layout as close as possible to the CT
pin. Since the accuracy of the internal timer is dominated by the
capacitance value, a 10% tolerance or better ceramic capacitor
is recommended. Ceramic capacitor materials, such as X7R and
X5R types are a good choice for this application.
Battery Over-Voltage Protection
An over-voltage event is defined as a condition where the
voltage on the BAT pin exceeds the maximum battery charge
voltage and is set by the overvoltage protection threshold (VOVP).
If an over-voltage condition occurs, the AAT3693 charge control
shuts down the device until the voltage on the BAT pin drops
below VOVP. The AAT3693 resumes normal charging operation
after the overvoltage condition is removed. During an
over-voltage event, the STAT1 LED reports a system fault.
Over-Temperature Shutdown
The AAT3693 has a thermal protection control circuit that shuts
down charging functions if the internal die temperature exceeds
the preset thermal limit threshold. Once the internal die
temperature falls below the thermal limit, normal operation
resumes the previous charging state.
Battery Temperature Fault Monitoring
In the event of a battery over-temperature condition, the charge
control turns off the internal pass device. The STAT LEDs also
display a system fault. After the system recovers from a
temperature fault, the device resumes charging operation.
The AAT3693 checks battery temperature before starting the
charge cycle, as well as during all phases of charging. This is
accomplished by monitoring the voltage at the TS pin. This
system is intended for use with negative temperature coefficient
thermistors (NTC) that are typically integrated into the battery
package. Most of the commonly used NTC thermistors in
battery packs are approximately 10 k at room temperature
(25 °C).
For options AC, AD, AG, AH, AK, AL, BO, and BP, the TS pin has
been specifically designed to source 75 A of current to the
thermistor. The voltage on the TS pin resulting from the
resistive load should stay within a window of 331 mV to 2.39 V.
If the battery becomes too hot during charging due to an
internal fault or excessive constant charge current, the
thermistor heats up and reduces in value, pulling the TS pin
voltage lower than the TS1 threshold, and the AAT3693 stops
charging until the condition is removed, then charging is
resumed. If the use of the TS pin function is not required by the
system, it should be terminated to ground using a 10 k
resistor.
For options AA, AB, AE, AF, AI, AJ, BM, and BN, the internal
battery temperature sensing system is comprised of two
comparators which establish a voltage window for safe
operation. The thresholds for the TS operating window are
bounded by the TS1 and TS2 specifications. Referring to Table
4, the TS1 threshold = 0.30 VIN and the TS2 threshold = 0.60
VIN. If the use of the TS pin function is not required by the
system, the TS pin should be connected to input supply VIN.
Figure 28 shows the battery temperature sensing operation.
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 15
0.6 × V
IN
0.3 × V
IN
V
IN
R
HI
R
LO
Battery Cold Fault
Battery Hot Fault
IN
TS
TS COLD (TS2)
TS HOT (TS1)
Battery Temperature Sense Circuit
AAT3693-AA, AB, AE, AF, AI, AJ, BM, BN
Battery
Pack
−
+
−
+
T
tc416
AAT3693
Figure 28. Battery Temperature Sensing Operation
11
11
COLD
IN
COLD
HOT
IN
HOT
HOTCOLD
HOTCOLDIN
LO
VV
R
V
V
R
VV
RRV
R
COLDLO
COLD
IN
HI
RR
VV
R11
1
Where,
VHOT = 0.3 VIN
VCOLD= 0.6 VIN
VIN = input voltage
RHOT = NTC resistance at high temperature
RCOLD = NTC resistance at low temperature
Digital Thermal Loop Control
Due to the integrated nature of the linear charging control pass
device for the adapter mode, a special thermal loop control
system has been employed to maximize charging current under
all operation conditions. The thermal management system
measures the internal circuit die temperature and reduces the
fast charge current when the device exceeds a preset internal
temperature control threshold. Once the thermal loop control
becomes active, the fast charge current is initially reduced by a
factor of 0.44.
