DATA SHEET AAT3693: 1.6 A Li-Ion/Polymer Battery Charger Applications Description Bluetooth headsets The AAT3693 BatteryManager is a highly integrated single-cell lithium-ion/polymer (Li-Ion) battery charger that operates from a Cell phones USB port or an AC adapter input with up to 7.5 V input voltage. Digital still cameras The AAT3693 precisely regulates battery charge voltage and MP3 players current for 4.2 V Li-Ion battery cells. The battery charging current Personal data assistants (PDAs) can be set by an external resistor up to 1.6 A. Digital Thermal Loop Control maintains the maximum possible battery charging Other Li-Ion battery powered devices current for the given set of input to output power dissipation and ambient temperature conditions. Features Battery charge state is continuously monitored for fault USB or AC adapter system power charger conditions. In the event of an over-current, over-voltage, short- circuit, or over-temperature condition, the device shuts down Programmable from 100 mA to 1.6 A max. automatically to protect the charging device, the control system, Input voltage range: 4.0 V 7.5 V and the battery under-charge. A status monitor output pin is High level of integration with internal: provided to indicate the battery charge status by directly driving Charging device an external LED. An open-drain power source detection output is Reverse blocking diode provided to report the power supply status. With theNo-Battery Current sensing Detectio circuit integrated, the status LEDs indicate that the battery is not present or not properly installed. Digitized thermal regulation The AAT3693 is available in the Pb-free, thermally enhanced, Charge current programming (ISET) space-saving 10-pin, 2.2 mm 2.2 mm TDFN packages and is Charge termination current programming (TERM) specified for operation over the 40 C to +85 C temperature Charge timer (CT) range. Battery temperature sensing (TS) A typical application circuit is shown in Figure 1. The pin No-battery detection configurations are shown in Figure 2. Signal pin assignments and TS pin open detection functional pin descriptions are provided in Table 1. Automatic recharge sequencing Full battery charge auto turn off/sleep mode/charge termination Shutdown current < 6 A TM Skyworks Green products are compliant with Automatic trickle charge for battery preconditioning all applicable legislation and are halogen-free. For additional information, refer to Skyworks Over-voltage and over-current protection TM Denition of Green , document number Emergency thermal protection SQ040074. 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 C per JEDEC J-STD-020) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201896E Skyworks Proprietary and Confidential Information Products and Product Information are Subject to Change Without Notice December 15, 2016 1 DATA SHEET AAT3693: 1.6 A LI-ION/POLYMER BATTERY CHARGER AAT3693 VIN BAT + BAT VIN CBAT STAT1 STAT2 ON/OFF Temp EN TS Battery CT TERM Pack ISET GND CcT RTERM RSET tc389 Figure 1. AAT3693 Typical Application Circuit 1 VIN 10 BAT 2 8 TS STAT1 3 8 STAT2 TERM EP EN 4 7 ISET 5 6 GND CT tc390 Figure 2. AAT3693 Pinout (Top View) Table 1. AAT3693 Signal Descriptions Pin 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. 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. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 December 15, 2016 Skyworks Proprietary and Confidential Information Products and Product Information are Subject to Change Without Notice 201896E