TPS65020EVM-110 User's Guide
Contents
1. TIAL DAMAGES TI currently deals with a variety of customers for products and therefore our arrangement with the user is not exclusive TI assumes no liability for applications assistance customer product design software performance or infringement of patents or services described herein Please read the EVM User s Guide and specifically the EVM Warnings and Restrictions notice in the EVM User s Guide prior to handling the product This notice contains important safety information about temperatures and voltages For further safety concerns please contact the application engineer Persons handling the product must have electronics training and observe good laboratory practice standards No license is granted under any patent right or other intellectual property right of Tl covering or relating to any machine process or combination in which such TI products or services might be or are used www BDTIC com TI 5 INSTRUMENTS www ti com Related Documentation 12 EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 0 V to 4 V Exceeding the specified input range may cause unexpected operation and or irreversible damage to the EVM If there are questions concerning the input range please contact a TI field representative prior to connecting the input power Applying loads outside of the specified output range may result in unintended operation and or poss2. Chip 100k Ohms 1 16 W 1 0603 Std Std 2 2 SW1 SW2 Switch SPST PB Momentary Sealed Washable 0 245 X 0 251 KT11P2JM C amp K 1 0 Ut IC Power Management IC for Li lon Powered 0 242 x 0 242 TPS65020RHA TI Systems 1 IC Power Management IC for Li lon Powered 0 242 x 0 242 TPS65021RHA TI Systems 1 1 PCB 3 65 In x 2 95 In x 0 062 In HPA110 Any 7 9 Shunt 100 mil Black 0 100 929950 00 3M 5 Related Documentation 1 TPS65020 Power Management IC for Li lon Powered Systems data sheet SLVS607 10 TPS65020EVM 110 User s Guide SLVU138 August 2005 www BDTIC com TI FCC Warnings This equipment is intended for use in a laboratory test environment only It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are designed to provide reasonable protection against radio frequency interference Operation of this equipment in other environments may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required to correct this interference EVM IMPORTANT NOTICE Texas Instruments provides the enclosed product s under the following conditions This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for c
3. connects V to GPIO1 51 GPIO1 The GPIO1 input is configured on the TPS65020 as debounced push button that drives an ON OFF circuit with output at GPIO2 S2 is a normally open momentary push button switch that when pressed connects the HOT RST S2 HOT RST 1 TPS65020 to GND generating the Hot Reset pulse The RST pin is externally 22 Setup The following steps must be followed before the EVM is operated Install the TPS65020EVM Software Connect input voltages and loads to the EVM Configure all EVM jumpers to factory setting 1 2 3 JP4 ON JP1 3 3V JP3 1 55 V 2 2 5 JP5 ON JP6 ON JP7 ON Connect the Molex cable between the EVM and the EV2300 Note that the Molex cable must connect to the connector on the EV2300 Connect the USB cable between the computer and the EVM Turn on all supplies and loads Run the TPS65020EVM software 3 Board Layout This section provides the TPS65020EVM 110 board layout and illustrations SLVU138 August 2005 TPS65020EVM 110 User s Guide 3 www BDTIC com TI 3 TEXAS INSTRUMENTS www ti com Board Layout 3 1 Layout Board layout is critical for all switch mode power supplies Figure 1 through Figure 5 show the board layout for the TPS65020EVM 110 PWB The nodes with high switching frequencies and currents are short and are isolated from the noise sensitive feedback circuitry Careful attention has been given to the
