TPS82740AEVM-617

User's Guide SLVUA72 – June 2014 TPS82740xEVM-617 This user’s guide describes the characteristics, operation, and use of the Texas Instruments TPS82740x evaluation module (EVM). This EVM is designed to help the user easily evaluate and test the operation and functionality of the TPS82740x. The EVM converts a 2.2-V to 5.5-V input voltage to a regulated output voltage that is set between 1.8 V and 2.5 V (TPS82740A) or 2.6 V to 3.3 V (TPS82740B) at up to 200 mA. The TPS82740x also includes a load switch and features an ultra-low quiescent current of 360 nA. This user’s guide includes setup instructions for the hardware, a printed-circuit board layout for the EVM, a schematic diagram, and a bill of materials. 1 2 3 4 5 Contents Introduction ................................................................................................................... 1.1 Features .............................................................................................................. 1.2 Applications .......................................................................................................... TPS82740xEVM-617 Schematic........................................................................................... Connector and Test Point Descriptions ................................................................................... 3.1 J1 Input Connectors ................................................................................................ 3.2 J2 Output Connector ............................................................................................... 3.3 J3 Load Connector ................................................................................................. 3.4 Other Connectors ................................................................................................... 3.5 Jumpers .............................................................................................................. TPS82740xEVM Assembly Drawings and Layout....................................................................... Bill of Materials ............................................................................................................... 2 2 2 3 4 4 4 4 5 5 7 9 List of Figures 1 TPS82740xEVM Schematic ................................................................................................ 3 2 TPS82740xEVM Component Placement (Top View) ................................................................... 7 3 TPS82740xEVM Top-Side Copper (Top View) .......................................................................... 7 4 TPS82740xEVM Inner Layer 1 Copper (Top View) ..................................................................... 8 5 TPS82740xEVM Inner Layer 2 Copper (Top View) ..................................................................... 8 6 TPS82740xEVM Bottom-Side Copper (Top View) ...................................................................... 8 List of Tables 1 TPS82740xEVM-617 Bill of Materials ..................................................................................... 9 SLVUA72 – June 2014 Submit Documentation Feedback TPS82740xEVM-617 Copyright © 2014, Texas Instruments Incorporated 1 Introduction 1 www.ti.com Introduction The TPS82740x devices are a series of high-frequency, synchronous, step-down dc-dc converters optimized for battery-powered portable applications. Intended for low-power applications, the TPS82740x supports up to 200 mA and features a quiescent current of 360 nA typical. 1.1 Features • • • • • • 1.2 Input voltage range: 2.2 V up to 5.5 V Adjustable output voltage 360-nA typical quiescent current Up to 200-mA output current Integrated slew rate controlled load switch RF-friendly DCS-control Applications • • • Bluetooth® low energy, RF4CE, ZigBee® Wearable electronics Energy harvesting Bluetooth is a registered trademark of Bluetooth SIG, Inc.. ZigBee is a registered trademark of ZigBee Alliance. 2 TPS82740xEVM-617 SLVUA72 – June 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated TPS82740xEVM-617 Schematic www.ti.com 2 TPS82740xEVM-617 Schematic Figure 1 illustrates the TPS82740xEVM-617 schematic. NOTE: For reference only; see Table 1 for specific values. Figure 1. TPS82740xEVM Schematic SLVUA72 – June 2014 Submit Documentation Feedback TPS82740xEVM-617 Copyright © 2014, Texas Instruments Incorporated 3 Connector and Test Point Descriptions www.ti.com 3 Connector and Test Point Descriptions 3.1 J1 Input Connectors 3.1.1 Pin 1 and 2: VIN This header is the positive connection to the input power supply. The power supply must be connected between these pins and pins 5 and 6 (GND). Twist the leads to the input supply and keep them as short as possible. The input voltage must be between 2.2 V and 5.5 V. 3.1.2 Pin 3: Input Sense VIN This header is intended to measure the input voltage directly on the input capacitor close to the device. Therefore, a four-wire power and sense supply can be connected. Twist the leads to the sensing connector. 