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iWave Systems launches a Solderable System on Module based on the NXP i.MX 8XLite applications processor

Posted on by mixos

iW-RainboW-G46M: The solderable i.MX 8XLite LGA System on Module is built on the OSM 1.0 Standard on a compact form factor of 30mm x 30mm while provisioning for 332 contacts. The module is AEC compliant and built for the next frontier of automotive and transportation solutions.

As the first i.MX Processor to include an on-chip V2X accelerator, while integrated with the V2X Optimized High Security Module (HSM) and Secure Hardware Extension (SHE), the i.MX 8XLite processor offers the required safety and performance required for Vehicle-to-Vehicle communication(V2V), Vehicle to Infrastructure (V2I) and Vehicle to Network (V2N) solutions.

The OSM Standard defines a standard for a system on module to be soldered on the carrier board as a solder-on module LGA package, by the replacement of board-to-board connectors. The main advantages of the OSM module include resistance to vibration, compact form factor with smallest pin to area ratio and provision for technology scalability. OSM Modules provide designers a solution with an ideal mix of scalability, form-factor, and cost.

Key Features of iW-RainboW-G46M

  • MX 8XLite Solo/Dual
  • 2GB LPDDR4 Memory (Expandable)
  • 8GB eMMC Flash (Expandable)
  • CAN Ports x 2
  • RGMII x 1
  • PCIe x 1
  • GPIO x 15
  • Size-SE: 30mm x 30mm
  • AEC Grade
  • -40°C to +125°C Operating Temperature

Featuring an array of high-speed interfaces such as Ethernet, PCIe Gen3, USB 2.0 and CAN Ports, the i.MX 8X Lite is a good fit for Industrial IoT, control and connectivity applications. With 2 x Cortex A-35 cores and 1 Cortex-M4 core powering the required low latency processing and data transmission, the processor is available in single and dual core variants.

“Integrating the powerful NXP i.MX 8XLite application processor in the solderable system on module form factor of the recent OSM Standard, the SoM can be a building block for compact connectivity devices.” said Ahmed Shameem M H, Hardware Project Lead at iWave Systems. “The AEC grade module is power-efficient and easily upgradable to power next-generation of connected mobility and smart city solutions.”

iWave also offers a development kit for the system on module to help customers accelerate their development and evaluation cycle. The system on module and the development kits are application-ready and integrated with all necessary software drivers and BSPs with software support of Ubuntu, Android, and Linux.

You can find more information on the i.MX 8X Lite based solderable System on Module at:

Learn More:

iWave Systems, is a global leader in the design and manufacturing of system on modules and single board computers. As a gold member of the NXP Partner Program, iWave enables companies with an extensive portfolio of i.MX embedded computing platforms.

For further information or inquiries, please write to mktg@iwavesystems.com.

Eggtronic launches ZVS PFC and regulator solution

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Eggtronic expands its EcoVoltas AC/DC architecture family with the SmartEgg ZVS PFC and regulator solution for 75 W to 1 kW power applications.

Eggtronic has expanded its EcoVoltas family of high-efficiency AC/DC architectures with the new SmartEgg zero voltage switching (ZVS) PFC and regulator solution. The SmartEgg solution is designed for power applications in the 75 W to 1 kW range that need both output voltage regulation and power factor correction.

The ZVS solution is said to enable a much higher no-load-to-full-load efficiency.

“Forced ZVS under every load condition delivers efficiencies of up to 95% at full load and 92% at light load,” said the company.

SmartEgg can achieve power densities of 30 W/in3, according to the company. The new architecture also delivers a 50 percent smaller bill of materials (BOM) than conventional converters. It is also said to be one of the first platforms to support the new USB Power Delivery Revision 3.1 specification, delivering up to 240 W of power over full-featured USB Type-C cables and connectors.

SmartEgg consists of an input rectifier (solutions are based on either an input bridge or bridgeless rectifier), two primary FETs, two secondary FET rectifiers, a single magnetic component, and a few capacitors. The main controller manages PFC and output voltage regulation, ZVS, and frequency control.