4. which is run from the PC sends the command to the PC USB port The EV2300 receives the USB command and converts the signal to an protocol It then sends the 2 signal to the TPS65020 board When the user reads a status register from the EVM the PC sends a command to read a register on the EVM When the EVM receives the command it reports the status of the register via the interface The EV2300 receives the information on the interface converts it to a USB protocol and sends it to the PC Software Texas Instruments has provided software to assist the user in evaluating this EVM To install the software insert the enclosed CD into your computer The software should start automatically If it does not simply go to Start Run and type DASLVU138 exe and click lt OK gt assuming that D is your CD drive The program should run without errors If any problems occur that result in the program not being installed view the readme txt file on the CD for further information Check the TPS65020 product folder on the TI website for the latest revision of the software Setup This section describes the jumpers and connectors on the EVM as well as how to properly connect setup and use the TPS65020EVM 110 Input Output Connector Descriptions INPUT OUTPUT DESCRIPTION Input voltage from external power supply recommended maximum 5 5 V Input current is dependent on load but is typically below 2 A J2 GND Thi
5. INSTRUMENTS www ti com Schematic and Bill of Materials ou oon oou oou Figure 5 Routing Bottom Layer 4 Schematic and Bill of Materials This section provides the TPS65020EVM 110 schematic and bill of materials 8 TPS65020EVM 110 User s Guide SLVU138 August 2005 www BDTIC com TI Schematic and Bill of Materials VIN 5 5v 1 J2 10 uF v Je 1 10 uF 43 viNLDO lt GND ll uF sw2 MRTC J7 2 2 uF Lp VRTC GND V Lu ON 9JP4 0 0 1 l OFF VIN ON verc 818 1 0 u C6 1 0 uF TPS65020RHA VDCDC1 24 5 2 OFF c9 14 10 uF 1 uF J11 Y IVPULLUP H 45k 4 75 RI VIN 9 6 INSTRUMENTS www ti com Schematic 4 1 v CS 1500 L 100k WV Li VN TT 4 AN at B 01 Ln Red veuLLup RIeA 188k IVDCDC1 VINA 33v DEF1JP
6. routing of high frequency current loops See to the datasheet for specific layout guidelines e ON OFF 3 0V 3 5V VDCDC1 GND GND 1 55V 1 5 6 DCDC1 DEF1 DEFS J2 em m J1 0 LIYE HPA110 Rev A 2005 VLDO2 GND ON OFF GND VLDO1 Figure 1 Assembly Layer 4 TPS65020EVM 110 User s Guide SLVU138 August 2005 www BDTIC com TI TEXAS INSTRUMENTS www ti com Board Layout Ho Ho o mmmmmmummo o oon oou Figure 2 Top Layer SLVU138 August 2005 TPS65020EVM 110 User s Guide 5 www BDTIC com TI 3 TEXAS INSTRUMENTS www ti com Board Layout ou oon oou oou Figure 3 Routing GND Plane 6 TPS65020EVM 110 User s Guide SLVU138 August 2005 www BDTIC com TI 5 INSTRUMENTS www ti com Board Layout ou oon on oou oou Figure 4 Routing VIN Plane SLVU138 August 2005 TPS65020EVM 110 User s Guide 7 www BDTIC com TI 3 TEXAS
7. 1 3 0v R26 DEFLDO1 0 2 JP8 A VINA DEFLDO2 2 5V JP9 DEF2 JP2 J6 mE 2 VINA 1 55V 542 DEF3 R 13V VDCDC1 95 VRTC VBACKUP E 1 GND A Used with TPS65021 only VPULLUP SDA Pin 3 SCL Pin 2 GND Pin 1 SDA Pin 3 SCL Pin 2 GND Pin 1 V VDCDC2 412 gt c10 15 VoCDC2 10 uF 10 uF 9 uF 10 ul La ON eJP6 06063 OFF VIN ry ON JP7 LDO I or J14 001 2 15 16 C11 C16 Y 10 uF 10 uF 1 002 2 gt J17 VDCDC3 71 9 TPS65020EVM 110 User s Guide Figure 6 565020 110 Schematic SLVU138 August 2005 www BDTIC com TI Wy TEXAS INSTRUMENTS www ti com Related Documentation 4 2 Bill of Material Table 1 HPA110A BOM Count Ref Des Value Description Size Part No MFR 001 002 C1 C2 C4 C9 9 9 C10 C11 10 Capacitor ceramic 10 uF 6 3 V X5R 20 0805 C2012X5R0J106K TDK C14 C15 C16 C8 C12 5 4 4 C13 C18 2 2 uF Capacitor ceramic 2 2 uF 6 3 V X5R 10 0603 C1608X5R0J225K TDK C3 C6 4 4 4 C7 17 1 0 uF Capacitor Ceramic 1 0 uF 6 3 V X5R 10 0603 C1608X5R0J105K TDK 1 1 C5 1500
8. 35 TEXAS User s Guide INSTRUMENTS SLVU138 August 2005 TPS65020EVM 110 User s Guide This Users Guide describes the characteristics operation and use of the TPS65020EVM 110 evaluation module EVM This EVM is designed to help the user evaluate and test the various operating modes of the TPS65020 This User s Guide includes setup instructions for the hardware and software a schematic diagram a bill of materials BOM and PCB layout drawings for the evaluation module Contents 1 aire UTE 1 2 I ME C E 2 3 Board Lay Out nee 3 4 Schematic and Bill of 1 4 8 5 Related Documentation 10 List of Figures 1 Assembly enhn e nnne ene hme em nnn enne nnn 4 2 3 Routing GND 6 4 Routing VIN Planes CAPUAE UEM LUE INE 7 5 Routing Bottom 8 6 TPS65020EVM 110 5 9 List of Tables 1 E RS 10 1 Introduction The Texas Instruments TPS65020EVM is an integrated Power Management IC for applications that are p
