Instruction/ maintenance manual of the product TPS62065 Texas Instruments
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User's Guide SLVU364 – March 2010 TPS62065/67EVM This user’s guide describes the characteristics, operation, and use of the TPS62065-67EVM-347 evaluation module (EVM). The TPS62065-67EVM-347 is a fully assembled and tested platform for evaluating the performance of both the TPS62065 and TPS62067 2-A step-down converters.
Introduction www.ti.com 1 Introduction The TPS62065-67EVM-347 is a fully assembled and tested pair of PCBs for evaluating the TPS62065 and TPS62067 2-A step-down converters. The EVM comes configured with both a TPS62065 IC and a TPS62067 IC; there are two PCBs, one for each respective step-down converter IC.
www.ti.com TPS62056/67EVM Schematic 3 TPS62056/67EVM Schematic Figure 1 shows the TPS62065EVM schematic. Figure 2 illustrates the TPS62067EVM schematic. Figure 1. TPS62065EVM Schematic Figure 2. TPS62067EVM Schematic NOTE: These diagrams are provided for reference only.
Connector and Test Point Descriptions www.ti.com 4 Connector and Test Point Descriptions 4.1 Enable Jumpers/Switches: TPS62065EVM 4.1.1 J10 VIN This header is the positive connection to the input power supply. The power supply must be connected between J10 and J12 (GND).
www.ti.com Connector and Test Point Descriptions 4.1.9 J16 VOUT (SMA) This SMA connector is connected to the output voltage of the TPS62065. It can be used to easily analyze the noise spectrum of the output voltage with a spectrum analyzer. By default, J16 is not assembled on the EVM.
J12 J13 J11 J14 J10 J15 JP10 ON EN OFF VIN GND VOUT GND S+ + S+ S - - S - TPS62065/67EVM-347 DC PowerSupply Load Oscilloscope Test Configuration www.ti.com 4.2.8 JP20 EN This jumper enables/disables the TPS62067 device on the EVM. Shorting jumper JP20 between the center pin and On turns on the unit.
www.ti.com Test Configuration 5.2 Testing Procedure Follow these procedures when configuring the EVM for testing. CAUTION Many of the components on the TPS62065/67EVM-347 are susceptible to damage by electrostatic discharge (ESD).
100 95 90 85 80 75 70 65 60 55 50 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 I (A) OUT Efficiency(%) V =3.0V IN V =3.3V V =3.6V V =4.2V V =5.0V IN IN IN IN L=1.0 H(LQH441R0) C =10 F(0603size) m m OUT V =1.
2V/div 2V/div 2V/div 1A/div Time(100 s/div) m V =4.2V V =3.3V IN OUT Load=2R2 PGPull-upResistor=10k W TPS62067Startup Time(1ms/div) 5V/div 2V/div 2V/div V =4.2V V =3.3V Load=NoLoad PGPull-upResistor=10k W IN OUT TPS62067Shutdown www.
Time(4 s/div) m V : 50mV/div OUT SW: 2V/div I : 200mA/div COIL V =3.6V V =1.8V IN OUT L=1.2 H C =10 F m m OUT I =20mA MODE=GND OUT TYPICALOUTPUTVOL T.
www.ti.com TPS62065/67EVM Test Data 6.5 Control Loop Bode Diagrams: TPS62065 Figure 10 and Figure 11 illustrate typical TPS62065 gain and phase performance versus frequency at VIN = 3.6 V and 5.0 V, respectively, using the TPS62025EVM. Conditions: VIN = 3.
TPS62065/67EVM-347 Assembly Drawings and Layout www.ti.com 7 TPS62065/67EVM-347 Assembly Drawings and Layout Figure 12 through Figure 16 show the design of the TPS62065/67EVM-347 printed circuit boards. This EVM has been designed using a four-layer, 1-ounce copper-clad PCB (3.
38.10mm (1.50inch) 38.10mm (1.50inch) 45.72mm (1.80inch) www.ti.com TPS62065/67EVM-347 Assembly Drawings and Layout Figure 12. TPS62065/67EVM Component Placement (Top View) 13 SLVU36.
TPS62065/67EVM-347 Assembly Drawings and Layout www.ti.com Figure 13. TPS62065/67EVM Top-Side Copper (Top View) 14 TPS62065/67EVM SLVU364 – March 2010 Submit Documentation Feedback Copyright © 2010.
www.ti.com TPS62065/67EVM-347 Assembly Drawings and Layout Figure 14. TPS62065/67EVM Internal Layer 2 (X-Ray View, from Top) 15 SLVU364 – March 2010 TPS62065/67EVM Submit Documentation Feedback Copy.
TPS62065/67EVM-347 Assembly Drawings and Layout www.ti.com Figure 15. TPS62065/67EVM Internal Layer 1 (X-Ray View, from Top) 16 TPS62065/67EVM SLVU364 – March 2010 Submit Documentation Feedback Copy.
www.ti.com TPS62065/67EVM-347 Assembly Drawings and Layout Figure 16. TPS62065/67EVM Bottom-Side Copper (Bottom View) 17 SLVU364 – March 2010 TPS62065/67EVM Submit Documentation Feedback Copyright .
Bill of Materials www.ti.com 8 Bill of Materials Table 2 lists the bill of materials for the TPS62065/67EVM. Table 2. TPS62065/67EVM Bill of Materials (1) (2) (3) (4) Count RefDes Value Description Si.
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.
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.
An important point after buying a device Texas Instruments TPS62065 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Texas Instruments TPS62065 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Texas Instruments TPS62065 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Texas Instruments TPS62065 you will learn all the available features of the product, as well as information on its operation. The information that you get Texas Instruments TPS62065 will certainly help you make a decision on the purchase.
If you already are a holder of Texas Instruments TPS62065, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Texas Instruments TPS62065.
However, one of the most important roles played by the user manual is to help in solving problems with Texas Instruments TPS62065. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Texas Instruments TPS62065 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
