User's Guide SLVU258A - October 2008 - Revised October 2008 TL1963EVM-384 This user's guide describes the characteristics, operation, and use of the TL1963EVM-384 evaluation module (EVM). This EVM demonstrates the Texas Instruments TL1963A-xx low-noise fast-transient-response 1.5-A low-dropout (LDO) voltage regulator. This user's guide includes setup instructions, a schematic diagram, a bill of materials (BOM), and PCB layout drawings for the EVM. Topic 1 2 3 4 5 6 .................................................................................................. Page Introduction ............................................................................... 2 Setup ........................................................................................ 2 Operation................................................................................... 3 Test Results ............................................................................... 3 Board Layout ............................................................................. 6 Schematic and Bill of Materials (BOM) ......................................... 10 SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback TL1963EVM-384 1 Introduction 1 www.ti.com Introduction The TL1963EVM-384 helps designers evaluate the operation and performance of the TL1963A-xx dc/dc converter. This converter is a 1.5-A low-noise fast-transient-response regulator. 1.1 Related Documentation From Texas Instruments TL1963A-xx 1.5-A Low-Noise Fast-Transient-Response Low-Dropout Regulator in 5DDPAK/TO-263 package data sheet (SLVS719) 2 Setup This section describes the jumpers and connectors on the EVM and how to properly connect, set up, and use the TL1963EVM-384. 2.1 2.1.1 Input/Output Connector Descriptions J1 - INPUT (4-Wire Power/Sense Option) This is the positive input supply voltage. Twist the leads to the input supply and keep them as short as possible to minimize EMI transmission. 2.1.2 J3 - IN_GND (4-Wire Power/Sense Option) This is the return connection for the input power supply of the converter. 2.1.3 J2 - OUTPUT (4-Wire Power/Sense Option) This is the positive connection from the output. Connect this pin to the positive input of the load. 2.1.4 J4 - OUT_GND (4-Wire Power/Sense Option) This is the return connection for the output. 2.1.5 JP1 - ENABLE This jumper enables or disables the regulator. Connecting the shorting jumper between pins 1 and 2 (VIN and EN) enables the converter. Connecting the shorting jumper between pins 2 and 3 (EN and GND) disables the converter. Do not leave this pin floating. 2.1.6 JP2 - MODE This jumper sets the mode of the TL1963A-xx. Connecting the shorting jumper between pins 1 and 2 forces the TL1963A-xx into fixed-output mode. Use this setting with fixed-output devices only. Remove J8 shorting jumper for adjustable-output devices. For adjustable-output devices, the output voltage may be selected using these equations: VOUT = 1.21 (1 + R2 / R1) + IADJ x R2 IADJ = 1.21 / R1 R1 < 4.17 k 2 TL1963EVM-384 SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback Operation www.ti.com 3 Operation Connect the positive input power supply to J1. Connect the input power return (ground) to J3. The TL1963A-xx device has an absolute maximum input voltage of 20 V. The recommended maximum operating voltage is 20 V. Connect the desired load between J2 and J4. The TL1963A-xx device can supply up to 1.5 A of output current. Configure jumpers JP1 and JP2 as required. The functions of JP1 and JP2 are described in Section 2.1.5 and Section 2.1.6, respectively. 4 Test Results The following figures show typical responses of the TL1963A-xx to line and load transients. VIN = 4.3 V COUT = 10 F ceramic CIN = 10 F ceramic VOUT = 3.3 V ILoad = 10 mA to 500 mA Figure 1. Load Transient Response (ILoad = 10 mA to 500 mA) SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback TL1963EVM-384 3 Test Results www.ti.com VIN = 4.3 V COUT = 10 F ceramic CIN = 10 F ceramic VOUT = 3.3 V ILoad = 200 mA to 1.5 A Figure 2. Load Transient Response (ILoad = 200 mA to 1.5 A) VIN = 4.3 V COUT = 10 F ceramic CIN = 10 F ceramic VOUT = 3.3 V VIN = 4.3 V to 5.3 V Figure 3. Line Transient Response (VIN = 4.3 V to 5.3 V) 4 TL1963EVM-384 SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback Test Results www.ti.com -90.0 -80.0 -70.0 Gain (db) -60.0 -50.0 -40.0 -30.0 VIN = 4.3 V -20.0 ILOAD = 750 mA COUT = 10 F (ceramic) -10.0 CIN Removed 0.0 10 100 1k 1000 10k 10000 100k 100000 1M 100000 Frequency (Hz) Figure 4. Power Supply Ripple Rejection SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback TL1963EVM-384 5 Board Layout 5 www.ti.com Board Layout The following figures show the board layout of the EVM. Figure 5. EVM Board Layout (1 of 4) 6 TL1963EVM-384 SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback Board Layout www.ti.com Figure 6. EVM Board Layout (2 of 4) SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback TL1963EVM-384 7 Board Layout www.ti.com Figure 7. EVM Board Layout (3 of 4) 8 TL1963EVM-384 SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback Board Layout www.ti.com Figure 8. EVM Board Layout (4 of 4) SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback TL1963EVM-384 9 A B C D 5 VINmin=2.5v VINmax=20v 1 2 GND SEN 1 2 J3 IN_GND PWR SEN J1 INPUT 4 1 2 3 OFF ON JP1 ENABLE 10uF 25v C1 TP3 GND Testloop_Black TP1 GND Testloop_Black TP2 GND Testloop_Black SHDN IN 5 KTT Package 1 2 U1 HPA384 Evaluation Modulde RevA. 4 6 TAB GND TL1963EVM-384 3 10 3 1 3 5 4 TL1963A ADJ OUT 4 4 3 R1 Date: Size A 10uF 25v C2 2 C3 2 Monday, August 18, 2008 Document Number <Doc> HPA384 EVM MODE 3 JP2 Title 1 R2 2 2 SEN PWR 1 2 SEN Sheet GND 1 1 of 1 Rev A IOUTmax=1.5A J4 OUT_GND + C4 1 2 J2 OUTPUT Warning:Extended power disapation can heat up part to heat and cause injury if touched. For Adjustable Output Regulator: VOUT = 1.21(1+R2/R1) + (Iadj*R2) Iadj = 1.21/R1 R1 < 4.17K ohms 4 5 For Fixed Output Voltage Refgulator: Short across JP8 and Do Not Install R1. Not Installed 2 1 3 See BOM for part number 1 2 1 A B C D 6 2 5 Schematic and Bill of Materials (BOM) www.ti.com Schematic and Bill of Materials (BOM) Figure 9 shows the EVM schematic. Table 1 shows the EVM BOM. Figure 9. EVM Schematic SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback Schematic and Bill of Materials (BOM) www.ti.com Table 1. HPA384-EVM Bill of Materials (1) (2) (3) (4) Count (1) (2) (3) (4) Reference Designator Value Description Size Manufacturer Part Number 01 02 03 04 05 1 1 1 1 1 -- HPA384 PCB, HPA384 2.5 in x 2.5 in x 0.062 in HPA384 Any 1 1 1 1 1 C1 10 F Capacitor, ceramic, 10 F, 25 V, X5R 1210 GCM32ER71E 106KA57L MuRata 1 1 1 1 1 C2 10 F Capacitor, ceramic, 10 F, 25 V, X5R 1206 GRM31CR61E 106KA12L MuRata 0 0 0 0 0 C3 Selected by user Capacitor, ceramic 2010 Std Std 0 0 0 0 0 C4 Selected by user Capacitor, tantalum C Std Std 4 4 4 4 4 J1, J2, J3, J4 MKDS 1/2-3,5BK Connector terminal block, 1x2 pos 2POS 5MM 1711026 Phoenix 1 1 1 1 1 JP2 HMTSW-102-07G-S-.230 Header, 2 pin, 100-mil spacing 0.100 in x 2 HMTSW-10207-G-S-.230 Samtec 1 1 1 1 1 JP1 HMTSW-103-07G-S-.230 Header, 3 pin, 100-mil spacing 0.100 in x 3 HMTSW-10307-G-S-.231 Samtec 0 0 0 0 0 R1 Selected by user Resistor, chip,value, 1/8 W, 5% 805 Std Std 0 0 0 0 0 R2 Selected by user Resistor, chip,value, 1/8 W, 5% 805 Std Std 4 4 4 4 4 -- -- Hardware 1/4-in screw 4/40 handle mtg 4/40 x 0.250 in 9900 Keystone Electronics 4 4 4 4 4 SO1, SO2, SO3, SO4 -- Standoff, round, 4/40 x 0.250 in, aluminum 4/40 x 0.250 in 2025 Keystone Electronics 3 3 3 3 3 TP1, TP2, TP3 Black Testpoint .050 in dia TP-105-01-00 Bisco 1 0 0 0 0 U1 TL1963A IC, single chip, low noise 1.5 A, low dropout 5DDPAK/ regulator, adjustable TO263 output 1.21 V to 20 V TL1963A TI 0 1 0 0 0 U1 TL1963A-15 IC, single chip, low noise 1.5 A, low dropout 5DDPAK/ regulator, fixed output TO263 1.5 V TL1963A-15 TI 0 0 1 0 0 U1 TL1963A-18 IC, single chip, low noise 1.5A, low dropout 5DDPAK/ regulator, fixed output TO263 1.8 V TL1963A-18 TI 0 0 0 1 0 U1 TL1963A-25 IC, single chip, low noise 1.5 A, low dropout 5DDPAK/ regulator, fixed output TO263 2.5 V TL1963A-25 TI 0 0 0 0 1 U1 TL1963A-33 IC, single chip, low noise 1.5 A, low dropout 5DDPAK/ regulator, fixed output TO263 3.3 V TL1963A-33 TI 4 4 4 4 4 1 NA Shunt, 100 mil, black 929950-00 3M 0.100 These assemblies are ESD sensitive, ESD precautions must observed. These assemblies must be clean and free from flux and all contaminants. Use of no-clean flux is not acceptable. These assemblies must comply with workmanship standards IPC-A-610 Class 2. Reference designators marked with an asterisk (*) cannot be substituted. All other components can be substituted with equivalent manufacturers components. SLVU258A - October 2008 - Revised October 2008 Submit Documentation Feedback TL1963EVM-384 11 EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental measures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives. Should this evaluation board/kit not meet the specifications indicated in the User's Guide, the board/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. 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 User's Guide and, specifically, the Warnings and Restrictions notice in the User's Guide prior to handling the product. This notice contains important safety information about temperatures and voltages. For additional information on TI's environmental and/or safety programs, please contact the TI application engineer or visit www.ti.com/esh. 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. FCC WARNING This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to 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 WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 2 V to 20 V and the output voltage range of 0.6 V to 6 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 possible 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 85C. The EVM is designed to operate properly with certain components above 85C 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. 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