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Category: Sensing Reference Designs

48V 3-Phase Inverter with Shunt-based In-line Motor Phase Current Sensing Reference Design

The TIDA-00913 reference design realizes a 48V/10A 3-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives. One of the largest challenges with in-line shunt-based phase current sensing is the high common-mode voltage transients during PWM switching. The INA240 bi-directional current-sense amplifier overcomes this…
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48V/10A High Frequency PWM 3-Phase GaN Inverter Reference Design for High-Speed Drives

Low voltage: high-speed drives and/or low inductance brushless motors require higher inverter switching frequencies in the range of 40 kHz to 100 kHz to minimize losses and torque ripple in the motor. The TIDA-00909 reference design achieves that by using a 3-phase inverter with three 80V/10A half-bridge GaN power modules LMG5200 and uses shunt based phase current sensing. Gallium nitride (GaN)…
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50 mA-20 A: Single-Supply: Low-Side or High-Side Current Sensing Solution

This TI Reference Design implements a low-side or high-side wide dynamic range current sensing solution.  Wide dynamic range is achieved by a unique gain switching method.  Switching gain in hardware allows a faster response time than what can typically be achieved with other methods.  The implementation utilizes the INA225: high-speed: multiple gain current shunt monitor along with the INA300…
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75V/10A Protected Full-Bridge Power Stage Reference Design for Bipolar Stepper Drives

Stepper drives are used in many applications operating typically from 12VDC to 48VDC. TI offers a rich family of stepper motor driver solutions with industry standard step/direction and parallel control interfaces. For applications which require higher torque and power: often voltages above 48VDC: up to 100VDC are used. The TIDA-00210 provides a solution for such stepper drives. The TIDA-00210…
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75V/10A Protected Full-Bridge Power Stage Reference Design for Brushed DC Drives

Low voltage brushed DC drives are used in many applications. TI offers a rich family of brushed DC motor driver solutions with flexible control interface options for one or more brushed DC motors up to 60V.  For applications which require higher torque and power: often voltages above 60VDC are used. The TIDA-00365 protected full-bridge operates at nominal 75VDC input and 10A output current and…
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8-ch Isolated High Voltage Analog Input Module Reference Design

The TIDA-00764 reference design is a high voltage analog input module with eight channels. Each channel can be used for both: voltage and current measurement. The TI Design uses the 16-bit analog-to-digital converter (ADC) ADS8681 that can handle input voltage of up to ±12.288V. This make any preprocessing of standard input voltages in the industrial space unnecessary. In addition: four channels…
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Ambient Light Adaptive LED Driver

The ambient light adaptive LED driver automatically adjusts display brightness for changing ambient light conditions: providing a more viewable display with better contrast. The design drives five series connected LEDs from an input voltage of 4.5V to 12V. The LED current is nominally 100mA and the output voltage is 15 to 20V.The heart of the design is National’s PowerWise LM3423 LED driver…
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Automotive 77GHz Radar Module Reference Design with Object Data Output

The TIDA-01570 reference design is a complete solution for a 76 to 81 GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar AFE: processors and CAN-FD transceiver. After processing: object data is provided over the included  N-FD phy.
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Automotive Auto-Dimming Mirror Reference Design for Electrochromic Mirrors

Modern vehicles utilize auto-dimming mirrors to prevent glare and visibility loss for the driver. This reference design utilizes modern human-eye-response ambient light sensors and a high-current amplifier stage to drive a capacitive electrochromic mirror load.
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Automotive Capacitive Kick-to-Open Reference Design

This reference design uses capacitive sensing to detect a kicking motion indicating the user's desire to activate a power lift-gate: power trunk: or power sliding door on an automobile.  Capacitive sensing allows flexible sensor placement and a large kick-sensitive zone. The high-resolution and low power dissipation make this design applicable to automotive hands-free closure systems where…
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Automotive Capacitive Pressure Sensor Interface

