This video by Robert Kollman, TI senior applications engineer, discusses how to use a two section filter for a low noise power supply.
Tag Archives: Texas Instruments
How to measure stability when testing power supplies
Here is a video from Texas Instruments describing how to measure stability when testing power supplies.
App Note: How to test power supplies
Here is a video from Texas Instruments describing how to test DC-DC power supplies. Measurement of ripple and transient noise of switching power supplies is described in detail.
App note: Benefits and pitfalls of aluminum electrolytic capacitors
A video tutorial on the benefits and pitfalls of using aluminum electrolytic capacitors. Learn how these capacitors degrade, and how their life cycle is proportional to the stresses you put them through.
App note: Regulator output voltage accuracy
Texas Instruments goes over regulator output-voltage accuracy, warning that feedback resistor tolerances have a high impact on the output accuracy and should be chosen with care.
App Note: Capacitors and their parasitic components
As with all electronics components capacitors can never be ideal, there are always parasitic components that have to be considered as well. With capacitors the most prominent parasitics are Equivalent series resistance (ESR), and Equivalent series inductance (ESl). The video recorded by Texas Instruments describes 3 most common capacitor technologies, (ceramic, aluminum electrolytic, and aluminum […]
App Note: Nuts and bolts of delta-sigma analog to digital converters
Here’s is a video from Texas Instruments describing the inner workings of delta-sigma analog to digital converters. The DS ADC is broken down into it’s basic parts. The delta-sigma modulator and digital decimating filter are then discussed. Delta-sigma converters are ideal for converting signals over a wide range of frequencies from DC to several megahertz […]
App note: Bootloading 101
Texas Instruments describes bootloaders and what they are all about. A bootloader is a piece of code that allows new firmware to be loaded into a microcontroller without a dedicated programmer. All of our projects use a bootloader so you can upgrade over a USB or serial connection. For PIC micros we usually use two […]
App note: Motor pre-drivers vs integrated drivers
Here is a video from Texas Instruments describing the differences in motor pre-drivers vs integrated drivers. Pre-drivers have all the control circuitry but the FETs are external, while in integrated drivers everything is on one IC. Because pre-drivers use external FETs, you can select the ones with much lower RDS-on resistance. This will give you […]
FRAM MCUs for Dummies book giveaway at Mouser
Mouser is giving away the Texas Instruments FRAM MCUs for Dummies book. Hand over your personal details to Mouser if you’re willing, and they’ll send you the book. Could be fun. Via the forum. Thanks Chuckt!
Texas Instruments power management reference design library
Texas instruments released the Power Management reference design library. It’s filled with schematics, design notes, gerber files, and any technical document you might need to get over 300 reference designs up and running. Texas Instruments PowerLab™ Power Management Reference Design Library contains hundreds of reference designs for any application. Each reference design contains supporting technical […]
App note: Understanding and interpreting logic IC datasheets
This app note from Texas Instruments focuses on understanding and interpreting datasheets for logic ICs. To assist component and system-design engineers in selecting Texas Instruments (TI) standard-logic products, this application report is a synopsis of the information available from a typical TI data sheet. Information includes a brief description of terms, definitions, and testing procedures […]
App note: Ball grid array explained
Here is Texas Instrument’s application note on Ball Grid Array IC packages. It provides general information about BGAs, and the many versions of the same. Leaders in the consumer electronics industry will be determined by their ability to deliver increasingly miniaturized products at lower costs. The Ball Grid Array (BGA) package achieves these objectives by […]
App note: Improving USB system reliability with transient suppressors
Adding transient suppressors to USB devices [PDF!] can help prevent damage from static discharge. This is important because USB devices are handled without protection, carried in pockets, tossed in bags, etc. Because frequent human interaction with the USB system occurs as a result of its attractive hot-plugging ability, there is the possibility for large ESD […]
App note: Multiple time-bases from a single timer module in MPS430 devices
Here is an app note from Texas Instruments describing how to implement multiple time-base outputs from a single timer module on a MSP430 microcontroller. The timer modules on MSP430™ ultra-low power microcontrollers often base several different outputs off of a single time base – a single timer period. This is especially true for the typical […]
App note: MSP430 based USB Li-Ion battery charger with fuel gauge
An MSP430-based USB Li-Ion battery charger with a fuel gauge: The example cases discussed in this application report provide a basic understanding of what needs to be done at production, as well as on the application level, to achieve the aforementioned goals. The associated software provides library functions to interface and communicate with the bq27410 […]
App note: Precision current limiting with the LMP8646
Here is an app note from Texas Instruments describing how to use their LMP8646 ‘shunt’ current monitor as a current limiter on linear, and switching power supplies. The LMP8646 is a precision current limiter used to improve the current limit accuracy of any switching or linear regulator with an available feedback node. Many regulators might […]
App note: Interfacing a 3volt microcontroller to 5volt peripherals
It can be a challenge to interface 5volt stuff with modern 3.3volt microcontrollers like an ARM or MSP430. This app note covers several circuits for voltage translation on input, output, and bidirectional pins. The interfacing of the 3-V MSP430x1xx and MSP430x4xx microcontroller families to circuits with a supply of 5 V or higher is shown. […]
App note: Voltage translation circuits
Here is an app note from Texas Instruments describing how to implement basic voltage translation circuits in your design. Today’s complex electronic systems involve a multitude of power planes. In order for these mixed-mode systems to operate properly, some type of voltage translation or clamping is necessary. This allows the different input/outputs (I/O) to communicate […]
App note: USB keyboard using MSP430 microcontrollers
This reference design from Texas Instruments shows how to build a USB keyboard design using a MSP430 microcontroller. The article contains the full design: the keyboard matrix, schematic, and the firmware needed to get it going. This application report describes the implementation of a USB keyboard with the following characteristics: • 101 keys, 2 LEDs: […]