9. ible permanent damage to the EVM Please consult the EVM User s Guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 100 C The EVM is designed to operate properly with certain components above 100 C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching transistors pass transistors and current sense resistors These types of devices can be identified using the EVM schematic located in the EVM User s Guide When placing measurement probes near these devices during operation please be aware that these devices may be very warm to the touch Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright O 2005 Texas Instruments Incorporated TPS65020EVM 110 User s Guide SLVU138 August 2005 www BDTIC com TI IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries TI reserve the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl s terms a
10. nd conditions of sale supplied at the time of order acknowledgment TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with standard warranty Testing and other quality control techniques are used to the extent deems necessary to support this warranty Except where mandated by government requirements testing of all parameters of each product is not necessarily performed TI assumes no liability for applications assistance or customer product design Customers are responsible for their products and applications using Tl components To minimize the risks associated with customer products and applications customers should provide adequate design and operating safeguards TI does not warrant or represent that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data shee
11. ommercial use As such the goods being provided may not be complete in terms of required design marketing and or manufacturing related protective considerations including product safety measures typi cally found in the end product incorporating the goods As a prototype this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may not meet the technical requirements of the directive Should this evaluation kit not meet the specifications indicated in the EVM User s Guide the kit may be returned within 30 days from the date of delivery for a full retund THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED IMPLIED OR STATUTORY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE The user assumes all responsibility and liability for proper and safe handling of the goods Further the user indemnifies TI from all claims arising from the handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE Liable to the other FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUEN
12. owered with one Li lon or Li Polymer cell and require multiple power rails The TPS65020 contains three highly efficient switching step down converters two LDOs and additional status and pins The device is controlled via an IC interface 1 1 Requirements In order for this EVM to operate properly the following components must be connected and properly configured 1 2 Personal Computer PC A computer with a USB port is required to operate this EVM The TPS65020 interface software which is run on the PC communicates with the EVM via the PC USB port The user sends commands to the EVM as well as reads the contents of the TPS65020 internal registers through the USB port is a trademark of Philips Electronics SLVU138 August 2005 TPS65020EVM 110 User s Guide 1 www BDTIC com TI Setup 1 3 1 4 1 5 2 1 2 5 INSTRUMENTS www ti com Printed Circuit Board Assembly The TPS65020EVM 110 PCB contains the TPS65020 IC and its required external components This board contains several jumpers and connectors that allow the user to customize the board for specific operating conditions USB to FC Interface Board EV2300 The EV2300 is the link that allows the PC and the EVM to communicate One end of the EV2300 connects to the PC with the supplied USB cable and the other end of the EV2300 connects to the EVM with the supplied Molex cable When the user writes a command to the EVM the interface program
