AAT3680IKS-4.2-T1 Advanced Analogic Technologies, Inc., AAT3680IKS-4.2-T1 Datasheet

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AAT3680IKS-4.2-T1

Manufacturer Part Number
AAT3680IKS-4.2-T1
Description
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer
Advanced Analogic Technologies, Inc.
Datasheet

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AAT3680IKS-4.2-T1
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General Description
The AAT3680 BatteryManager is a member of
AnalogicTech's Total Power Management IC™
(TPMIC™) product family. This device is a lithium-
ion/polymer battery charge and management IC,
specifically designed for compact portable applica-
tions. The AAT3680 precisely regulates battery
charge voltage and charge current, and is capable
of two trickle charge current levels controlled by
one external pin. Battery charge temperature and
charge state are carefully monitored for fault con-
ditions. In the event of an over-current, short-cir-
cuit, or over-temperature failure, the device will
automatically shut down, protecting the charging
device and the battery under charge. A battery
charge state monitor output pin is provided to indi-
cate the battery charge status through a display
LED. The battery charge status output is a serial
interface which may also be read by a system
microcontroller.
The AAT3680 is available in a Pb-free, 8-pin MSOP
or 12-pin TSOPJW package, specified over the
-20°C to +70°C temperature range.
3680.2006.03.1.6
Typical Application
VP
R
0.2Ω
SENSE
C3
10µF
FZT968
Q1
1.9k
R1
DRV
CSI
VP
VSS
AAT3680
B34DLA
SMA
STAT
BAT
T2X
TS
R2
1k
Features
Applications
Linear Battery Charge Controller
LED1
Input Voltage Range: 4.5V to 7V
1% Accurate Preset Voltages: 4.1V, 4.2V
Low Operation Current, Typically 0.5mA
Programmable Charge Current
Automatic Recharge Sequencing
Battery Temperature Monitoring
Deep Discharge Cell Conditioning
Fast Trickle Charge Option with Thermal
Over-Ride
Full Battery Charge Auto Turn-Off / Sleep Mode
Over-Voltage, Over-Current, and Over-
Temperature Protection
Power On Reset
LED Charge Status Output or System
Microcontroller Serial Interface
Temperature Range: -20°C to +70°C
8-Pin MSOP or 12-Pin TSOPJW Package
Cellular Phones
Desktop Chargers
Personal Digital Assistants (PDAs)
USB Chargers
VP
RT1
RT2
C2
1µF
BATT+
BATT-
TEMP
BatteryManager
Lithium-Ion/Polymer
Battery
Pack
AAT3680
1

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AAT3680IKS-4.2-T1 Summary of contents

Page 1

General Description The AAT3680 BatteryManager is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. This device is a lithium- ion/polymer battery charge and management IC, specifically designed for compact portable applica- tions. The AAT3680 precisely regulates battery ...

Page 2

Pin Description Pin # Symbol TSOPJW-12 MSOP BAT 2 7 CSI 3 N/A N T2X 5 5 DRV 6 4 VSS 7 3 STAT Pin Configuration TSOPJW-12 ...

Page 3

Absolute Maximum Ratings T =25°C, unless otherwise noted. A Symbol Description V V Relative CSI to GND CSI V T2X to GND T2X V BAT to GND BAT T Operating Junction Temperature Range J ESD ...

Page 4

Electrical Characteristics V = 4.5V to 5.5V -20°C to 70°C, unless otherwise noted; typical values are Symbol Description I Operating Current P I Sleep Mode Current SLEEP I STAT High-Level Output STAT(HI) Leakage Current ...

Page 5

Functional Block Diagram T2X CSI BAT TS VP Functional Description The AAT3680 is a linear charge controller designed for single-cell lithium-ion/polymer batteries full-featured battery management system IC with multiple levels of integrated power savings, system communication, and ...

Page 6

Constant Voltage Charging When the battery voltage reaches V stant current mode, the AAT3680 transitions to con- stant voltage mode. The regulation voltage is fac- tory programmed: 4.1V and 4.2V are available to support different anode materials in lithium-ion/poly- mer ...

Page 7

Sleep Mode When the input supply is disconnected, the charger automatically enters power-saving sleep mode. Only consuming an ultra-low 2µA in sleep mode, the AAT3680 minimizes battery drain when it is not charging.This feature is particularly useful in applica- tions ...

Page 8

Charge Status Sleep / Charge Complete Temp., OC, OV Fault Battery Conditioning Constant Current Mode Constant Voltage Mode High-Speed Data Reporting A high-speed data reporting application schematic is shown in Figure 3. An optional system micro- controller interface can be ...

Page 9

Charge Status Sleep / Charge Complete Temp., OC, OV Fault Battery Conditioning Constant Current Mode Constant Voltage Mode Figure 4: Microcontroller Interface Logic Output. Protection Circuitry The AAT3680 is a highly integrated battery man- agement system IC including several protection ...

Page 10

Applications Information Choosing an External Pass Device (PNP or PMOS) The AAT3680 is designed to work with either a PNP transistor or P-channel power MOSFET. Selecting one or the other requires looking at the design tradeoffs, including performance versus cost ...

Page 11

R SENSE 0.2Ω 100k C1 4.7µF Figure 6: Typical Applications Schematic Using a P-Channel Power MOSFET with the AAT3680-4.2. 1. The first step is to determine the maximum power dissipation ( the pass transistor. Worst case ...

Page 12

Calculate the required threshold voltage to deliver I : CHARGE(REG OL@DRV = (0.1V + 0.1V 4.3V where V is the available gate-to-source voltage GS provided ...

Page 13

R and R for use with PTC Thermistor ⋅ R ⋅ ⋅ ⋅ R ⋅ ⋅ R ...

Page 14

P-channel MOSFET. If there is no other pro- tection in the system, a shorted input could dis- charge the battery through the body diode of the pass MOSFET reverse-blocking diode is added to the system, a ...

Page 15

Evaluation Board Schematic Figure 8: AAT3680 Demo Board Silk Screen / Assembly Drawing. 3680.2006.03.1.6 Linear Battery Charge Controller Figure 9: AAT3680 Demo Board Component Figure 10: AAT3680 Demo Board Solder Side Layout. AAT3680 Lithium-Ion/Polymer Side Layout. 15 ...

Page 16

... Various MSOP-8 AnalogicTech 1206 Various SMA Diodes Inc. TO-252 Various AAT3680 Lithium-Ion/Polymer Part Number LRC1206-01-R200F PRPN031PAEN Select with Starting Jumper GRM42-6X5R75K10 GRM42-6X5R106K16 AAT3680IKS-4.2-T1 B340LA F2T968 Part Number LRC1206-01-R200F PRPN031PAEN Select with Starting Jumper GRM42-6X5R75K10 GRM42-6X5R106K16 AAT3680IKS-4.2 B340LA RFD10P03L 3680.2006.03.1.6 ...

Page 17

... Sample stock is generally held on all part numbers listed in BOLD. 3680.2006.03.1.6 Linear Battery Charge Controller Package Marking 1 4.2V ESXYY 4.2V ESXYY MSOP-8 1.95 BSC 0.254 BSC 3.00 ± 0.10 10° ± 5° 0.30 ± 0.08 0.65 BSC AAT3680 Lithium-Ion/Polymer Part Number (Tape and Reel) AAT3680IKS-4.2-T1 AAT3680ITP-4.2-T1 4° ± 4° 0.60 ± 0.20 0.155 ± 0.075 2 17 ...

Page 18

... All dimensions in millimeters. © 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. ...

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