3.1.3 Pin 4: Input Sense GND This header is intended to measure the GND close to the input of the device. Therefore, a four-wire power and sense supply can be connected. Twist the leads to the sensing connector. 3.1.4 Pin 5 and 6: GND This header is the return connection to the input power supply. Connect the power supply between these pins and pins 1 and 2 (VIN). Twist the leads to the input supply and keep them as short as possible. The input voltage must be between 2.2 V and 5.5 V. 3.2 3.2.1 J2 Output Connector Pin 1 and 2: VOUT This header is the positive connection of the output voltage. Connect the load between these pins and pins 5 and 6 (GND). 3.2.2 Pin 3: Output Sense VOUT This header is intended to measure the output voltage directly on the output capacitors. 3.2.3 Pin 4: Output Sense GND This header is intended to measure the GND close to the output of the device. 3.2.4 Pin 5 and 6: GND This is the return connection of the output voltage. Connect the load between these pins and pin 1 and 2 (VOUT). 3.3 3.3.1 J3 Load Connector Pin 1 and 2: LOAD This header is the positive connection of the load voltage. Connect the load between these pins and pins 5 and 6 (GND). 3.3.2 Pin 3: Output Sense LOAD This header is intended to measure the output voltage directly on the output capacitors. 4 TPS82740xEVM-617 SLVUA72 – June 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Connector and Test Point Descriptions www.ti.com 3.3.3 Pin 4: Output Sense GND This header is intended to measure the GND close to the output of the device. 3.3.4 Pin 5 and 6: GND This is the return connection of the output voltage. Connect the load between these pins and pin 1 and 2 (VOUT). 3.4 3.4.1 Other Connectors J4: SMA Input Connector This SMA connector is connected to the input voltage of the converter. It is used to easily analyze the noise spectrum of the input voltage with a spectrum analyzer. By default, J4 is not assembled on the EVM. 3.4.2 J5: SMA Output Connector This SMA connector is connected to the output voltage of the converter. It is used to easily analyze the noise spectrum of the output voltage with a spectrum analyzer. By default, J5 is not assembled on the EVM. 3.4.3 J6: SMA Load Connector This SMA connector is connected to the load switch voltage of the converter. It can be used to easily analyze the noise spectrum of the output voltage with a spectrum analyzer. By default, J6 is not assembled on the EVM. 3.5 3.5.1 Jumpers JP1: Enable Jumper Placing a jumper across pins EN and ON ties the EN pin to VIN and enables the device. Placing a jumper across pins EN and OFF ties the EN pin to GND which disables the device. 3.5.2 JP2: CTRL, Load Switch Control Jumper Placing a jumper across pins ON and CTRL ties the CTRL pin to VIN and enables the internal load switch. Placing a jumper across pins OFF and CTRL ties the CTRL pin to GND, and disables the internal load switch. 3.5.3 JP2: CTRL, Load Switch Control Jumper Placing a jumper across pins ON and CTRL ties the CTRL pin to VIN and enables the internal load switch. Placing a jumper across pins OFF and CTRL ties the CTRL pin to GND, and disables the internal load switch. 3.5.4 JP3: VSEL1, Output Voltage Selection Pin 1 Placing a jumper across pins VSEL1 and HIGH ties the VSEL1 pin to VIN and sets the device pin VSEL1 to HIGH. Placing a jumper across pins VSEL1 and LOW ties the VSEL1 pin to GND and sets the device pin VSEL1 to LOW. 3.5.5 JP3: VSEL2, Output Voltage Selection Pin 2 Placing a jumper across pins VSEL2 and HIGH ties the VSEL2 pin to VIN and sets the device pin VSEL2 to HIGH. Placing a jumper across pins VSEL2 and LOW ties the VSEL2 pin to GND and sets the device pin VSEL2 to LOW. SLVUA72 – June 2014 Submit Documentation Feedback TPS82740xEVM-617 Copyright © 2014, Texas Instruments Incorporated 5 Connector and Test Point Descriptions 3.5.6 www.ti.com JP3: VSEL3, Output Voltage Selection Pin 3 Placing a jumper across pins VSEL3 and HIGH ties the VSEL3 pin to VIN and sets the device pin VSEL3 to HIGH. Placing a jumper across pins VSEL3 and LOW ties the VSEL3 pin to GND and sets the device pin VSEL3 to LOW. 6 TPS82740xEVM-617 SLVUA72 – June 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated TPS82740xEVM Assembly Drawings and Layout www.ti.com 4 TPS82740xEVM Assembly Drawings and Layout Figure 2 through Figure 6 show the design of the TPS82740xEVM-617 printed circuit boards. The EVM has been designed using a four-layer PCB with all components in an active area on the top side of the board. Moving components to both sides of the PCB or using additional internal layers can offer additional size reduction for space-constrained systems. Figure 2. TPS82740xEVM Component Placement (Top View) Figure 3. TPS82740xEVM Top-Side Copper (Top View) SLVUA72 – June 2014 Submit Documentation Feedback TPS82740xEVM-617 Copyright © 2014, Texas Instruments Incorporated 7 TPS82740xEVM Assembly Drawings and Layout www.ti.com Figure 4. TPS82740xEVM Inner Layer 1 Copper (Top View) Figure 5. TPS82740xEVM Inner Layer 2 Copper (Top View) Figure 6. TPS82740xEVM Bottom-Side Copper (Top View) 8 TPS82740xEVM-617 