Traditional medium-power AC/DC PFC architectures use a boost PFC input stage and an LLC stage that controls the output voltage, said Eggtronic. In comparison, the SmartEgg cuts the number of MOSFET and magnetic components in half by replacing these two stages with a single-stage converter capable of controlling both input current and output voltage.

Eggtronic can create custom designs based on the new SmartEgg architecture or can provide the reference design together with the IC controller. Output options are fixed voltage, CC/CV battery charger, and USB PD 3.1. The first fixed-voltage reference design is available now. A multi-port USB PD 3.1 compliant version will be available in May 2022.

Target applications include adapters and chargers for high-performance laptops and power adapters for PCs, home appliances and TV panels. Eggtronic is exhibiting at APEC 2022 in booth #1823.

Barometric pressure sensor claims a new level of accuracy

Posted on by mixos


Bosch Sensortec’s BMP581 barometric pressure sensor claims a new level of accuracy, with low power consumption, for mobile device applications.
Bosch Sensortec GmbH has claimed a new level of accuracy to provide altitude tracking in a small form factor with the introduction of the BMP581 barometric pressure sensor. The BMP581, Bosch’s first capacitive barometric pressure sensor, also delivers low power consumption for longer battery life in mobile devices such as wearables, hearables, GPS modules, and IoT devices.

The BMP581, measuring 2.0 × 2.0 × 0.75 mm3, provides a relative accuracy of +/-0.06 hPa and a typical absolute accuracy of +/-0.3 hPa. The company said the accuracy of the barometric pressure fluctuation is “equivalent to one-thousandth of the weight of a mosquito (7.6 μg).” Full accuracy is available over a wide measurement range from 300 hPa to 1100 hPa.

The typical current consumption of the BMP581 is 1.3 μA at 1 Hz, which “substantially extends battery life,” said Bosch, while the deep standby mode draws 0.5 μA.

Other key specs include a typical temperature coefficient offset (TCO) of +/-0.5 Pa/K, low RMS noise of 0.08 Pa @ 1000 hPa (typical), and long-term drift over 12 months of +/-0.1 hPa. Interfaces include I2C, I3C, and SPI (3-wire/4-wire) digital, serial interface.

Features

  • 300 hPa to 1250 hPa measurement range (full accuracy)
  • ±30 Pa absolute accuracy
  • ±6 Pa relative accuracy pressure
  • ±0.1 hPa long term drift (12 months)
  • 1.65 V to 3.6 V supply voltage (VDD)
  • 1.2 V to 3.6 V I/O supply voltage (VDDIO)
  • Interfaces
    • I2C up to 3.4 MHz
    • SPI 3- and 4-wire, up to 10 MHz
  • Average typical current
    • 1.3 nA at 1 Hz pressure and temperature
    • 0.5 nA in deep standby mode
  • 0.08 Pa noise in pressure lowest bandwidth, highest resolution
  • ±0.5 Pa/K temperature coefficient offset
  • 0.3 hPa solder drift
  • 480 Hz (continuous mode) maximum sampling rate
  • 2.0 mm x 2.0 mm x 0.75 mm metal-lid LGA-10 package

Bosch has reinvented the barometric pressure sensor with a new core MEMS technology as well as a new ASIC and package design to deliver best-in-class performance, quality, and reliability, said Thomas Block, senior product manager, for magnetic and environmental sensors, Bosch Sensortec, in a video presentation.

The BMP581 also achieves a new benchmark due to its unique parameters in the market, which is also ensured in mass production, he added. The BMP581 uses a capacitive MEMS sensor and “it is the first time that Bosch is using this technology.”

Bosch previously used piezoresistive technology and still has many sensors with this alternative technology in production, Block said.

The new BMP-581 has shown “impressive improvements for all performance parameters,” and is significantly improved compared to previous generations of piezoresistive sensors, he said. Compared to the previous generation BMP390 barometric pressure sensors, as an example, the BMP581 reduces current consumption by 85 percent, improves noise by 80 percent, and lowers TCO by 33%.

