Shelf-Life Evaluation of Nickel/Palladium Lead Finish for Integrated Circuits
Texas InstrumentsThe integrated-circuit (IC) industry is converting to nickel/palladium (Ni/Pd)-finished leadframes for assembly of ICs. To dateTexas Instruments (TI) has over 20 billion Ni/Pd ICs in the field.Users of IC components need to know the maximum length of time that components can be stored before being soldered. The goal of this study was to predict shelf life of Ni/Pd-finished components by expos
SPI Bootloader for Hercules TMS570LS31X MCU
Texas InstrumentsThis application report describes how to communicate with the Hercules™ serial peripheral interface (SPI) bootloader. The SPI bootloader is a small piece of code that can be programmed at the beginning of Flash to act as an application loader as well as an update mechanism for applications running on a Hercules Cortex™-R4 based TMS570LS31x microcontroller.
Replacing the CLC014 Adaptive Cable Equalizer with the LMH0074 (Rev. A)
Texas InstrumentsThis application report discusses the process to replace the CLC014 adaptive cable equalizer with the LMH0074 adaptive cable equalizer.
Implementing DDR2 PCB Layout on the TMS320DM643x DMSoC (Rev. A)
Texas InstrumentsThis application report contains implementation instructions for the DDR2 interface contained on the TMS320DM643x digital signal processor (DSP) device. The approach to specifying interface timing for the DDR2 interface is quite different than on previous devices.
The previous approach specified device timing in terms of data sheet specifications and simulation models. The system designer was
AN-1042 COP8 Instruction Set Performance Evaluation
Texas InstrumentsCOP8 Instruction Set Performance Evaluation
Using the ADS7800 12 Bit ADC with Unipolar Input Signals
Texas InstrumentsThe ADS7800 12 bit Sampling analog-to-digital-converter is designed to operate with bipolar inputs of ±5V or ±10V. With the addition of an external amplifier the ADS7800 can be used for 10V or 20V unipolar inputs. Four unipolar input options are shown in this Bulletin.
Using ROM Contents on TMS320C672x
Texas InstrumentsThis application report explains how to configure an application based on pure software libraries and routines and how to properly use the provided ROM contents for the TMS320C672x DSP generation of devices. Several software examples are provided explaining the process in progressive steps.
How to Meet 24V Hot Plug-In Test for Charge Front-End bq243xx
Texas InstrumentsThe maximum input voltage rating of the bq243xx family of ICs is 30 V. However some customers like to perform a 24-V hot plug-in transient test to prove its high-voltage capability and reliability from a system level. It is important for system designers to properly design the charging system with correct system-level protections. Usually a TVS (transient voltage suppression) Zener diode is used
Single-cell Battery Discharge Characteristics Using the TPS61070 Boost Converter
Texas InstrumentsThis application report presents practical single-cell battery discharge characteristics in real-world application and primarily focuses on the varying internal impedance of a battery and how that affects the battery terminal voltage.
Effect of Heavy Loads on Accuracy and Linearity of Op Amp Circuits (Rev. B)
Texas InstrumentsThis application report discusses the effect of heavy loads on the accuracy and linearity of operationalamplifier circuits.
DN-50 Simple Techniques for Isolating and Correcting Common Application Problems
Texas InstrumentsThe UC3625 brushless DC-motor control IC incorporates many useful features that greatly simplify the design of low-cost and reliable brushless DC-motor drive systems. Although the controller IC is designed for ease of circuit implementation a few precautions are necessary to insure proper operation. This design note discusses a few situations in which the IC may not operate correctly if suitable
Implementing a 4 mA to 20 mA Current Loop on TI DSPs
Texas InstrumentsUse of 4-mA to 20-mA (4-20 mA) current loops has become the standard in the process-control industry due to their increased resistance to noise compared to voltage-modulated signals. TI digital signal processors (DSPs) increasingly are becoming the standard for microcontrollers in a control application. Therefore an opportunity exists to connect the many sensors and electromechanical devices on t
ISM-Band and Short Range Device Regulatory Compliance Overview
Texas InstrumentsISM-Band and Short Range Device Regulatory Compliance Overview
DSP Solution for AC Induction Motor
Texas InstrumentsThe Motor Control industry is a strong aggressive sector. Each industry to remain competitive, must reduce costs but also has to answer to power consumption reduction and EMI radiation reduction iss
TMS320C31 Embedded Control Technical Brief
Texas InstrumentsThe Texas Instruments low-cost high-performance TMS320C31 has defineda new role for digital signal processors in embedded systems. Well-suited forgeneral-purpose use the TMS320C31 is finding widespread acceptance asan embedded controller in applications such as: Industrial automation Telecommunications Motor control Automotive Instrumentation Laser printers Scanners
Information to Provide When Reporting Issues With TI Gauges
Texas InstrumentsInformation to Provide when Reporting Issues with TI Gauges
Thermal Design Made Simple With LM43603 and LM46002
Texas InstrumentsThis Application Report will walk through the thermal design of power supplies using the LM43603 and LM46002.In the process we will cover common tips and approximations to speed up your design.
Interfacing a TMS320C2x, C2xx, or 'C5x DSP to a TLC548 8-Bit A/D Converter
Texas InstrumentsThis document describes how to interface a TMS320C2x, 'C2xx, or 'C5x DSP to a TLC548 8-bit A/D converter. A lengthy code example is provided.