SLVUA72 – June 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Bill of Materials www.ti.com 5 Bill of Materials Table 1 lists the bill of materials for the TPS82740xEVM. Table 1. TPS82740xEVM-617 Bill of Materials Count RefDes Value Description Size Part Number MFR 1 C1 100uF Capacitor, Ceramic, 6.3V, X5R 1210 GRM32ER60J107ME20L muRata 0 C2, C3, C4, C5 open Capacitor, Ceramic 0603 Std Std 3 J1, J2, J3 Header, 100mil spacing , 6x1 0.100 inch x 6 TSW-106-07-G-S Samtec 5 JP1, JP2, JP3, JP4, JP5 Header, 100mil spacing , 3x1 0.210 inch x 3 TSW-103-07-G-S Samtec 0 J4, J5, J6 Connector, SMA Jack SMA 142-0711-201 Emerson 0 FB1, FB2 Ferrite Bead, 0603 Std Std 0 R1, R2, R3 49.9 Resistor, SMD 0402 Std Std -001 -002 1 0 U1 TPS82740A SIP-Module, 200-mA, 360nA Iq Step-Down Converter SIP-9 TPS82740ASIP TI 0 1 U1 TPS82740B SIP-Module, 200-mA, 360nA Iq Step-Down Converter SIP-9 TPS82740BSIP TI SLVUA72 – June 2014 Submit Documentation Feedback TPS82740xEVM-617 Copyright © 2014, Texas Instruments Incorporated 9 ADDITIONAL TERMS AND CONDITIONS, WARNINGS, RESTRICTIONS, AND DISCLAIMERS FOR EVALUATION MODULES Texas Instruments Incorporated (TI) markets, sells, and loans all evaluation boards, kits, and/or modules (EVMs) pursuant to, and user expressly acknowledges, represents, and agrees, and takes sole responsibility and risk with respect to, the following: 1. User agrees and acknowledges that EVMs are intended to be handled and used for feasibility evaluation only in laboratory and/or development environments. Notwithstanding the foregoing, in certain instances, TI makes certain EVMs available to users that do not handle and use EVMs solely for feasibility evaluation only in laboratory and/or development environments, but may use EVMs in a hobbyist environment. All EVMs made available to hobbyist users are FCC certified, as applicable. Hobbyist users acknowledge, agree, and shall comply with all applicable terms, conditions, warnings, and restrictions in this document and are subject to the disclaimer and indemnity provisions included in this document. 2. Unless otherwise indicated, EVMs are not finished products and not intended for consumer use. EVMs are intended solely for use by technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems. 3. User agrees that EVMs shall not be used as, or incorporated into, all or any part of a finished product. 4. User agrees and acknowledges that certain EVMs may not be designed or manufactured by TI. 5. User must read the user's guide and all other documentation accompanying EVMs, including without limitation any warning or restriction notices, prior to handling and/or using EVMs. Such notices contain important safety information related to, for example, temperatures and voltages. For additional information on TI's environmental and/or safety programs, please visit www.ti.com/esh or contact TI. 6. User assumes all responsibility, obligation, and any corresponding liability for proper and safe handling and use of EVMs. 7. Should any EVM not meet the specifications indicated in the user’s guide or other documentation accompanying such EVM, the EVM may be returned to TI within 30 days from the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY TI TO USER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. TI SHALL NOT BE LIABLE TO USER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RELATED TO THE HANDLING OR USE OF ANY EVM. 8. No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or combination in which EVMs might be or are used. TI currently deals with a variety of customers, and therefore TI’s 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 with respect to the handling or use of EVMs. 9. User assumes sole responsibility to determine whether EVMs may be subject to any applicable federal, state, or local laws and regulatory requirements (including but not limited to U.S. Food and Drug Administration regulations, if applicable) related to its handling and use of EVMs and, if applicable, compliance in all respects with such laws and regulations. 10. User has sole responsibility to ensure the safety of any activities to be conducted by it and its employees, affiliates, contractors or designees, with respect to handling and using EVMs. Further, user is responsible to ensure that any interfaces (electronic and/or mechanical) between EVMs and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard. 11. User shall employ reasonable safeguards to ensure that user’s use of EVMs will not result in any property damage, injury or death, even if EVMs should fail to perform as described or expected. 