User's GuideSLVU258A – October 2008 – Revised October 2008
TL1963EVM-384
This user’s guide describes the characteristics, operation, and use of the TL1963EVM-384 evaluationmodule (EVM). This EVM demonstrates the Texas Instruments TL1963A-xx low-noisefast-transient-response 1.5-A low-dropout (LDO) voltage regulator. This user’s guide includes setupinstructions, a schematic diagram, a bill of materials (BOM), and PCB layout drawings for the EVM.
Topic .................................................................................................. Page
1 Introduction ............................................................................... 22 Setup ........................................................................................ 23 Operation ................................................................................... 34 Test Results ............................................................................... 35 Board Layout ............................................................................. 66 Schematic and Bill of Materials (BOM) ......................................... 10
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1 Introduction
1.1 Related Documentation From Texas Instruments
2 Setup
2.1 Input/Output Connector Descriptions
2.1.1 J1 – INPUT (4-Wire Power/Sense Option)
2.1.2 J3 – IN_GND (4-Wire Power/Sense Option)
2.1.3 J2 – OUTPUT (4-Wire Power/Sense Option)
2.1.4 J4 – OUT_GND (4-Wire Power/Sense Option)
2.1.5 JP1 – ENABLE
2.1.6 JP2 – MODE
Introduction
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The TL1963EVM-384 helps designers evaluate the operation and performance of the TL1963A-xx dc/dcconverter. This converter is a 1.5-A low-noise fast-transient-response regulator.
TL1963A-xx 1.5-A Low-Noise Fast-Transient-Response Low-Dropout Regulator in 5DDPAK/TO-263package data sheet (SLVS719 )
This section describes the jumpers and connectors on the EVM and how to properly connect, set up, anduse the TL1963EVM-384.
This is the positive input supply voltage. Twist the leads to the input supply and keep them as short aspossible to minimize EMI transmission.
This is the return connection for the input power supply of the converter.
This is the positive connection from the output. Connect this pin to the positive input of the load.
This is the return connection for the output.
This jumper enables or disables the regulator. Connecting the shorting jumper between pins 1 and 2 (VINand 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.
This jumper sets the mode of the TL1963A-xx. Connecting the shorting jumper between pins 1 and 2forces the TL1963A-xx into fixed-output mode. Use this setting with fixed-output devices only. Remove J8shorting jumper for adjustable-output devices.
For adjustable-output devices, the output voltage may be selected using these equations:V
OUT
= 1.21 (1 + R2 / R1) + I
ADJ
×R2I
ADJ
= 1.21 / R1R1 < 4.17 k Ω
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3 Operation
4 Test Results
V = 4.3 V
C = 10 µF ceramic
IN
OUT
C = 10 µF ceramic
IN
V = 3.3 V
OUT
I = 10 mA to 500 mA
Load
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Operation
Connect the positive input power supply to J1. Connect the input power return (ground) to J3. TheTL1963A-xx device has an absolute maximum input voltage of 20 V. The recommended maximumoperating voltage is 20 V.
Connect the desired load between J2 and J4. The TL1963A-xx device can supply up to 1.5 A of outputcurrent.
Configure jumpers JP1 and JP2 as required. The functions of JP1 and JP2 are described in Section 2.1.5and Section 2.1.6 , respectively.
The following figures show typical responses of the TL1963A-xx to line and load transients.
Figure 1. Load Transient Response (I
Load
= 10 mA to 500 mA)
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V = 4.3 V
C = 10 µF ceramic
IN
OUT
C = 10 µF ceramic
IN
V = 3.3 V
OUT
I = 200 mA to 1.5 A
Load
V = 4.3 V
C = 10 µF ceramic
IN
OUT
C = 10 µF ceramic
IN
V = 3.3 V
OUT
V = 4.3 V to 5.3 V
IN
Test Results
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Figure 2. Load Transient Response (I
Load
= 200 mA to 1.5 A)
Figure 3. Line Transient Response (V
IN
= 4.3 V to 5.3 V)
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-90.0
-80.0
-70.0
-60.0
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10 100 1000 10000 100000 100000
Frequency (Hz)
Gain (db)
VIN = 4.3 V
ILOAD = 750 mA
COUT = 10 µF (ceramic)
CIN Removed
10 100 1k 10k 100k 1M
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Test Results
Figure 4. Power Supply Ripple Rejection
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6 Schematic and Bill of Materials (BOM)
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
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PWR
SEN
GND
SEN
GND
SEN
HPA384EvaluationModuldeRevA.
PWR
SEN
OFF
ON
ForAdjustableOutputRegulator:
VOUT=1.21(1+R2/R1)+(Iadj*R2)
Iadj=1.21/R1
R1<4.17Kohms
HPA384EVM
KTTPackage
1
1
22
2
SeeBOMforpartnumber
NotInstalled
3
3
ForFixedOutputVoltageRefgulator:Short
acrossJP8andDoNotInstallR1.
3
4
4
4
VINmin=2.5v
VINmax=20v
5
5
Warning:Extendedpowerdisapationcanheatuppart
toheatandcauseinjuryiftouched.