The extremely high accuracy, which allows the sensor to detect an altitude change of a few centimeters, is said to enable new use cases that were previously impossible. Applications include fitness tracking, fall detection, indoor localization, and indoor navigation. The sensor can monitor movement in fitness applications, and highly accurate location information for indoor localization, navigation, and floor detection for emergency call requirements (E-911).

Other applications cited include monitoring flight stability and landing accuracy in drones and helping to detect water levels in household appliances.

There are three key areas, out of many, where the BMP581 realizes new use cases or improves existing solutions, said Block. “These are fitness applications, indoor localization, and indoor navigation. The BMP581 is simple to integrate due to its small size of 2 ×2-mm square at a height of 0.75 mm and it is suitable for continuous use due to the ultra-low current consumption.”

The sensor solution can address new use cases due to its high accuracy, he added. “Push-ups, sit-ups, stair walking, and bicep curls can now be measured on a very high accuracy level and battery devices can now be used for longer times due to the very low current consumption.”

The BMP581 is housed in a 10-pin LGA package shielded by a metal cover. The BMP581 and evaluation boards are available through Bosch’s distributors, including Arrow Electronics, Digi-Key, Future Electronics, Mouser Electronics, and Rutronik.

Learn more about Bosch Sensortec: https://www.bosch-sensortec.com/products/environmental-sensors/pressure-sensors/bmp580/

Sensirion STS40 ±0.2°C Ultra-low-power temperature sensor

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Sensirion STS40 Temperature Sensors are fully digital, high-accuracy I2C temperature sensors. These ultra-low power consumption sensors feature a compact 4 pin DFN SMT package, along with multiple preconfigured I2C addresses for flexible integration into various systems. Sensirion STS40 Temperature Sensors feature flexible operating conditions, with an operating temperature between -40°C and +125°C, as well as a supply voltage range between 1.08V and 3.6V.

Features

  • Temperature accuracy up to ±0.2°C
  • 1.08V to 3.6V supply voltage
  • 0.4μA average current (at 1Hz measure rate)
  • 80nA idle current
  • I2C fast mode plus, CRC checksum
  • Available with multiple I2C addresses
  • -40°C to +125°C operating temperature range
  • NIST traceability

more information: https://sensirion.com/products/catalog/STS40-DIS/

Maxim Integrated MAX16161 nanoPower Supply Supervisor

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Maxim Integrated MAX16161 nanoPower Supply Supervisor is an ultra-low current, single-channel supervisory IC with glitch-free power-up. The MAX16161 monitors the power supply voltage and asserts a reset when the input voltage falls below the reset threshold. After the monitoring voltage rises above the factory-set threshold voltage (VTH), the reset output remains asserted for the reset timeout period and then de-asserts, allowing the target microcontroller or microprocessor to leave the reset state and begin operating. The MAX16161 reset output is guaranteed to remain asserted until after a valid VCC is achieved. This feature is important to avoid low-voltage cores leaving the reset state during power-up or power-down. This design also improves performance when using the MAX16161 as a simple power supply sequencer.

The MAX16161 features a Manual Reset (MR) input that asserts a reset when it receives an appropriate input signal, which may be either active-low or active-high, depending on the option. The reset output is active-low open-drain, and the device offers multiple reset timeout period options.

The Maxim Integrated MAX16161 nanoPower Supply Supervisor is specified over the -40°C to +125°C temperature range and is available in tiny, 1.06mm x 0.73mm, 4-bump WLP, and 4-pin SOT23 packages.

Features

  • Glitch-free power-up
  • 825nA (typical) quiescent current extends battery life
  • Positive and negative level-triggered MR input options
  • MR debounce circuitry
  • Multiple available reset timeout periods
  • 1.7V to 4.85V threshold voltage
  • -40°C to +125°C operating temperature range
  • 4-bump WLP and 4-pin SOT23 package options

Application Circuit

 more information: https://www.maximintegrated.com/en/products/power/supervisors-voltage-monitors-sequencers/MAX16161.html

Maxim Integrated MAX77501 Piezo Haptic Actuator Boost Driver

Posted on by mixos

Maxim Integrated MAX77501 Piezo Haptic Actuator Boost Driver is a high-efficiency controller driver for piezo haptic actuators. The driver is optimized for driving up to 2µF piezo elements. It can generate a single-ended haptic waveform of up to 110VPK-PK amplitude from a 2.8V to 5.5V input power supply or a single-cell Li+ battery. Memory playback and haptic waveforms in real-time streaming modes are supported.

