Linear Li-Ion Battery Charger with Power Path and USB Compatibility in LFCSP Data Sheet ADP5062 FEATURES GENERAL DESCRIPTION 4 mm 4 mm LFCSP package The ADP5062 charger is fully compliant with USB 3.0 and the 2 Fully programmable via I C USB Battery Charging Specification 1.2 and enables charging Flexible digital control inputs via the mini USB VBUS pin from a wall charger, car charger, or Up to 2.1 A current from an ac charger in LDO mode USB host port. Operating input voltage from 4.0 V to 6.7 V The ADP5062 operates from a 4 V to 6.7 V input voltage range Tolerant input voltage from 0.5 V to +20 V (USB VBUS) but is tolerant of voltages up to 20 V thereby alleviating concerns Fully compatible with USB 3.0 and USB Battery Charging about USB bus spikes during disconnect or connect scenarios. Specification 1.2 The ADP5062 features an internal FET between the linear Built-in current sensing and limiting charger output and the battery. This permits battery isolation As low as 54 m battery isolation FET between battery and and, hence, system powering under a dead battery or no battery charger output scenario, which allows for immediate system function on connec- Thermal regulation prevents overheating tion to a USB power supply. Compliant with JEITA 1 and JEITA 2 Li-Ion battery charging temperature specifications Based on the type of USB source, which is detected by an external SYS EN flag permits the system to be disabled until battery is at USB detection chip, the ADP5062 can be set to apply the correct the minimum required level for guaranteed system start-up current limit for optimal charging and USB compliance. The ADP5062 has three factory-programmable digital input/out- APPLICATIONS put pins that provide maximum flexibility for different systems. Digital still cameras These digital input/output pins permit combinations of features Digital video cameras such as, input current limits, charging enable and disable, charging Single cell Li-Ion portable equipment current limits, and a dedicated interrupt output pin. PDAs, audio, and GPS devices Portable medical devices Mobile phones TYPICAL APPLICATION CIRCUIT ADP5062 ISO Sx SYSTEM VBUS AC OR VIN USB CBP C3 22F C4 C1 10F 10nF SCL SDA ISO Bx CHARGER C2 BAT SNS CONTROL DIG IO1 22F BLOCK Li-ion + DIG IO2 DIG IO3 THR SYS EN ILED VLED AGND Figure 1. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20122013 Analog Devices, Inc. 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PROGRAMMABLE 10806-001ADP5062 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Battery Isolation FET ................................................................. 21 Applications ....................................................................................... 1 Battery Detection ....................................................................... 21 General Description ......................................................................... 1 Battery Pack Temperature Sensing .......................................... 22 2 Typical Application Circuit ............................................................. 1 I C Interface ................................................................................ 26 2 Revision History ............................................................................... 2 I C Register Map ......................................................................... 27 Specifications ..................................................................................... 3 Register Bit Descriptions ........................................................... 28 Recommended Input and Output Capacitances ...................... 6 Applications Information .............................................................. 36 2 I C-Compatible Interface Timing Specifications ..................... 6 External Components ................................................................ 36 Absolute Maximum Ratings ....................................................... 8 PCB Layout Guidelines.............................................................. 38 Thermal Resistance ...................................................................... 8 Power Dissipation and Thermal Considerations ....................... 39 ESD Caution .................................................................................. 8 Charger Power Dissipation ....................................................... 39 Pin Configuration and Function Descriptions ............................. 9 Junction Temperature ................................................................ 39 Typical Performance Characteristics ........................................... 10 Factory-Programmable Options .................................................. 40 Temperature Characteristics ..................................................... 12 Charger Options ......................................................................... 40 2 Typical Waveforms ..................................................................... 14 I C Register Defaults .................................................................. 41 Theory of Operation ...................................................................... 15 Digital Input and Output Options ........................................... 41 Summary of Operation Modes ................................................. 15 Packaging and Ordering Information ......................................... 43 Introduction ................................................................................ 16 Outline Dimensions ................................................................... 43 Charger Modes............................................................................ 18 Ordering Guide .......................................................................... 43 Thermal Management ............................................................... 21 REVISION HISTORY 10/13Rev. A to Rev. B Changes to Table 19 ........................................................................ 28 Changes to Table 26 ........................................................................ 32 Changes to Charger Options Section and Table 41 ................... 40 Changes to Ordering Guide .......................................................... 43 4/13Rev. 0 to Rev. A Changes to Figure 3 .......................................................................... 9 9/12Revision 0: Initial Version Rev. B Page 2 of 44