The TPS61391 from Texas Instruments is a 700kHz pulse-width modulating (PWM) step-up converter with an 85V switch FET with an input ranging from 2.5 to 5.5V. The switching peak current is up to 1,000mA. The TPS61391 includes accurate current mirror with two gain options selectable (1:5 or 4:5).

The UCC27517A single-channel, high-speed, low-side gate driver device from Texas Instruments is capable of effectively driving MOSFET and IGBT power switches. Using a design that minimises shoot-through current, the UCC27517A is capable of sourcing and sinking high peak-current pulses into capacitive loads offering rail-to-rail drive capability and extremely small propagation delay typically 13ns.

Electrification has created a new paradigm in automotive power systems; whether the design is a hybrid electric vehicle (HEV) or fully electric vehicle (EV), there are new design challenges to address. In this technical article, I’d like to highlight some of the primary challenges in high-voltage current sensing and share additional resources to aid and simplify your design process. 

According to Texas Instruments, designing a better powertrain is the most significant way to reduce automotive emissions. Whether it’s improving the efficiency of a combustion engine or designing electric vehicles (EVs) or hybrid electric vehicles (HEVs), electrification is powering a massive evolution of the powertrain as we know it.

This reference design from Texas Instruments details a solution to drive and control two stepper motors for dynamic headlight levelling and swivelling in automotive headlight applications such as an adaptive LED driving module or a high-resolution DLP module. 

The TPS92682-Q1 from Texas Instruments is a dual-channel, peak current-mode controller with SPI communication interface. The device is programmable to operate in constant-voltage (CV) or constant-current (CC) modes. In CV mode, TPS92682-Q1 can be programmed to operate as two independent or dual-phase Boost voltage regulators. 

The TLV767 from Texas Instruments is a wide input linear voltage regulator supporting an input voltage range from 2.5 to 16V and up to one amp of load current. The output range is from 0.8 to 6.6V or up to 13.6V in the adjustable version. Additionally, the TLV767 has a one percent output accuracy that can meet the needs of low voltage microcontrollers (MCUs) and processors.

The LMR36520 regulator from Texas Instruments is an easy-to-use, synchronous, step-down DC/DC SIMPLE SWITCHER converter. With integrated high-side and low-side power MOSFETs, output current up to two amps is delivered over a wide input voltage range of 4.2V to 65V. 

The TPS2583x-Q1 from Texas Instruments is a USB Type-C and BC1.2 charging port controller that includes a synchronous DC/DC converter. With cable droop compensation, the VBUS voltage remains constant regardless of load current, ensuring connected portable devices are charged at optimal current and voltage.

The TPS62864/6 devices from Texas Instruments are high-frequency synchronous step-down converters with I2C interface which provide an efficient, adaptive, and high power-density solution. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range.

Modern vehicles utilise auto-dimming mirrors to prevent glare and visibility loss for the driver. This reference design from Texas Instruments utilises modern human-eye-response ambient light sensors and a high-current amplifier stage to drive a capacitive electrochromic mirror load.

This local dimming backlight reference design from Texas Instruments, conserves power, extends the life of liquid-crystal displays (LCDs), and enhances automotive display quality through high dynamic range (HDR) or localised dimming technology. Seven multi-channel constant-current LED drivers allow for 144-zone localised dimming via pulsewidth modulation (PWM) on-time and current-level brightness configuration.

The TMP61-Q1 small silicon linear thermistors from Texas Instruments are designed for temperature measurement, protection, compensation, and control systems. Compared to traditional NTC thermistors, the TMP61-Q1 device offers enhanced linearity and consistent sensitivity across the full temperature range.

The TMP451-Q1 device from Texas Instruments is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, microcontrollers, or FPGAs. 

The TMP390-Q1 device from Texas Instruments is part of a family of ultra-low power, dual channel, resistor programmable temperature switches that enable protection and detection of system thermal events from -40 to +125°C. The TMP390-Q1 offers independent overtemperature (hot) and undertemperature (cold) detection. 

The TMP23x-Q1 devices from Texas Instruments are a family of automotive grade precision CMOS integrated-circuit linear analogue temperature sensors with an output voltage proportional to temperature, serving various automotive applications from powertrain to infotainment. These temperature sensors have a typical accuracy from zero to +70°C of ±0.5°C. 

This reference design from Texas Instruments enables a wearable, optimised saturation of peripheral capillary oxygen (SpO2) and multi-sensor, multi-wavelength optical heart rate monitor (HRM). It uses AFE4420 device, which is a single-chip, bio-sensing front end for photoplethysmography (PPG) measurements. 

This reference design from Texas Instruments demonstrates how to design a low noise analog signal chain for PIR-based motion detection subsystems in line-powered applications resulting in longer detection range. This reference designs offers design theory, component selection, and circuit simulations for noise, settling time, stability and frequency response. 

This reference design from Texas Instruments is a small-form factor solution showcasing double-sided PCB spacing and minimum supporting component requirements for the PGA460 ultrasonic sensor signal conditioner. This module operates in a mono-static mode for single sensor transmit and receive operation to enable object detection through air at a range of 0.3 to 5m. 

This is a 24-A DC/DC space power hardware reference design from Texas Instruments. As FPGA and ASIC technology advances, the core voltage requirements get lower but the current demand is larger. The newest space grade FPGAs and ASICS require low voltage and high currents for their core power consumption.