The initial thermal loop current can be estimated by the
following equation:
440.II CCTLOOP
The thermal loop control re-evaluates the circuit die
temperature every 3 seconds and adjusts the fast charge
current backup in small steps to the full fast charge current
level or until an equilibrium current is discovered and
maximized for the given ambient temperature condition. The
thermal loop controls the system charge level; therefore, the
AAT3693 always provides the highest level of constant current
in the fast charge mode possible for any given ambient
temperature condition
Thermal Considerations
The AAT3693 is offered in the 10-pin, 2.2 mm 2.2 mm TDFN
package, which can provide up to 2 W of power dissipation
when properly bonded to a printed circuit board and has a
maximum thermal resistance of 50 °C/W. Many considerations
should be taken into account when designing the printed circuit
board layout, as well as the placement of the charger IC
package in proximity to other heat generating devices in a given
application design. The ambient temperature around the
charger IC also has an effect on the thermal limits of a battery
charging application. The maximum limits that can be expected
for a given ambient condition can be estimated by the following
discussion.
First, the maximum power dissipation for a given situation
should be calculated:
JA
AJ
D(MAX) TT
p
Where:
PD(MAX) = maximum power dissipation (W)
JA = package thermal resistance (°C/W)
TJ = thermal loop entering threshold (°C) (115°C)
TA = ambient temperature (°C)
Figure 29 shows the relationship between maximum power
dissipation and ambient temperature for the AAT3693.
T
A
(°
°
C)
P
D
(
MAX
)
(W)
0
0.5
1
1.5
2
2.5
0 25 50 75 100
tc417
Figure 29. Maximum Power Dissipation
before Entering Thermal Loop
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
16 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
Next, the power dissipation can be calculated by the following
equation:
OPINCCBATIND IVIVVp
Where:
PD = total power dissipation by the device
VIN = input voltage
VBAT = battery voltage as seen at the bat pin
ICC = constant charge current programmed for the application
IOP = quiescent current consumed by the charger IC for normal
operation (0.3 mA]
By substitution, we can derive the maximum charge current
before reaching the thermal limit condition (thermal loop). The
maximum charge current is the key factor when designing
battery charger applications.
BATIN
OPIN)MAX(D
CH(MAX) VV
IVP
I
BATIN
OPIN
JA
A)MAX(J
CH(MAX) VV
IV
TT
I
In general, the worst condition is the greatest voltage drop
across the charger IC, when battery voltage is charged up to the
preconditioning voltage threshold and before entering thermal
loop regulation.
Figure 30 shows the maximum charge current at different
ambient temperatures.
0
200
400
600
800
1000
4.25 4.5 4.75 5 5.25 5.5 5.75 66.25 6.5 6.75 7
T
A
= 45 °C
T
A
= 35 °C
V
IN
(V
V
)
I
CC
(
MAX
)
(mA)
tc418
T
A
= 25 °C
T
A
= 60 °C
Figure 30. Maximum Charging Current
before the Digital Thermal Loop Becomes Active
Capacitor Selection
Input Capacitor
In general, it is good design practice to place a decoupling
capacitor closer to the IC and between the IN pin and GND.
An input capacitor in the range of 1 F to 22 F is
recommended. If the source supply is unregulated, it may be
necessary to increase the capacitance to keep the input voltage
above the under-voltage lockout threshold during device enable
and when battery charging is initiated. If the AAT3693 adapter
input is used in a system with an external power supply source,
such as a typical AC-to-DC wall adapter, then a CIN capacitor in
the range of 10 F should be used. A larger input capacitor in
this application minimizes switching or power transient effects
when the power supply is “hot plugged”.
Output Capacitor
The AAT3693 only requires a 1 F ceramic capacitor on the
BAT pin to maintain circuit stability. This value should be
increased to 10 F or more if the battery connection is made
any distance from the charger output. If the AAT3693 is to be
used in applications where the battery can be removed from the
charger, such as with desktop charging cradles, an output
capacitor greater than 10 F may be required to prevent the
device from cycling on and off when no battery is present. It is
good design practice to place the decoupling capacitor closer to
the IC and between the BAT pin and GND.
