SLVU125A C1608X7R1H103KT C1608X7R1H104K C3216X7R1C106KT C2012X7R1C225KT 330-VDC

SLVU125A April 2005 Revised October 2005 TPS6555xEVM-097 This user's guide describes the characteristics, operation,

User's Guide SLVU125A SLVU125A April 2005 Revised October 2005 TPS6555xEVM-097 This user's guide describes the characteristics, operation, and use of the TPS6555xEVM-097 evaluation module (EVM). This EVM demonstrates the Texas Instruments TPS6555x integrated photo flash charger with IGBT driver. This user's guide includes setup instructions, a schematic diagram, a bill of materials (BOM), and PCB layout drawings for the evaluation module. 1 2 3 4 5 Contents Introduction . Setup . Board Layout . Schematic and Bill of Materials . Related Documentation From Texas Instruments . 2 2 4 7 9 List of Figures 1 2 3 4 Assembly Layer . Top Layer Routing . Bottom Layer Routing . TPS6555xEVM-097 Schematic . 5 6 7 8 List of Tables 1 4.3 J5 Pinout . 3 TPS6555xEVM-097 Bill of Materials . 9 SLVU125A SLVU125A April 2005 Revised October 2005 TPS6555xEVM-097 1 www.ti.com Introduction 1 Introduction The Texas Instruments TPS6555xEVM-097 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS6555x family of devices. These devices are highly integrated flyback converters used to charge photo-flash capacitors. The EVM contains one fully functional photo-flash charger capable of charging a photo-flash capacitor to 300 V from a battery with voltage between 1.8 V and 12 V. The EVM also provides a flash lamp and trigger circuit to help the designer evaluate the charging characteristics. Provisions have been made to disable the onboard lamp circuit so that the EVM can be connected to a user-supplied lamp and trigger circuit. 2 Setup This section describes the jumpers and connectors on the EVM as well as how to properly connect, set up, and use the TPS6555xEVM-097. WARNING The TPS6555xEVM-097 produces high voltage and is designed to charge the bulk flash capacitor to more than 285 volts. This capacitor can maintain this voltage for a long time, even after the input power has been removed from the board. Do not touch any exposed metal on the TPS6555xEVM-097 without first discharging the bulk flash capacitor. 2.1 Input/Output Connector Descriptions J1 Vbatt - This is the positive battery voltage input connection to the converter. This voltage should be between 1.8 Vdc and 12 Vdc. J2 GND - This is the return connection for the battery voltage to the converter. J3 J5 - This is the positive digital supply voltage. This should be a regulated 5-V input. J4 GND - This is the return connection for the digital supply voltage. J5 REMOTE CONTROL - This connector is used to connect the EVM to a personal computer as an optional method of controlling the EVM. All necessary control inputs and outputs for the converter are present on this connector. The flash and charge signals are inverted before connecting to the TPS6555x IC on the EVM board. The pinout for the connector is shown in Table 1. J6 User Lamp Module HV Connections - This connector is used to connect the EVM to a user-supplied lamp and trigger circuit. Pin 2 on this connector is the high-voltage side of the photo-flash capacitor; pin 1 is the trigger signal. See the EVM schematic for more information. J7 User Lamp Module HV Return Connections - This connector is used to connect the EVM to a user-supplied lamp and trigger circuit. Both pins of this connector are connected to the negative side of the photo-flash capacitor and provide the return path for the flash currents. JP1 and JP2 EVM Lamp Disconnect - These jumpers are used to disconnect the lamp and trigger circuit of the EVM so that a user-supplied lamp and trigger can be evaluated. The lamp and trigger are disconnected when the jumpers of both JP1and JP2 are removed. JP3 Ipeak - This jumper is used to externally set the charge current. Pin 2 of this connector is tied directly to the Ipeak pin of the TPS6555x. Five volts and ground are provided on the connector so that a resistor divider can be formed to set the peak charge current anywhere between the TPS6555x minimum and maximum values. Connecting a jumper from pin 2 (Ipeak) to pin 1 (+5V) configures the TPS6555x minimum and maximum values. Connecting a jumper from pin 2 (Ipeak) to pin 3 (GND) configures the TPS6555x to charge the flash capacitor using the minimum peak current. 2 TPS6555xEVM-097 SLVU125A SLVU125A April 2005 Revised October 2005 www.ti.com Setup Table 1. J5 Pinout Pin No. Signal Connection 1 Output: An active low indicates the flash capacitor is charged. 