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Application Notes

Ground Shifting in Capacitive Sensing Applications

Texas Instruments

Proximity sensing is a key feature in many smart applications. This feature is used for system wake-up, collision avoidance, and gesture recognition. Capacitive sensing solutions are typically implemented to achieve simple yet robust proximity detection. This application note reviews important system considerations when designing with Texas Instruments' resonator-based capacitive sensing chips, the FDC2x1y family. Guidelines for sensor system design and grounding techniques are provided through mathematical modeling and qualitative assessment of external parasitic capacitance.

Accuracy-Enhanced Ramp-Generation Design for D-CAP3 Modulation (Rev. A)

Texas Instruments
D-CAP and D-CAP2 control schemes have been widely used in TI Switched-Mode DC-DC converters due to their fast transient response and no off-chip compensation. Offset generated by current sense ramp ad

1-Wire Enumeration (Rev. B)

Texas Instruments
application report describes the 1-Wire communication protocol, available TivaWare™ for C Series APIs for the 1-Wire module in Tiva™ C Series microcontrollers and an example enumeration al

How to Calculate TPS92630-Q1 Maximum Output Current for Automotive Exterior Ligh

Texas Instruments

This application report provides the method of calculating the maximum output current of the TPS92630-Q1 device in exterior-lighting automotive applications. The junction-to-ambient thermal resistance (RθJA) of the TPS92630-Q1 device is the key parameter when calculating the maximum output current of the TPS92630-Q1 device. This application report provides a method about how to measure the RθJA of TPS92630-Q1 reference boards. The reference boards are fabricated with different copper thickness. A comparison table of both measured and simulated RθJA of different copper thickness is given in the report for correlation.

Debugging Tools and Techniques With IPC3.x

Texas Instruments
There are several useful tools and techniques that enable you to debug issues encountered when using software that leverages IPC3.x. With some guidance on the tools and techniques, you can confidently

bq769x0 boot switch alternatives

Texas Instruments
The simplified system schematic in the bq769x0 data sheet shows a boot switch to wake the bq769x0 battery monitor. While this is a simple solution, in some cases this switch will not meet the needs of

Understanding Undervoltage Lockout in Display Power Devices

Texas Instruments
Understanding Undervoltage Lockout in Display Power Devices TPS65150

Migrating from TMS570LS12x/11x to TMS570LS09x/07x MCUs

Texas Instruments
Compatibility Considerations: Migrating From TMS570LS12x/11x to TMS570LS09x/07x Safety Microcontrollers

SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC

Texas Instruments
SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC TPS54020,TPS544C20/B20,TPS546C20,TPS53513/515/915,TPS548A20/9A20,TPS53318/19/53/55

Quiescent Current vs Shutdown Current for Load Switch Power Consumption

Texas Instruments
Quiescent Current vs Shutdown Current for Load Switch Power Consumption General Load Switch

PGA411-Q1 PCB Design Guidelines

Texas Instruments
The PGA411-Q1 device is a resolver-to-digital converter, with an integrated exciter-amplifier, boost-converter power supply, that is capable of both exciting and reading the sine and cosine output fro

Implementing JESD204B SYSREF and Achieving Deterministic Latency with ADC32RF45

Texas Instruments
ADC32RF45 Implementing JESD204B SYSREF and achieving deterministic latency with ADC32RF45 ADC32RF45_SBAA221 HPA/HSP/HS_DC/App_Reports

Gstreamer Migration Guidelines

Texas Instruments
Gstreamer is a widely used multimedia framework. It is supported by GLSDK. New versions of gstreamer come out every month with a lot of bug fixes. The examples and steps are based on Gst 0.10 to Gst 1

Single Versus Three Hall Sensor Configuration

Texas Instruments
Single Versus Three Hall Sensor Configuration DRV10970

Built-In System Protection for Industrial Drives

Texas Instruments

Eight windowed comparators are integrated into the Delfino F2837xD MCU architecture, providing “trip points,” and operate independently from the CPU so there is no additional CPU loading. The comparators are also fast acting (50 ns reaction to trip!) and CPU independent to minimize latency with trip signals so the system can react quickly to any abnormal events or over/under limit conditions. The comparator trip events can be configured to help provide a full shut down action in the case of a catastrophic event, making the system more resilient in industrial drive and servo systems.

The on-chip X-BARs provide a flexible means for interconnecting multiple inputs, outputs, and internal resources in various configurations. The F2837xD contains three X-BARs: the Input X-BAR, the Output XBAR, and the ePWM X-BAR. These resource are helpful in many ways to the system developer but are particularly helpful in routing the many potential on-chip and off-chip sources to the PWM Trip Zones, thus, providing the designer with many flexible approaches for protection without requiring external logic and creating better utilization of the microcontrollers I/O.

Optimizing the TPS62097 Output Filter

Texas Instruments
Optimizing the TPS62097 Output Filter TPS62097

Power Estimation and Pwr Consumption Sum for TMS320C5504/05/14/15/32/33/34/35/45 (Rev. A)

Texas Instruments
This application report assists in estimating the power consumption for the TMS320C5515, C5504, C5505, C5514, C5532, C5533, C5534, C5535 and C5545 devices (DSPs), using a power estimation spreadsheet.

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