Manuale d’uso / di manutenzione del prodotto TPS62065 del fabbricante 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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Texas Instruments TPS62065 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Texas Instruments TPS62065 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Texas Instruments TPS62065 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Texas Instruments TPS62065 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Texas Instruments TPS62065, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Texas Instruments TPS62065.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Texas Instruments TPS62065. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Texas Instruments TPS62065 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