2 GND Signal ground 3 Charge Input: A negative edge initiates the charging of the capacitor. 4 GND Signal ground 5 Flash Input: A low signal initiates a lamp flash. 6 GND Signal ground 7 Ipeak Input: Used to provide the peak current set-point of the charger 8 GND Signal ground 9 +5V The pin is connected to the +5-V plane of the EVM board. 10 2.2 Charge Complete GND Signal ground Setup and Operation With Onboard Lamp and Trigger Circuit The following steps provide information about how to set up and operate the onboard lamp and trigger circuit. 1. Discharge the photo-flash capacitor by shorting C7 with a 15-k resistor for more than 20 seconds. Use a multimeter to measure the voltage on C7, and verify that the voltage is close to zero before continuing or touching any connectors or components. 2. If needed, install jumpers across JP1 and JP2 to connect the onboard lamp and trigger circuit to the control circuitry. 3. Connect the positive lead of a regulated 5-V supply to J3. 4. Connect the negative lead of a regulated 5-V supply to J4. 5. Connect the positive lead of a battery or power supply to J1. This voltage can be between 1.8 V and 12 V. 6. Connect the negative lead of a battery or power supply to J2. 7. Turn on the 5-V supply. 8. Turn on the battery voltage supply. 9. Push and hold the Charge button to start charging the flash capacitor. 10. Release the Charge button when the green Charge Complete LED illuminates. 11. Push the Flash switch to flash the lamp. 12. Repeat steps 9 through 11 as desired. 2.3 Setup and Operation With User-Supplied Lamp and Trigger Circuit Operation The following steps provide information about how to set up and operate the user-supplied lamp and trigger circuit. 1. Discharge the photo-flash capacitor by shorting C7 with a 15-k resistor for more than 20 seconds. Use a multimeter to measure the voltage on C7, and verify that the voltage is close to zero before continuing or touching any connectors or components. 2. Remove jumpers across JP1 and JP2 to disconnect the onboard lamp and trigger circuit from the control circuitry. The TPS6555xEVM should only be used to flash a single flash tube. 3. Connect the high-voltage portion of the user-supplied lamp circuit to pin 2 of J6. 4. Connect the trigger portion of the user-supplied lamp to pin 1 of J6. See the EVM schematic to verify circuit connection. 5. Connect the ground portion of the user lamp circuit to pin 1 of J7. SLVU125A SLVU125A April 2005 Revised October 2005 TPS6555xEVM-097 3 www.ti.com Board Layout 6. Connect the positive lead of a regulated 5-V supply to J3. 7. Connect the negative lead of a regulated 5-V supply to J4. 8. Connect the positive lead of a battery or power supply to J1. This voltage can be between 1.8 V and 12 V. 9. Connect the negative lead of a battery or power supply to J2. 10. Turn on the 5-V supply. 11. Turn on the battery voltage supply. 12. Push and hold the Charge switch to start charging the flash capacitor. 13. Release the Charge switch when the green Charge Complete LED illuminates. 14. Push Flash switch to flash the lamp. 15. Repeat steps 12 through 14 as desired. 3 Board Layout This section provides the TPS6555xEVM-097 board layout and illustrations. Board layout is critical for all high-frequency switch mode power supplies. Figure 1, Figure 2, and Figure 3 show the board layout for the TPS6555xEVM-097 PWB. The nodes with high switching frequencies and currents are kept as short as possible to minimize trace inductance. Careful attention has been given to the routing of high-frequency current loops and a single-point grounding scheme is used for all high-current and high-voltage traces. See the data sheet for specific layout guidelines. 4 TPS6555xEVM-097 SLVU125A SLVU125A April 2005 Revised October 2005 www.ti.com Board Layout Figure 1. Assembly Layer SLVU125A SLVU125A April 2005 Revised October 2005 TPS6555xEVM-097 5 www.ti.com Board Layout Figure 2. Top Layer Routing 6 TPS6555xEVM-097 SLVU125A SLVU125A April 2005 Revised October 2005 www.ti.com Schematic and Bill of Materials Figure 3. Bottom Layer Routing 4 Schematic and Bill of Materials This section provides the TPS6555xEVM-097 schematic (see Figure 4) and bill of materials. SLVU125A SLVU125A April 2005 Revised October 2005 TPS6555xEVM-097 7 www.ti.com Schematic and Bill of Materials Schematic + 4.1 Figure 4. TPS6555xEVM-097 Schematic 8 TPS6555xEVM-097 SLVU125A SLVU125A