12. User shall be solely responsible for proper disposal and recycling of EVMs consistent with all applicable federal, state, and local requirements. Certain Instructions. User shall operate EVMs within TI’s recommended specifications and environmental considerations per the user’s guide, accompanying documentation, and any other applicable requirements. Exceeding the specified ratings (including but not limited to input and output voltage, current, power, and environmental ranges) for EVMs may cause property damage, personal injury or death. If there are questions concerning these ratings, user should contact a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the applicable 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 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using EVMs’ schematics located in the applicable EVM user's guide. When placing measurement probes near EVMs during normal operation, please be aware that EVMs may become very warm. As with all electronic evaluation tools, only qualified personnel knowledgeable in electronic measurement and diagnostics normally found in development environments should use EVMs. Agreement to Defend, Indemnify and Hold Harmless. User agrees to defend, indemnify, and hold TI, its directors, officers, employees, agents, representatives, affiliates, licensors and their representatives harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of, or in connection with, any handling and/or use of EVMs. User’s indemnity shall apply whether Claims arise under law of tort or contract or any other legal theory, and even if EVMs fail to perform as described or expected. Safety-Critical or Life-Critical Applications. If user intends to use EVMs in evaluations of safety critical applications (such as life support), and a failure of a TI product considered for purchase by user for use in user’s product would reasonably be expected to cause severe personal injury or death such as devices which are classified as FDA Class III or similar classification, then user must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. RADIO FREQUENCY REGULATORY COMPLIANCE INFORMATION FOR EVALUATION MODULES Texas Instruments Incorporated (TI) evaluation boards, kits, and/or modules (EVMs) and/or accompanying hardware that is marketed, sold, or loaned to users may or may not be subject to radio frequency regulations in specific countries. General Statement for EVMs Not Including a Radio For EVMs not including a radio and not subject to the U.S. Federal Communications Commission (FCC) or Industry Canada (IC) regulations, TI intends EVMs to be used only for engineering development, demonstration, or evaluation purposes. EVMs are not finished products typically fit for general consumer use. EVMs may nonetheless generate, use, or radiate radio frequency energy, but have not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or the ICES-003 rules. Operation of such EVMs 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. General Statement for EVMs including a radio User Power/Frequency Use Obligations: For EVMs including a radio, the radio included in such EVMs is intended for development and/or professional use only in legally allocated frequency and power limits. Any use of radio frequencies and/or power availability in such EVMs and their development application(s) must comply with local laws governing radio spectrum allocation and power limits for such EVMs. It is the user’s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and unauthorized by TI unless user has obtained appropriate experimental and/or development licenses from local regulatory authorities, which is the sole responsibility of the user, including its acceptable authorization. U.S. Federal Communications Commission Compliance For EVMs Annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant Caution This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications could void the user's authority to operate the equipment. FCC Interference Statement for Class A EVM devices This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at its own expense. FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Industry Canada Compliance (English) For EVMs Annotated as IC – INDUSTRY CANADA Compliant: This Class A or B digital apparatus complies with Canadian ICES-003. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Concerning EVMs Including Radio Transmitters This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concerning EVMs Including Detachable Antennas Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Canada Industry Canada Compliance (French) Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de l'utilisateur pour actionner l'équipement. Concernant les EVMs avec appareils radio Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2014, Texas Instruments Incorporated spacer Important Notice for Users of EVMs Considered “Radio Frequency Products” in Japan EVMs entering Japan are NOT certified by TI as conforming to Technical Regulations of Radio Law of Japan. If user uses EVMs in Japan, user is required by Radio Law of Japan to follow the instructions below with respect to EVMs: 1. 2. 3. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan, Use EVMs only after user obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to EVMs, or Use of EVMs only after user obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to EVMs. Also, do not transfer EVMs, unless user gives the same notice above to the transferee. 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