This TIDA-00149 reference design utilizes a fully integrated SOC (System on a Chip) as an interface device for piezoresistive: strain gauge and capacitive sense elements. The device incorporates the analog front end that directly connects to the sense element and has voltage regulators and oscillator. The device also includes sigma-delta analog-to-digital converter: 2 DAC outputs: 8051 WARP core…
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Automotive Capacitive Pressure Sensor Reference Design

The TIDA-00985 reference design provides a simple: robust: and accurate sensor signal conditioning solution using the PGA400-Q1 for capacitive type pressure sensors. The protection strategies implemented in this design protect the pressure sensor against wiring harness faults: EMI: and automotive electrical transients. Additionally: this design guide systematically explains the theory: operation:…
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Automotive Hall Sensor Rotary Encoder

This is an incremental rotary encoder that uses contactless magnetic sensing to detect rotational speed and direction.  The two Hall Effect sensors measure the 66-pole ring magnet and output two signals in quadrature.  This automotive-qualified solution is a low-cost and far more reliable alternative to conventional mechanical contact-based encoders: as it uses solid-state sensing that is immune…
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Automotive Multiple Channel Temperature Sensing for LED Headlight Reference Design

The TIDA-01381 TI Design details a solution on how to drive a string of matrix LED headlights: measure the temperature of the LEDs: and implement support for thermal foldback: which reduces the current in the LEDs as the LED temperature rises to prevent damage to the LEDs. The design uses TI temperature sensing solutions instead of negative temperature coefficient (NTC) thermistors in order to…
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Automotive Resistive Bridge Pressure Sensor Reference Design

The TIDA-00793 reference design provides a simple: robust: and accurate sensor signal conditioning solution using the PGA400-Q1 for resistive bridge type pressure sensors. The protection strategies implemented in this design protect the pressure sensor against wiring harness faults: EMI: and automotive electrical transients. Theory: operation: and challenges involved in the design are…
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Automotive Resistive Pressure Sensor Interface Reference Design

This TIDA-00150 Design provides reference documentation on the PGA400-Q1 which will allow customers to quickly evaluate the automotive qualified PGA400-Q1 System on Chip (SoC) as an interface for their automotive resistive pressure sensor applications. The PGA400-Q1 has a built-in configurable Analog Front-End (AFE) with diagnostics: Sigma-Delta ADC: DACs: SPI: I2C: and a One-Wire Interface (OWI).…
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Automotive Resolver-to-Digital Converter Reference Design for Safety Application

TIDA-00796 reference design is a complete resolver solution based on system-on-chip (SoC) PGA411-Q1 sensor interface. Typical application for the design is in electric vehicle (EV) and hybrid electric vehicle (HEV) powertrain systems. The PGA411-Q1 based design solves excitation amplifier: boost converter: diagnostics: signal conditioning and reduces the PCB area. This altogether will reduce…
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Automotive TFT LCD Display Solution

This reference design implements a video over LVDS solution for automotive infotainment applications.It highlights the support of multi-touch with haptic feedback: LCD backlight control: and ambient light sensing: without the introduction of dedicated support lines back to the host processor. This design is implemented using two boards. The main electronics board: SAT0059 is where the…
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Automotive Ultrasonic Fluid Level/Quality Measurement Reference Design

TI reference design TIDA-00322 is an automotive liquid level and fluid identification measurement system. It is based on the dual-channel TDC1000-Q1 ultrasonic AFE and the real-time microcontroller C2000. This reference design can also be used with the TDC1000 for industrial/consumer applications. This solution supports 4.5-40V system capabilities with reverse battery protection. For prototyping…
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Automotive Ultrasonic Sensor Interface IC for Park Assist or Blind Spot Detection Systems

The TIDA-00151 reference design contains a PGA450-Q1 which is a system on Chip (SOC) sensor interface IC for automotive Ultrasonic sensors. It provides all signal conditioning and processing for the transducer echo signals and for calculating the distance between the transducer and objects. MCU and program memory allow for full configurability for the specific end application.Application examples…
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