Softstart Using Constant Current Constant Voltage Approach
Texas InstrumentsIn many systems backup power is provided either by batteries or simply by a large value capacitor. Inthese applications the capacitor would only provide the current when the primary power source fails.Further these applications are usually for light load currents. During normal operation the backupcapacitors are kept charged up by a DC/DC converter. The challenge involved in an application
Low-Power Signal Conditioning For A Pressure Sensor (Rev. A)
Texas InstrumentsLow-Power Signal Conditioning for a Pressure Sensor
SM74611 (Smart Bypass Diode) as an OR-ing Device
Texas InstrumentsThis application report demonstrates the use of TI's Smart Bypass Diode- SM74611 as a high efficiency solution for use in N+1 redundant power supply arrangements. It highlights the ease of use, high
HDC1000 Texas Instruments Humidity Sensors
Texas InstrumentsThis application note will explain the basics of humidity sensing and some important design considerations. The application note begins with a brief description of humidity and how it is quantified. Next some design guides to implement good system measurement are presented. Finally different designs with HDC1000 are reviewed.
Supply Voltage Drop On Fast Current Demand
Texas InstrumentsThe simplest way to supply an electronic system with a continuous and stable voltage is to use a linear voltage regulator. This application brief provides recommendations to prevent additional voltage
Capacitive Proximity Sensing Using the FDC1004 (Rev. A)
Texas InstrumentsCapacitive proximity sensing can be implemented in a wide variety of applications with the use of TI's FDC1004 and with the flexibility of the sensor design in many system environments. Not only are there advantages of using capacitive proximity sensing compared to alternative detection methods there are also guidelines to follow to ensure maximum performance and stability with the sensing system
AN115 -- CC112x/CC1175/CC120x Operation in 274-320 MHz Frequency Band (Rev. A)
Texas InstrumentsAN115 -- CC112x/CC1175/CC120x Operation in 274-320 MHz Frequency Band
Sensorless Field Oriented Control:3-Phase Perm.Magnet Synch. Motors Using 2833x
Texas InstrumentsThis application report presents a solution to control a permanent magnet synchronous motor (PMSM)using the TMS320F2833x floating-point microcontrollers. TMS320F2833x devices are part of the family ofC2000 microcontrollers which enables the cost-effective design of intelligent controllers for three phasemotors by reducing system components and increasing efficiency. With these devices it i
Client Side Telephony (CST) Chip Flex Mode Flex Examples Description
Texas InstrumentsClient Side Telephony (CST) Chip Flex Mode Flex Examples Description Application Report
Interface Circuits for TIA/EIA-232-F (Rev. A)
Texas InstrumentsThis design note provides information concerning the designing of TIA/EIA-232-F interface circuits. The TIA/EIA-232-F standard is covered including the electrical specification maximum cable lengths and the DB9S connector. The section entitled Optimizing PC Interface Devices discusses the following topics: SN75C185 power considerations interface power-consumption calculations the SN75LP185A an
MSP430F4270 Altimeter Demo
Texas InstrumentsThis application report describes the implementation of an altimeter using a fullyintegrated MCU solution with the MSP430F42x0 family of microcontrollers. An air pressure sensor is directly interfaced
CDAC Architecture Gives ADC574 Pinout /Sampling, Low Power, New Input Ranges
Texas InstrumentsThis application note compares basic current-mode successive approximation A/Ds with CDAC-based architectures, and shows how adding a resistor divider network to the CDAC input permits the Burr-Brown
Heat Sinking- TO-3 Thermal Model
Texas InstrumentsA critical issue with all semiconductor devices is junction temperature (TJ). TJ must be kept below its maximum rated value typically 150°C. The lower the junction temperature the better. The thermal circuit shown allows temperature to be estimated with simple calculations. The temperature rise across each interface is equal to the total power dissipated in the device ti
Implementing an Ultra-Low-Power, Single-Chip Thermocouple Circuit
Texas InstrumentsImplementing an Ultra-Low-Power, Single-Chip Thermocouple Circuit With the MSP430F423
Interfacing the DAC8564 to the MSP430F449
Texas InstrumentsThis application report describes how to interface the DAC8564 digital-to-analog converter (DAC) to the MSP430F449 mixed-signal microcontroller. This document discusses how the internal reference is d
Hot Plug-In In-Rush Current Limiting Circuits for PT3100/4100/3320 DC-DC Convert (Rev. A)
Texas InstrumentsIn-rush current is the initial current that flows to the converter’s input de-coupling capacitor(s) when the host board assembly is connected to an active input power source. The magnitude of the in-rush current is high and can induce arcing, transients, and erosion of the connector. Limiting the in-rush current allows the host board assembly to be safely plugged into a live system backplane connector, such as those powered from a -48V central office power supply.
OA-29 Low-Sensitivity, Highpass Filter Design with Parasitic Compensation (Rev. B)
Texas InstrumentsThis application report covers the design of a Sallen-Key highpass biquad. This design gives low component and op amp sensitivities. It also shows how to compensate for the op amp?s bandwidth (predis
