Search results
Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)
Texas Instruments
Cost-Effective Transformerless Offline Supply for Light Load Applications (Rev. A)
Texas Instruments
This design idea provides a simple non-isolated AC/DC power supply for low power applications. Thedesign uses a capacitive-dropper front-end combined with a LM46000 SIMPLE SWITCHER® buckregulator from Texas Instruments. The circuit provides 3.3 V at a minimum of 100 mA from a line supply of90 VAC to 265 VAC. Theory of operation as well as design equations and performance results are given.
LTC3639EMSE Demo Board | Sync Buck, 4V ≤ VIN ≤ 150V, VOUT = 1.8V/3.3V/5V/Adj @ 100mA
Analog Devices Inc.
LTC3639EMSE Demo Board | Sync Buck, 4V ≤ VIN ≤ 150V, VOUT = 1.8V/3.3V/5V/Adj @ 100mA
Analog Devices Inc.
Demonstration circuit 1901A is a 150V input, 100mA output DC/DC power supply featuring the LTC3639. The IC operates in a high efficiency Burst Mode® operation and includes internal high and low side power MOSFETs. The board will accept an input voltage between 4V and 150V, and provide jumper selected output voltages of 1.8V, 3.3V, 5V and an option for additional voltages. The IC includes internal soft-start and a provision for increasing soft-start time.
ADAS Sensor Interconnect Reference Design Board for Remote Camera and Radar Modules
Texas Instruments
ADAS Sensor Interconnect Reference Design Board for Remote Camera and Radar Modules
Texas Instruments
The ADAS Sensor Interconnect Board is intended for applications where remote sensors like cameras: LIDAR or radar modules need to be connected to a central processing ECU. The board supports up to 3 coaxial and 1 LVDS twisted pair data inputs as well as 3 FMC cable and 1 board to board connector as data outputs to a processing ECU. Camera or other sensor modules connected through the coax connector (SMB standard) are powered directly via the coaxial cable (power over coax) from the interconnect board. Because of an independent complete power solution for all ICs and power over coax on board: a single car battery or similar wide voltage supply can be directly connected to the power connector on the ADAS Sensor Interconnect Board. An on-board uC and LIN interface allow control and configuration of the Interconnect board as well as plug-and-play operation.
ADL5902-EVALZ
Analog Devices Inc.
ADL5902-EVALZ
Analog Devices Inc.
The ADL5902 is a true rms responding power detector that hasa 65 dB measurement range when driven with a single-ended 50 ? source. This feature makes the ADL5902 frequencyversatile by eliminating the need for a balun or any other form of external input tuning for operation up to 9 GHz.The ADL5902 provides a solution in a variety of high frequencysystems requiring an accurate measurement of signal power. Requiring only a single supply of 5 V and a few capacitors, it is easy to use and capable of being driven single-ended or with abalun for differential input drive. The ADL5902 can operate from 50 MHz to 9 GHz and can accept inputs from ?62 dBm to at least +3 dBm with large crest factors, such as GSM, CDMA,W-CDMA, TD-SCDMA, WiMAX, and LTE modulated signals.The ADL5902 can determine the true power of a high frequency signal having a complex low frequency modulation envelope or can be used as a simple low frequency rmsvoltmeter. Used as a power measurement device, VOUT isconnected to VSET. The output is then proportional to thelogarithm of the rms value of the input. In other words, thereading is presented directly in decibels and is scaled 1.06 V per decade, or 53 mV/dB; other slopes are easily arranged. In controller mode, the voltage applied to VSET determines thepower level required at the input to null the deviation from the set point. The output buffer can provide high load currents.The ADL5902 has 1.5 mW power consumption when powereddown by a logic high applied to the PWDN pin. It powers up within approximately 5 ?s to its nominal operating current of 73 mA at 25?C. The ADL5902 is supplied in a 4 mm ? 4 mm,16-lead LFCSP for operation over the wide temperature rangeof ?40?C to +125?C.The ADL5902 is also pin-compatible with the AD8363, 50 dBdynamic range TruPwr? detector. This feature allows the designer to create one circuit layout for projects requiring different dynamic ranges. A fully populated RoHS-compliant evaluation board is available.Applications Power amplifier linearization/control loops Transmitter power controls Transmitter signal strength indication (TSSI) RF instrumentation
Implementing Serial Rapid I/O PCB layout on a TMS320C6455 Hardware Design (Rev. A)
Texas Instruments
Implementing Serial Rapid I/O PCB layout on a TMS320C6455 Hardware Design (Rev. A)
Texas Instruments
This application report contains implementation instructions for the Serial Rapid I/O (SRIO) interface on the TMS320C6455 DSP device. The approach to specifying interface timing and physical requirements for the SRIO interface is quite different than previous approaches for other interfaces.
Serial Rapid I/O is an industry-standard high-speed switched-packet interconnect. Physical layer data t
Low Voltage Feedback in PWM Applications
Texas Instruments
Low Voltage Feedback in PWM Applications
Texas Instruments
Normally the output voltage of a switching power supply is higher than the error amplifier reference and so a simple resistive divider between the output voltage and ground at the non-inverting input of the PWM error amplifier is all that is required to set the regulation voltage. However when the output voltage is less than the error amplifier reference voltage the feedback voltage must be div
Automotive Power Supply
Texas Instruments
Automotive Power Supply
Texas Instruments
PMP7031 is an automotive dual buck supply with a boost on the input: which enables working down to 3V. It has a low quiesecent current during shutdown and supports various functions needed in an automotive application.
Residential Lighting Gateway for IoT Applications Reference Design
Texas Instruments
Residential Lighting Gateway for IoT Applications Reference Design
Texas Instruments
This design provides a reference ZigBee® gateway for IoT lighting applications. Feature-rich: Linux-based Network & GUI applications powered by Sitara™ AM335x processor can control and monitor ZigBee lighting nodes using the SimpleLink™ ZigBee CC2531 wireless MCU. This design includes example applications for local and remote control of ZigBee nodes: including Android (phones/tablets/set top boxes): Java-script for cloud connectivity agents and C-clients.
Set Up and Use TSC Timings
Texas Instruments
Set Up and Use TSC Timings
Texas Instruments
This application report helps users to understand set up and use the programming timings in the register-based touch screen controller (TSC) devices. It displays the timings functions and discusses the effect on the system interface traffic and on the system power consumption.