Fast Charge Battery Manager with Power Path and USB Compatibility Data Sheet ADP5065 FEATURES FUNCTIONAL BLOCK DIAGRAM 3 MHz switch mode charger ADP5065 AC VBUS SYSTEM VINx SWx 1.25 A charge current from dedicated charger OR USB INDUCTOR Up to 680 mA charging current from 500 mA USB host Operating input voltage from 4.0 V up to 5.5 V 3MHz PGNDx CFILT BUCK Tolerant input voltage 0.5 V to +20 V (USB VBUS) Dead battery isolation FET between battery and ISO Sx charger output IIN EXT TRK EXT Battery thermistor input with automatic charger shutdown ISO Bx CHARGER SCL CONTROL for when battery temperature exceeds limits BAT SNS SDA BLOCK + Compliant with the JEITA Li-Ion battery charging Li-Ion THR SYS ON OK temperature specification V WEAK SET AGND PGNDx SYS EN OK flag to hold off system turn-on until battery is at minimum required level for guaranteed system startup due to minimum battery voltage and/or minimum battery Figure 1. charge level requirements EOC programming with C/20, C/10 and specific current level selection APPLICATIONS Digital still cameras Digital video cameras Single cell Li-Ion portable equipment PDA, audio, GPS devices Mobile phones GENERAL DESCRIPTION The ADP5065 charger is fully compliant with the USB 2.0, Based on the type of USB source, which is detected by an external USB 3.0, and USB Battery Charging Specification 1.1 and USB detection chip, the ADP5065 can be set to apply the correct enables charging via the mini USB VBUS pin from a wall current limit for optimal charging and USB compliance. charger, car charger, or USB host port. The ADP5065 comes in a very small and low profile 20-lead The ADP5065 operates from a 4 V to 5.5 V input voltage range WLCSP (0.5 mm pitch spacing) package. but is tolerant of voltages of up to 20 V. This alleviates the The overall solution requires only five small, low profile external concerns about the USB bus spiking during disconnect or components consisting of four ceramic capacitors (one of which connect scenarios. is the battery filter capacitor), one multilayer inductor. In addition The ADP5065 also features an internal FET between the dc-to- to these components, there is one optional dead battery situation dc charger output and the battery. This permits battery isolation default setting resistor. This configuration enables a very small and, hence, system powering under a dead battery or no battery PCB area to provide an integrated and performance enhancing scenario, which allows for immediate system function on solution to USB battery charging and power rail provision. connection to a USB power supply. Rev. D 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 20112013 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 09370-001ADP5065 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Battery Isolation FET ................................................................. 19 Applications ....................................................................................... 1 Battery Detection ....................................................................... 20 Functional Block Diagram .............................................................. 1 Battery Pack Temperature Sensing .......................................... 21 General Description ......................................................................... 1 External Resistor for V WEAK SET ...................................... 22 2 Revision History ............................................................................... 2 I C Interface ................................................................................ 23 Specifications ..................................................................................... 3 Charger Operational Flowchart ............................................... 24 2 Recommended Input and Output Capacitance ........................ 5 I C Register Map ......................................................................... 25 2 I C-Compatible Interface Timing Specifications ..................... 6 Register Bit Descriptions ........................................................... 26 Absolute Maximum Ratings ....................................................... 7 Applications Information .............................................................. 32 Thermal Resistance ...................................................................... 7 External Components ................................................................ 32 ESD Caution .................................................................................. 7 PCB Layout Guidelines .................................................................. 34 Pin Configuration and Function Descriptions ............................. 8 Power Dissipation and Thermal Considerations ....................... 35 Typical Performance Characteristics ............................................. 9 Charger Power Dissipation ....................................................... 35 Temperature Characteristics ..................................................... 11 Junction Temperature ................................................................ 36 Typical Waveforms ..................................................................... 13 Factory-Programmable Options .................................................. 37 Theory of Operation ...................................................................... 15 Packaging and Ordering Information ......................................... 38 Introduction ................................................................................ 15 Outline Dimensions ................................................................... 38 Charger Modes............................................................................ 17 Ordering Guide .......................................................................... 38 Thermal Management ............................................................... 19 REVISION HISTORY 2/13Rev. C to Rev. D Changed Maximum Duty Cycle from 93% to 96% ............................. 3 Changed Bit 3:0 Default Value from 0100 to 0101, Table 16 .. 26 Changed Bit 5 and Bit 2 Default Values from 1 to 0, Table 21 ....... 29 Deleted Disconnecting Supply Voltage at VINx Section ............... 34 9/12Rev. B to Rev. C Changed Bit 3:0 Default Value from 0011 to 0100, Table 16 ......... 27 Added Disconnecting Supply Voltage at VINx Section ............ 34 4/12Rev. A to Rev. B Changes to Features Section and General Description Section ........ 1 Changes to Table 1 ............................................................................ 3 Changes to VIN1, VIN2 to PGND1, PGND2 Parameter, Table 4 ... 7 Changes to Introduction Section .................................................. 15 11/11Rev. 0 to Rev. A Changes to Figure 10 ...................................................................... 10 Changes to Figure 17 and Figure 18 ............................................. 11 Changes to Figure 41 ...................................................................... 36 10/11Revision 0: Initial Version Rev. D Page 2 of 40