Battery Management Solutions for Wearable and ... - TI.com

1 Innovative, Space-Saving, Chargers, Gauges and HarvestersOverviewMulti-function Wearable devices help people track and manage fitness, health, and medical functions. As these devices become smaller and more comfortable for the user, the demand for additional features and longer run time presents new challenges for designers. Whether powered from conventional or renewable sources, tiny and efficient low-power chargers from Texas Instruments enable peak performance for a wide range of Wearable electronic Management Solutions for Wearable and Fitness Portfolio of Wireless Charging ICs, Nano-Power Harvesting ICs, Traditional Chargers, and Gauges Smallest footprint, space-saving Solutions for tight form factors Very high-efficiencies allow lower heat dissipation and longer Battery run times Most accurate gauging for extended run time Reference design and evaluation boards available for rapid prototypingApplication Examples Sensor integration Smart watches, bio-metric monitors ID tags Augmented reality, fashion designWearable System DiagramSLPT034 CBattery Management Solutions for Wearable and Fitness DevicesFor more information.

2 Visit 2014 Texas Instruments IncorporatedPrinted in by Almaden Press, San Jose, CAThe platform bar is a trademark of Texas Instruments. All other trademarks are the property of their respective Chargers, Gauges, and Evaluation ModulesProductDescriptionEVMbq25570 Ultra-low power boost charger with integrated DC/DC conversionbq25570 EVM-206bq25505/04 Ultra-low power boost converter with Battery Management and autonomous power path multi-plexingbq25505 EVM-218, bq25504 EVMTPS62736/37 Ultra-low Iq nano-buck regulators with 50/100 mA load capabilityTPS62736 EVM-205, TPS62737 EVM-560bq25100/ASmallest 250 mA single-cell Li-Ion charger with 75 nA low IQ, 1 mA termination for ultra-low-power designsbq25100 EVM-654bq24040/451A, single-cell Li-Ion and Li-Pol linear chargers with Auto Startbq24040 EVM, bq24045 EVMbq24090/951A, single-cell Li-Ion linear chargers with temperature monitoringbq24090 EVM.

3 Bq24095 EVM-005bq24232 USB-friendly Li-Ion charger with Power Path managementbq24232 EVMbq27421 System-side Impedance Track fuel gauge with integrated sense resistorbq27421 EVM-G1A, bq27421 EVM-G1 Bbq27621 System-side fuel gauge with Dynamic Voltage Correlationbq27621 EVM-G1bq51003 WPC integrated wireless power supply receiver optimized for applicationsbq51003 EVM-764bq51013 BWPC integrated wireless power receiver with 5V regulated outputbq51013 BEVM-764bq51050B/51 BWPC integrated wireless power receiver and / Li-Ion charger receiversbq51050 BEVM-764bq500212 AWPC 5V wireless power transmitter manager with lowest total device countbq500212 EVM-550bq25504/05 Ultra-low power boost converters withbattery Management for charging and protectionKey Features High-efficiency DC/DC boost converters/chargers Programmable dynamic Maximum Power Point Tracking (MPPT)

4 With cold start feature Flexible energy storage optionsbq27421/621 Low-power, high accuracy single-cell Li-Ion fuel gaugesKey Features 5% accuracy, longer run-time, less charging needed Low power consumption, suitable for small batteries Small form factor, no external sense resistor requiredNano PowerBoost ChargerFuel Gaugebq25100 seriesSingle input, single-cell Li-Ion and Li-Pol linear chargersKey Features Ultra-small WCSP package, mm x mm 1 mA minimum programmable termination current 75 nA maximum Battery leakage current 30V input rating with over-voltage protectionbq51003 Advanced, integrated receiver for wireless power transfer Key Features High efficiency DC/DC boost converter/charger with built-in buck regulation MPPT with cold start feature Flexible energy storage options Battery charging and protectionLinear Battery ChargerWireless Power Receiverbq24232 Integrated Li-Ion linear charger and power-path Management ICKey Features Fully-compliant USB charger, selectable 100 mA or 500 mA Max VIN 28V input rating with over-voltage protection Integrated Dynamic Power Path Management (DPPM) powers system and charges Battery Supports up to 500 mA charge current with current monitoring output (ISET)

5 Bq24040/45 Single-cell Li-Ion linear Battery chargersKey Features 1% charge voltage accuracy, 10% charge current accuracy USB port or AC adapter operation 30V input rating with or input overvoltage protection supports low-cost, unregulated adapters Automatic Termination and Timer Disable Mode (TTDM) for absent Battery pack with thermistorLinear Battery ChargerLinear Battery ChargerIMPORTANTNOTICET exasInstrumentsIncorporatedand its subsidiaries(TI) reservethe rightto makecorrections,enhancements,improvement sand otherchangesto its semiconductorproductsand servicesper JESD46,latestissue,and to discontinueany productor serviceper JESD48, latestrelevantinformationbeforeplacingor dersand shouldverifythat suchinformationis semiconductorproducts(alsoreferredto hereinas components ) are sold subjectto TI s termsand conditionsof salesuppliedat the time of warrantsperformanceof its componentsto the specificationsapplicableat the time of sale,in accordancewith the warrantyin TI s termsand conditionsof sale of otherqualitycontroltechniquesare usedto the extentTI deemsnecessaryto supportthis applicablelaw, testingof all parametersof eachcomponentis not assumesno liabilityfor applicationsassistanceor the designof Buyers responsiblefor theirproductsandapplicationsusingTI minimizethe risksassociatedwith Buyers productsand applications,Buyersshouldprovideadequate designand doesnot warrantor representthat any license,eitherexpressor implied,is grantedunderany patentright,copyright,maskworkright,orot herintellectualpropertyrightrelatingto any combination,machine.

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