April 2005 Revised October 2005 www.ti.com Related Documentation From Texas Instruments 4.2 Bill of Materials Table 4.3. TPS6555xEVM-097 Bill of Materials COUNT Ref Des DESCRIPTION SIZE MFR PART NUMBER 3 Capacitor, Ceramic, 0.01-uF, 50-V, X7R, 10% 0603 TDK C1608X7R1H103KT C1608X7R1H103KT 1 C3 Capacitor, Ceramic, 0.1-uF, 50-V, X7R, 10% 0603 TDK C1608X7R1H104K C1608X7R1H104K 1 C4 Capacitor, Ceramic, 10-uF, 16-V, X7R, 10% 1206 TDK C3216X7R1C106KT C3216X7R1C106KT 2 C5, C6 Capacitor, Ceramic, 2.2-uF, 16-V, X7R, 10% 0805 TDK C2012X7R1C225KT C2012X7R1C225KT 1 C7 Capacitor, Aluminum, 120-uF, 330-VDC 330-VDC, ±20% 13 x 28 mm Rubycon 330 FW 120A 1 C8 Capacitor, Ceramic, 0.022-uF, 630-V, X7R, 10% 1206 TDK C3216X7R2J223KT C3216X7R2J223KT 1 D1 Diode, Rectifier, 1-A, 400-V SMA Diodes Inc. ES1G 1 D2 Diode, LED, Green, Gullwing, GW Type, 20ma, 7.5 mcd typ. 0.120 x 0.087 Panasonic LN1361CTR LN1361CTR 1 FL1 Flash Tube, 400v Max 2.126 x 0.157 Xicon 36FT050 36FT050 4 J1 - J4 Header, 2-pin, 100mil spacing, (36-pin strip) 0.100 x 2 Sullins PTC36SAAN PTC36SAAN 1 J5 Header, 2x5-pin, 100mil spacing (36-pin strip) 0.100 x 5 X 2 Sullins PTC36SAAN PTC36SAAN 2 J6, J7 Terminal Block, 2-pin, 15-A, 5.1mm 0.40 x 0.35 OST ED1609 ED1609 2 JP1, JP2 Header, 2-pin, 100mil spacing, (36-pin strip) 0.100 x 2 Sullins PTC36SAAN PTC36SAAN 1 JP3 Header, 3-pin, 100mil spacing, (36-pin strip) 0.100 x 3 Sullins PTC36SAAN PTC36SAAN 1 Q1 Trans, NChan Insulated-Gate Bipolar, 450V, SO-8 150A Silicon Standard SSM25G45EM SSM25G45EM 1 R1, R2 Resistor, Chip, 1.0k-Ohms, 1/16-W 1/16-W, 1% 0603 Std Std 1 R11 Resistor, Chip, 47.5k-Ohms, 1/16-W 1/16-W, 1% 0603 Std Std 2 R3, R4 Resistor, Chip, 100k-Ohms, 1/16-W 1/16-W, 1% 0603 Std Std 2 R5, R13 Resistor, Chip, 0-Ohms, 1/16-W 1/16-W, 5% 0603 Std Std 0 R6, R7, R12 Resistor, Chip, xx-Ohms, 1/16-W 1/16-W, 1% 0603 1 R8 Resistor, Chip, 150-Ohms, 1/16-W 1/16-W, 1% 0603 Std Std 2 R9, R10 Resistor, Chip, 475k-Ohms, 1/8W, 1% 1206 Std Std 2 S1, S2 Switch, SPST, PB Momentary, Sealed Washable 0.245 X 0.251 C&K KT11P2JM KT11P2JM 1 T1 Transformer, Flyback, 1:10.2 0.300 x 0.240 Coiltronics CTX16-17360 CTX16-17360 1 T2 Transformer, Trigger 0.197 Dia Xicon 422-2304 1 U1 IC, Dual Schmitt-Trigger Inverter SOT23-6 TI SN74LVC2G14DBV SN74LVC2G14DBV 1 U2 IC, Photo Flash Charger and IGBT Driver DGQ10 DGQ10 TI TPS65552ADGQ TPS65552ADGQ 1 U3 Single 2-Input X-OR Gate SOT-25 TI SN74LVC1G86DBV SN74LVC1G86DBV 1 - PCB, 4.4 In x 4.2 In x 0.062 In Any HPA097 HPA097 3 - Shunt, 100-mil, Black 0.100 3M 929950-00 4 5 C1, C2, C9 - Bumpon, Transparent 0.44" x 0.2" 3M SJ5303 SJ5303 Related Documentation From Texas Instruments TPS65552A TPS65552A, Integrated Photo Flash Charger and IGBT Driver data sheet (SLVS567 SLVS567) SLVU125A SLVU125A April 2005 Revised October 2005 TPS6555xEVM-097 9 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 (TI) 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 commercial 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 typically 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 refund. 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 CONSEQUENTIAL 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 TI 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 TI covering or relating to any machine, process, or combination in which such TI products or services might be or are used. EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 1.8 V to 12 V and the output voltage range of 285 V to 335 V. The TPS6555xxEVM-097 produces high voltage and is designed to charge the bulk flash capacitor to more than 285 volts. This capacitor can maintain this voltage for a long time, even after the input power has been removed from the board. Do not touch any exposed metal on the TPS6555xxEVM-097 without first discharging the bulk flash capacitor. Exceeding the specified input rnage may cause unexpected operation and/or irreversibel damage to the EVM. If there are questions concerning the inp0ut 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 possible permanent damage 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 25°C. The EVM is designed to operate properly with certain components above 25°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 65503, Dallas, Texas 75265 Copyright © 2005, Texas Instruments Incorporated 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 TI's terms and 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 TI's standard warranty. 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