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Category: Fitness Reference Designs

±50A Current Sensor using Closed-Loop Compensated Hall Element Reference Design

This TI Precision Verified Design provides a complete closed loop Hall based current transducer signal conditioning solution.  The circuit features the DRV411 and is designed to accurately measure dc: ac and pulsed currents to +/-50 A with galvanic isolation between the primary and secondary circuits.  The DRV411 provides Hall excitation: a compensation coil driver and a precision difference…
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0°C – 100°C: Hardware-Compensated Ratiometric 3-Wire RTD System Reference Design

This TI Precision Verified Design implements a hardware compensated 3-wire RTD acquisition system that accurately measures temperature from  0 °C - 100 °C.  The voltage input and reference voltage are placed in a ratiometric configuration in order to reduce the errors from noise and drift and improve overall system accuracy. The ADS1247 simplifies the front-end solution through integration of…
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1 to 2s I2C Li-Ion Battery Pack Manager Reference Design

The Texas Instruments bq28z610 device is a Battery Pack Manager that integrates gas gauging: and protection for complete autonomous operation of 1-series to 2-series cell Li-Ion and Li-Polymer battery packs. The architecture enables communication between the fuel gauging processor and an internal battery charger controller through I2C broadcast commands. This reference design eases the design…
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1.6MHz Synchronous Switch-Mode Li-Ion/Li-Polymer Stand-Alone Battery Charger Reference Design

This reference design is highly integrated stand-alone Li-ion and Li-polymer switch-mode battery charge solution with two integrated N-channel power MOSFETs and a power path selector gate driver. It offers a constant-frequency synchronous PWM controller with high accuracy regulation of input current: charge current and voltage. It also provides battery detection: pre-conditioning: charge…
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10/100 Mbps Industrial Ethernet Brick with IEEE 1588 Precision Time Protocol (PTP) Transceiver

The TIDA-00496 TI Design is a compact brick for demonstrating capabilities of Precision PHYTERTM. As more systems in the power grid are using time information for real time analysis: timing becomes critical. This design achieves time synchronization with nanosecond accuracy using IEEE 1588v2 Precision Time Protocol (PTP).  It can be configured for 10/100 Mbps copper interface or 100 Mbps fiber…
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16-button Inductive Keypad Reference Design Using the LDC1314 Inductance-to-Digital Converter

The LDC1314's unique inductive sensing capability is used to implement a contactless: 16 button: multi-function keypad. It uses standard PCB technology and easily manufactured components to implement a low cost solution.This reference design uses the LDC1314.  This reference design can also be used with LDC1312: LDC1612 and LDC1614.
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2.4 & 5 GHz Dual Band Wi-Fi + Bluetooth Antenna Design on WiLink™ 1837 Module

The WiLink 1837 module antenna design is a reference design that combines the functionalities of the WiLink 8 module with a built-in antenna on a single board: implementing the module in the way it's been certified. Through this: customers are able to evaluate the performance of the module through embedded applications such as home automation and the Internet of Things that make use of both…
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2.4 GHz WiFi + Bluetooth Certified Antenna Design on WiLink™ 1835 Module

The WiLink 1835 Module Antenna Design is a reference design that combines the functionalities of the WiLink 8 module with a built-in antenna on a single board: implementing the module in the way it's been certified. Through this: customers are able to evaluate the performance of the module through embedded applications such as home automation and the Internet of Things that make use of both Wi-Fi…
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24V Stepper Motor Controller with Integrated Current Sense Reference Design

The TIDA-00867 reference design showcases the benefits of integrated current sensing for stepper motors. Integraded current sensing is available on the DRV8885. The DRV8885EVM to demonstrate this feature.
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24VDC 10A eFuse and Protection Circuit for Programmable Logic Controllers (PLC)

This sub system design shows an IC based implementation of  over voltage: over current: reverse current:  reverse polarity and miss wire protection which is more accurate: lower power and faster compared to fuses: PTCs and diodes. Programmable Logic Controller (PLC) I/O modules connected to a field power supply  benefit from protection on the 24V field input connectors as power supply faults or…
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4.4 V to 30 V: 15 A: High Performance Brushless DC Drone Propeller Controller Reference Design