IOUTmax=1.5A
TP3
Testloop_Black
GND
TP3
Testloop_Black
GND
J2 OUTPUT
J2 OUTPUT
1
2
TP1
Testloop_Black
GND
TP1
Testloop_Black
GND
J4 OUT_GND
J4 OUT_GND
1
2
+
C4
+
C4
12
C1
10uF25v
C1
10uF25v
U1
TL1963A
U1
TL1963A
IN
2
SHDN
1ADJ 5
OUT 4
GND
3TAB 6
J1 INPUT
J1 INPUT
1
2
R1R1
R2R2
C3C3
JP1 ENABLE
JP1 ENABLE
1
2
3
J3 IN_GND
J3 IN_GND
1
2
JP2
MODE
JP2
MODE
1
2
TP2
Testloop_Black
GND
TP2
Testloop_Black
GND
C2
10uF25v
C2
10uF25v
Schematic and Bill of Materials (BOM)
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Figure 9 shows the EVM schematic. Table 1 shows the EVM BOM.
Figure 9. EVM Schematic
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Schematic and Bill of Materials (BOM)
Table 1. HPA384-EVM Bill of Materials
(1) (2) (3) (4)
Count
Reference Manu-Value Description Size Part NumberDesignator facturer01 02 03 04 05
2.5 in x 2.5 in1 1 1 1 1 -- HPA384 PCB, HPA384 HPA384 Anyx 0.062 in
Capacitor, ceramic, GCM32ER71E1 1 1 1 1 C1 10 µF 1210 MuRata10 µF, 25 V, X5R 106KA57L
Capacitor, ceramic, GRM31CR61E1 1 1 1 1 C2 10 µF 1206 MuRata10 µF, 25 V, X5R 106KA12L
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
Connector terminal4 4 4 4 4 J1, J2, J3, J4 MKDS 1/2-3,5BK 2POS 5MM 1711026 Phoenixblock, 1x2 pos
HMTSW-102-07- Header, 2 pin, 100-mil HMTSW-102-1 1 1 1 1 JP2 0.100 in x 2 SamtecG-S-.230 spacing 07-G-S-.230
HMTSW-103-07- Header, 3 pin, 100-mil HMTSW-103-1 1 1 1 1 JP1 0.100 in x 3 SamtecG-S-.230 spacing 07-G-S-.231
Resistor, chip,value,0 0 0 0 0 R1 Selected by user 805 Std Std1/8 W, 5%
Resistor, chip,value,0 0 0 0 0 R2 Selected by user 805 Std Std1/8 W, 5%
Hardware 1/4-in screw 4/40 x 0.250 Keystone4 4 4 4 4 -- -- 99004/40 handle mtg in Electronics
SO1, SO2, Standoff, round, 4/40 x 4/40 x 0.250 Keystone4 4 4 4 4 -- 2025SO3, SO4 0.250 in, aluminum in Electronics
TP1, TP2,3 3 3 3 3 Black Testpoint .050 in dia TP-105-01-00 BiscoTP3
IC, single chip, low noise1.5 A, low dropout 5DDPAK/1 0 0 0 0 U1 TL1963A TL1963A TIregulator, adjustable TO263output 1.21 V to 20 V
IC, single chip, low noise1.5 A, low dropout 5DDPAK/0 1 0 0 0 U1 TL1963A-15 TL1963A-15 TIregulator, fixed output TO2631.5 V
IC, single chip, low noise1.5A, low dropout 5DDPAK/0 0 1 0 0 U1 TL1963A-18 TL1963A-18 TIregulator, fixed output TO2631.8 V
IC, single chip, low noise1.5 A, low dropout 5DDPAK/0 0 0 1 0 U1 TL1963A-25 TL1963A-25 TIregulator, fixed output TO2632.5 V
IC, single chip, low noise1.5 A, low dropout 5DDPAK/0 0 0 0 1 U1 TL1963A-33 TL1963A-33 TIregulator, fixed output TO2633.3 V
4 4 4 4 4 1 NA Shunt, 100 mil, black 0.100 929950-00 3M
(1)
These assemblies are ESD sensitive, ESD precautions must observed.(2)
These assemblies must be clean and free from flux and all contaminants. Use of no-clean flux is not acceptable.(3)
These assemblies must comply with workmanship standards IPC-A-610 Class 2.(4)
Reference designators marked with an asterisk (*) cannot be substituted. All other components can be substituted withequivalent manufacturers components.
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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 PURPOSESONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must haveelectronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be completein terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmentalmeasures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit doesnot 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 fromthe date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYERAND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OFMERCHANTABILITY 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 claimsarising 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 allappropriate 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 ANYINDIRECT, 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 orservices 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. Thisnotice contains important safety information about temperatures and voltages. For additional information on TI’s environmental and/orsafety 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, orcombination 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 PURPOSESONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radiofrequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which aredesigned to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments maycause interference with radio communications, in which case the user at his own expense will be required to take whatever measures maybe 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 questionsconcerning 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 85 °C. The EVM is designed to operateproperly with certain components above 85 °C as long as the input and output ranges are maintained. These components include but arenot limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identifiedusing the EVM schematic located in the EVM user's guide. When placing measurement probes near these devices during operation, pleasebe aware that these devices may be very warm to the touch.
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