AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices Preliminary Application Note AS3610-AN01-Demoboard 1V0 USB complient Step down Charger for Portable Devices 1 General Description The AS3610 is highly integrated standalone or optional I2C controlled step down charger. All supervision and regulation functions are realized internal and independent from the processor. In addition the Charger can generate a 5.05V output supply at VBUS for USB OTG. 2 Key Features DCDC USB Charger 1.2A, 3MHz DCDC Charger OTG Boost with low IQ (700uA) up to 500mA Seamless 100% Mode Reverse Polarity protection on VBUS NTC support Low side LED driver No external shunt resistor required No Battery operation without voltage drop. Package MLPD14 3x3mm 3 Applications - 1 Cell Li+ charger for mobile phones and portable devices www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 1 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices Table of Contents 1 FURTHER APPLICATIONS .................................................................................................................. 3 2 REVISION STATUS ............................................................................................................................. 3 3 GENERAL DESCRIPTION.................................................................................................................... 3 4 GETTING STARTED ............................................................................................................................ 3 5 GUI –SW: FIRST STEPS...................................................................................................................... 4 6.1 GUI – SW: OVERVIEW ........................................................................................................................... 4 6.2 SW VS. PCB: GET THE BOARD FUNCTIONAL ....................................................................................... 5 7 AS3610 DEMOBOARD V1.0 JUMPER AND DEVICE LOCATIONS ......................................................... 7 8 APPLICATION SCHEMATIC AS3610 DEMOBOARD 1V0 ...................................................................... 8 9 AS3610 DEMOBOARD V1.0: LAYOUT (TOP VIEW) ............................................................................ 11 10 AS3610 DEMOBOARD V1.0: LAYOUT (BOTTOM VIEW) .................................................................... 11 COPYRIGHT .............................................................................................................................................. 12 AS3610 www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 2 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices 1 Further Applications Visit our home-page: http: //www.austriamicrosystems.com 2 Revision status AS3610 - AN01 - Demoboard AS3610 Demoboard – Layout AS3610 Demoboard – Schematic Rev.: 1v0 Rev.: 1v0 Rev.: 1v0 3 General description Remark: all subsequent component numbering refers to the application schematics, shown in pt. Application Schematic. 4 Getting Started Install the GUI SW which can be found on the USB-BOX or CD-ROM which is included. After that, follow the following sequence to connect the AS3610 Board: (also shown in the picture below) 1. Connect the an USB cable or alternative supply the board from a power supply (5V) 2. Connect the austriamicrosystems AG USB BOX at J1 3. connect a battery to VBAT and GND A red LED (D2) on the Board immediately indicates a proper connection of the power supply. 2 1 3 ( Picture shows AS3610 Demoboard 1V0 ) www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 3 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices 5 GUI –SW: First steps If the USB Box and the Device is recognized the bars are shown in green 6.1 GUI – SW: overview Select the NTC of the battery: 10 or 100k Overview which current can be selected on the Demoboard www.austriamicrosystems.com (mmt) Shows the status of the Charger Function of Status pin: 0 always off 1 ch_det=ON 2 ch_det=ON, stop_charging or boost_error=5Hz blinking 3 Charging=ON, stop_charging or boost_error=5Hz blinking 4 Charging=ON, EOC=1Hz blinking, stop_charging or boost_error=5Hz blinking 5 ch_det =ON, EOC=1Hz blinking, stop_charging or boost_error=5Hz blinking Revision 1.0 / 2010/07/27 4 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices 6.2 SW vs. PCB: Get the board functional Connect Battery (~3.7V Lithium Ionen) to Vbat -> no Power Supply Connect Power Supply (5V) to Vbus or USB cable measure current consumption LED D2 is turning on, current limit about 100/500mA Set Jumper on NTC (J8) LED D2 should be blinking, current consumption is 0mA Disconnect NTC- Jumper and set Jumper USB 500 (J5) to “1” current consumption is a little bit under 500 mA, set the Jumper back of USB 500 to “0” to get 100mA. XEN set per Jumper (J3) to “1” current consumtion = 0mA, set XEN back to “0” Activate in the SW - Then in the Register of Charger Status now should be set: ChDet and it is depending on the battery voltage CCM or Trickle or Const. Volt. Mode or EOC is shown. Disconnect battery : CHDet & EOC are set www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 5 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices Remove the I-Term Jumper: ChDet & Const. Voltage mode are set Re-connect Battery and Jumper Disable in the SW the “ USB charger enable” Disconnect VBUS Activate the “ Boost Enable” LED D2 is turned on! The Voltage on Vbus is ~5V. www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 6 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices 7 AS3610 Demoboard V1.0 jumper and device locations Listed below are the various connectors and jumpers. Jumper J1 J2 J3 J4,J6,J7 J9.J10,J11 J5 comment Function I2C interface I2C-PWR XEN ISET ITERM USB 500 Uses the power supply from the I2C box Enable pin for step down charger Sets the charging current Selects Trickle & EOC current Set current limit in charger mode. 100mA/500mA USB current limit J8 NTC J13 Stat. LED J14,J15,J1 6,J17 J18,J19 Stand alone VBUS GND VBAT Device NTC input Status output pin. Connector for Adapterboard Fixed solution for the Stand alone mode 5V supply Battery connector comment Value U1 AS3610 USB complient Step down Charger for Portable Devices U2 USB connector 5V supply for Vbus Connector and Jumper locations of AS3610A Demoboard 1V0 www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 7 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices 8 Application Schematic AS3610 Demoboard 1V0 www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 8 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 9 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 10 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices 9 AS3610 Demoboard V1.0: Layout (top view) Layout (top view) 10 AS3610 Demoboard V1.0: Layout (bottom view) Layout (bottom view) www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 11 - 12 AS3610 – AN01 - Demoboard Preliminary Application Note – USB complient Step down Charger for Portable Devices Copyright Copyright © 1997-2010, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, AustriaEurope. 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Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Contact Information Headquarters austriamicrosystems AG A-8141 Schloss Premstätten, Austria T. +43 (0) 3136 500 0 F. +43 (0) 3136 5692 For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com/contact www.austriamicrosystems.com (mmt) Revision 1.0 / 2010/07/27 12 - 12