The TIDA-00643 reference design is a 4.4 to 30 V brushless DC motor controller for high power drones: quadcopter: propeller: fan: and pump applications. It uses the Texas Instrument’s DRV8305 brushless DC motor gate driver: CSD17573Q5B 30V NexFET power MOSFETs: TPD4E05U06 TVS protection IC: C2000 motor control MCU: and LMR16006 3.3 V buck converter. It utilizes InstaSPINTM-FOC for sensorless…
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400-W Continuous: Scalable: ±2.5- to ±150-V: Programmable Ultrasound Power Supply Reference Design

The TIDA-01352 enables modular and efficient power scaling capability by providing a solution for digitally programmable power supply for powering ultrasound transmit circuit. The design uses push-pull topology to generate high-voltage (HV) and low- (LV) or MID- voltage power supplies. The HV rails are programmable from ±50V to ±150V: whereas the LV or MID rails are programmable from ±2.5V to…
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50mA Wireless Charger with 19mm Coil BoosterPack Reference Design

The TIDA-00881 reference design is a booster pack that provides a wireless charger and an entire battery managment solution to power any low power TI Launchpad. This design is a  highly integrated power management solution that is well-suited for ultra-low power applications using an off the shelf coil. The primary method of storage is an LIR2032 Lithium-Ion rechargable coin cell. There is a…
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64-Button Capacitive Touch Panel With TI Microcontroller With CapTIvate Technology Reference Design

TIDM-CAPTIVATE-64-BUTTON is a TI Designs Reference Design for an ultra-low-power touch panel with 64-buttons that can be controlled by a single MSP microcontroller (MCU) with CapTIvate technology. The design uses mutual capacitance technology to enable all 64-buttons to be tightly packed and controlled with only 16 MCU pins. The touch panel is designed to easily interface with the CAPTIVATE-FR2633…
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Active Volume Control for Professional Audio

This TI Verified Design implements a split-supply: high-performance volume control which attenuates a professional line-level audio signal with minimal distortion and noise. An input buffer preserves the behavior of the system independent of the audio input source impedance. A radio frequency (RF) filter on the circuit front end removes noise from outside the audio band: while a bidirectional…
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Always-on Low-power Gas Sensing with 10+ Year Coin Cell Battery Life Reference Design

The TIDA-00756 TI Design uses nano-power operational amplifiers: comparators: system timers: temperature sensors: and the SimpleLink ultra-low power 2.4-GHz wireless microcontroller (MCU) platform to demonstrate an ultra-low power carbon monoxide detector implementation. These technologies lead to an extremely long battery life: over 10 years with a standard CR2032 lithium ion coin cell battery:…
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Analog Front End (AFE) for Merging Units and Multi-Function Protection Relays Reference Design

This solution addresses the front end needs of Merging Units where multiple measurement channels for current and voltage are required. This implementation is modular: allowing easy expansion of channels while at the same time keeping the connectivity to the processor minimal by using the SPI daisy chain feature in the TI's SAR ADC. Additionally: this solution is compact because the AFE not only…
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Automotive Precision eFuse Reference Design

Fuses are used in many products to avoid current surges and the damage that overcurrent may cause. The traditional fuses used in the Automotive space are low in accuracy and response time. The TIDA-00795 Automotive Precision eFuse reference design is a replacement to the traditional fuse offering higher accuracy and features not found in traditional fuses.This eFuse reference design can be used as…
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Automotive SEPIC Backlight Driver Reference Design

The TIDA-00503 refrence design is a SEPIC mode LED driver design for automotive backlight applications with 2 or 3 LEDs in series. SEPIC enables VIN both above and below VOUT. The LED driver operates at a switching frequency of 2.2MHz for a small overall footprint and all components are limited to
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Backlight and Smart Lighting Control by Ambient Light and Proximity Sensor Reference Design

This system conserves power and extends backlight life by dynamically adjusting the backlight brightness relative to the environment's ambient light.  A capacitive proximity sensor wakes up the system when a user is close to save even more power. Watch related videos about Sensing NOW.
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