13. pF Capacitor Ceramic 1500 pF 50 V X7R 1096 0603 C1608X7R1H152K TDK 1 1 D1 Red Diode LED Red Gullwing GW Type 20 0047 0 120 LN1261CAL Panasonic 1 4 mcd typ Diode LED Red Gullwing GW Type 20 ma 0 0 D2 Open 1 4 med typ 0 087 x 0 120 17 17 d Header 2 pin 100 mil spacing 36 pin strip 0 100 x 2 PTC36SAAN Sullins 1 1 420 ia Friction Lock Assembly pin Right 0 400 x 0 500 22 05 3041 Molex 2 2 J8 J9 Header 4 pin 100 mil spacing 36 pin strip 0 100 x 4 PTC36SAAN Sullins 7 7 JP1 JP7 Header 3 pin 100 mil spacing 36 pin strip 0 100 x 3 PTC36SAAN Sullins 0 2 JP8 JP9 Header 2 pin 100 mil spacing 36 pin strip 0 100 x 2 PTC36SAAN Sullins Inductor SMT 1 72 A 59 millionm VLCF4020T 2 2 L1 L2 2 2 uH 0 157 x 0 157 2R2N1R7 TDK as VLF4012AT 1 1 L3 2 2 uH Inductor SMT 1 5 A 87 milliohm 0 137 X 0 147 2R2M1R5 TDK 0 1 Open Resistor Chip xx Ohms 1 16 W 1 0603 R20 R21 DP 1 1 R11 10 Resistor Chip 10 Ohms 1 16 W 1 0603 Std Std 1 1 R12 1 20 Resistor Chip 1 20M Ohms 1 16 W 1 0603 Std Std 1 1 R13 499k Resistor Chip 499k Ohms 1 16 W 1 0603 Std Std 2 2 R18 R19 4 75k Resistor Chip 4 75k Ohms 1 16 W 196 0603 Std Std 3 a 0 Resistor Chip 0 Ohms 1 16 W 1 0603 Std Std 1 1 R8 1 0k Resistor Chip 1 0k Ohms 1 16 W 196 0603 Std Std R9 R10 6 6 R14 R15 100k Resistor Chip 100k Ohms 1 16 W 1 0603 Std Std R16 R17 0 1825 R26 100k Resistor
14. r ti com Security www ti com security RFID www ti rfid com Telephony www ti com telephony Low Power www ti com Ipw Video amp Imaging www ti com video Wireless Wireless www ti com wireless Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2007 Texas Instruments Incorporated www BDTIC com TI
15. s is the return connection for Vj Input voltage and return for LDO1 and LDO2C Resistor R23 connects this pin to VDCDC1 If an external power supply is used remove R23 Recommended maximum input voltage is 5 5 V Input voltage and return for VSYSIN one of the input voltages for RTC Resistor R24 connects this J4 VSYSIN GND input to VDCDCt1 If an external power supply is used remove R24 Recommended maximum input voltage is 4 V Input voltage and return for VBACKUP one of the input voltages for RTC There is no on board connections to a voltage input Recommended maximum input voltage is 4 V Direct connection to the GPIO1 and GPIO2 pins For this EVM GPIO1 is configured as a push button input and GPIO2 is configured as an LED output J7 VRTC GND Output voltage from the circuit Four fault outputs are available on this connector PWRFAIL Fault occurs when input voltage is below 3 V Pulled up to VRTC when safe low for fail J1 VIN J3 VINLDO GND 45 VBACKUP GND 46 GPIO1 GPIO2 INT Fault occurs when there is a fail on an input or output voltage It acts as a sum fail Pulled up to V when safe low for fail RESPWRON Low reset signal controlled by SW2 300 mS Pulled up to V normally LOWBAT Fault occurs when input voltage is below 3 6 V Pulled up to V when safe low for fail J8 Fault Outputs J9 USB This header duplicates the signals from
16. the J20 interface connector J10 VDCDC1 S from DCDC1 switching regulator maximum output current is 1 2 A default voltage setting is TPS65020EVM 110 User s Guide SLVU138 August 2005 www BDTIC com TI 9 TEXAS INSTRUMENTS www ti com Board Layout INPUT OUTPUT DESCRIPTION J11 GND Return for VDCDC1 J12 VDCDC2 Output from DCDC2 switching regulator maximum output current 1 A default voltage setting 2 5 V J13 GND Return for VDCDC2 J14 VLDO1 Output from the low drop out regulator VLDO1 maximun current out is 50 mA default value 1 1 V 15 GND Return for VLDO1 J16 VLDO2 Output from the low drop out regulator VLDO2 maximum current out is 50 mA default value 1 3 V J17 GND Return for VLDO2 J18 VDCDC3 Output from the switching regulator maximum current is 800 mA default value 1 55 A J19 GND Return for VDCDC3 J20 USB USB interface connector JP1 DEF 1 Sets voltage for DCDC1 to 3 V or 3 3 V JP2 DEF 2 Sets voltage for DCDC2 to 2 5 V or 1 8 V JP3 DEF 3 Sets voltage for DCDC3 to 1 55 V or 1 3 V JP4 DCDC1 ON OFF EN for regulator DCDC1 default setting is ON JP5 DCDC2 ON OFF EN for regulator DCDC2 default setting is ON JP6 DCDC3 ON OFF EN for regulator DCDC3 default setting is ON JP7 LDO ON OFF EN for both LDO1 and 1002 regulators default setting is ON S1 is a normally open momentary push button switch that when pressed
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