PCB Layout Considerations
For best results, it is recommended to physically place the
battery pack as close as possible to the AAT3693 BAT pin. To
minimize voltage drops on the PCB, keep the high current
carrying traces adequately wide. When designing with a
charging current system >500 mA, a multilayer ground plane
PCB design is highly recommended. Putting thermal vias on the
thermal pad design effectively transfers heat from the top metal
layer of the PCB to the inner or bottom layers. The number of
thermal vias depends on the application and power dissipation.
The AAT3693 evaluation board (Figure 31) is an example layout
for reference.
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 17
Evaluation Board Description
The AAT3693 Evaluation Board is used to test the performance
of the AAT3693. An Evaluation Board schematic diagram is
provided in Figure 31. Layer details for the Evaluation Board are
shown in Figure 32. The Evaluation Board has additional
components for easy evaluation; the actual bill of materials
required for the system is shown in Table 9. Table 10 lists the
AAT3693 options.
Package Information
Package dimensions for the 10-pin TDFN package are shown in
Figure 33. Tape & reel dimensions are shown in Figure 34.
10 μF
C1
1.47 kΩ
R1
Stat2
D2
10 kΩ
R6
(see notes)
R5
13.3 kΩ
R2
(G)
(R )
C3
0.1 μF
C2
10 μF
Stat1
D1
1.5 kΩ
R3
1.5 kΩ
R4
EN
VIN BAT
TS
VIN
1
GND
5
EN
4
ISET
7
CT
6
STAT2
3
BAT
10
STAT1
2
TERM
8
TS
9
EP
AAT3693IDHU1
R5: 10 k
Ω
for options AA, AB, AE, AF, AI, AJ, BM, BN
R5: OPEN for options AC, AD, AG, AH, AK, AL, BO, BP
Notes:
tc419
Figure 31. AAT3693 Evaluation Board Schematic
Table 9. AAT3693 Evaluation Board Bill of Materials
Component Part Number Description Manufacturer
C4 AAT3693IDH 1.6A linear Li-Ion/polymer battery charger in 2.2 2.2 mm TDFN Package Skyworks
C1, C3, C6, C7 CRCW04021501F 1.47 k, 1%, 1/4 W; 0603 Vishay
C2 CRCW04021332F 13.3 k, 1%, 1/4 W; 0603 Vishay
C5 CRCW04021002F 10 k, 5%, 1/4 W; 0603 Vishay
L1 CRCW04021001F 1.5 k, 5%, 1/4 W; 0603 Vishay
R1, R2 GRM21BR71A106KE51L CER, 10 F, 10 V, 10% X7R, 0805 Murata
R5, R6 TMK105BJ104KV CER, 0.1 F, 25 V, 10% X5RR, 0402 Taiyo Yuden
R3 PRPN401PAEN Conn. Header, 2 mm zip Sullins Electronics
R4 LTST-C190GKT Green LED, 0603 Lite-On Inc.
R7 LTST-C190CKT Red LED, 0603 Lite-On Inc.
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
18 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
Table 10. AAT3693 Options
Option
Name
Trickle
Charge
Mode
Temperature Sense
Low
Battery
Check
Status Reporting Charge Timer
Constant Output
Voltage VCO(REG)
(V)
Low
Threshold
High
Threshold STAT1 STAT2
Trickle
Charge (TC)
Timeout
Constant
Current (CC)
Charge
Timeout
Constant
Voltage (CV)
Charge
Timeout
AA Yes 30% of VIN 60% of VIN Yes Yes Type 1 3 hours total 4.2
AB No 30% of VIN 60% of VIN Yes Yes Type 1 3 hours total 4.2
AC Yes 0.33 V Fixed 2.39 V Fixed Yes Yes Type 2 3 hours total 4.2
AD No 0.33 V Fixed 2.39 V Fixed Yes Yes Type 2 3 hours total 4.2
AE Yes 30% of VIN 60% of VIN Yes Yes Type 1 25 minutes 1 hour 2 hours 4.2
AF No 30% of VIN 60% of VIN Yes Yes Type 1 25 minutes 1 hour 2 hours 4.2
AG Yes 0.33 V Fixed 2.39 V Fixed Yes Yes Type 2 25 minutes 1 hour 2 hours 4.2
AH No 0.33 V Fixed 2.39 V Fixed Yes Yes Type 2 25 minutes 1 hour 2 hours 4.2
AI Yes 30% of VIN 60% of VIN No Yes Type 1 3 hours total 4.2
AJ No 30% of VIN 60% of VIN No Yes Type 1 3 hours total 4.2
AK Yes 0.33 V Fixed 2.39 V Fixed No Yes Type 2 3 hours total 4.2
AL No 0.33 V Fixed 2.39 V Fixed No Yes Type 2 3 hours total 4.2
BM Yes 30% of VIN 60% of VIN Yes Yes Type 1 25 minutes 1 hour 2 hours 4.37
BN No 30% of VIN 60% of VIN Yes Yes Type 1 25 minutes 1 hour 2 hours 4.37
BO Yes 0.33 V Fixed 2.39 V Fixed Yes Yes Type 2 25 minutes 1 hour 2 hours 4.37
BP No 0.33 V Fixed 2.39 V Fixed Yes Yes Type 2 25 minutes 1 hour 2 hours 4.37
Top Side Middle 1 Layer
Middle 2 Layer Bottom Side
tc420
Figure 32. AAT3693 Evaluation Board Layer Details
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
201896C • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • September 2, 2014 19
2.200 ±
±
0.050
2.200 ±
±
0.050
Index Area
1.700 ±
±
0.050
0.900 ±
±
0.050
Detail "A"
0.500 ±
±
0.050
0.750 ±
±
0.050
0.203 REF
Top View Bottom View
Side View
Pin 1 Indicator
(optional)
0.400 BSC
0.180 ±
±
0.050
0.400 ±
±
0.050
Detail "A"
tc421
Figure 33. AAT3693 14-pin TDFN Package Dimensions
1.75 ± 0.10
2.40 ± 0.05
2.40 ± 0.05
1.50 ± 0.10 1.00 ± 0.05
0.254 ± 0.020
3.50 ± 0.05
2.00 ± 0.05
8.10 ± 0.20
4.00 ± 0.10
4.00 ± 0.10 Pin 1 Location
tc422
All dimensions are in millimeters.
Figure 34. AAT3693 Tape and Reel Dimensions
DATA SHEET • AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
20 September 2, 2014 • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • 201896C
Ordering Information
Model Name Part Marking (Note 1) Manufacturing Part Number (Note 2) Evaluation Board Part Number
AAT3693: 1.6 A Li-Ion/Polymer Battery Charger
5FXYY AAT3693IDH-AA-T1 AAT3693IDH-AA-EVB
7DXYY AAT3693IDH-AB-T1 AAT3693IDH-AB-EVB
AAT3693IDH-AC-T1 AAT3693IDH-AC-EVB
AAT3693IDH-AD-T1 AAT3693IDH-AD-EVB
AAT3693IDH-AE-T1 AAT3693IDH-AE-EVB
AAT3693IDH-AF-T1 AAT3693IDH-AF-EVB
AAT3693IDH-AG-T1 AAT3693IDH-AG-EVB
AAT3693IDH-AH-T1 AAT3693IDH-AH-EVB
5GXYY AAT3693IDH-AI-T1 AAT3693IDH-AI-EVB
7EXYY AAT3693IDH-AJ-T1 AAT3693IDH-AJ-EVB
AAT3693IDH-AK-T1 AAT3693IDH-AK-EVB
AAT3693IDH-AL-T1 AAT3693IDH-AL-EVB
AAT3693IDH-BM-T1 AAT3693IDH-BM-EVB
AAT3693IDH-BN-T1 AAT3693IDH-BN-EVB
AAT3693IDH-BO-T1 AAT3693IDH-BO-EVB
AAT3693IDH-BP-T1 AAT3693IDH-BP-EVB
Note 1: XYY = assembly and date code.
Note 2: Sample stock is generally held on part numbers listed in BOLD.
Copyright © 2012, 2014 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 and the Skyworks symbol 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.