Features

  • 110VPK-PK haptic waveforms generation
  • Optimized for up to 2µF haptic piezo actuator
  • 2.8V to 5.5V input supply range
  • 600μs start-up time to haptic playback
  • High-efficiency, low IQ extends battery life
    • 75μA standby current/1μA shutdown current
    • Maxim patented ultra-low-power boost architecture
  • 12-bit haptic waveform playback DAC
  • Real-time streaming and RAM playback modes
    • 9k FIFO buffer with FIFO ready status signal
    • 8k RAM buffer for waveforms storage
  • 25MHz SPI interface
    • SPI ready, warning and fault conditions interrupt
  • Protection features
    • Programmable cycle-by-cycle overcurrent limit, 130V overvoltage, UVLO, and thermal protection
  • Small size and low profile
    • 2.42mm x 2.02mm, 30 bump WLP

Application Circuit

AP7368 Series Low-Noise LDO Regulator

Posted on by mixos

Diodes’ low dropout (LDO) regulators feature a selectable 0.5 A / 1 A output current that is optimized for portable applications

Diodes’ AP7368 series LDO linear regulator offers a high PSRR of 80 dB and is optimized for applications that require low-noise voltage rails while occupying a very small space. For increased versatility, the device has a selectable maximum output current of 0.5 A or 1 A. This allows optimized designs for the required output loads which mitigate thermal or protection issues. The built-in current-foldback varies with the output current selection; 60 mA for low-current mode and 110 mA for high-current mode. This alleviates thermal-shutdown cycling during short-circuit fault conditions and helps protect the IC from damage.

The AP7368 has an active-high enable pin. Bringing this pin low disables the LDO and engages an active output-discharge circuit. This ensures that the system/rail always starts up in a known state. The AP7368 is available in the tiny X-DFN1612-8 (Type B) package, features an exposed thermal pad, and occupies a PCB area of 1.2 mm x 1.6 mm.

Features

  • High PSRR: 80 dB at 1 kHz for VOUT ≥1.8 V
    • Rejects line-based noise in audio, video, and RF subsystems
  • Ultra-low dropout voltage: 190 mV (VOUT = 3.3 V, IOUT = 1 A)
    • Maximizes the usable supply voltage range, particularly in battery-powered devices
  • 1.0% output accuracy range: -40°C to +85°C
    • Maintains accuracy under all conditions
  • Wide input voltage range: 1.7 V to 5.5 V
    • Supports standard rails and core-to-core LDO POL applications
  • Small footprint, low thermal impedance X1-DFN1612-8 package (JC = +15.4°C/W)
    • Suitable for high-power-density POL equipment

more information: https://www.diodes.com/part/view/AP7368/

TLV916x RRIO Low-Noise Op Amps

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Texas Instruments’ 16 V, 11 MHz op amps are ideal for industrial applications offering high performance and flexibility

Texas Instruments’ TLV916x (TLV9161, TLV9162, and TLV9164) is a family of 16 V, general-purpose op amps that offer exceptional DC precision and AC performance including rail-to-rail input/output (RRIO), low offset, low-offset drift, and low noise. Features including differential and common-mode input voltage ranges to the supply rails, high short-circuit current (±73 mA), and high slew rate (33 V/µs) make these devices flexible, robust, and high-performance op amps for industrial applications.

The TLV916x op amps are available in microsize packages including WSON, as well as standard packages such as SOT-23, SOIC, and TSSOP. The devices offer a temperature range of -40°C to +125°C.

Features

  • Low offset voltage: ±210 µV (typ.)
  • Low offset voltage drift: ±0.25 µV/°C (typ.)
  • Low noise: 6.8 nV/√Hz at 1 kHz, 4.2 nV/√Hz at 10 kHz broadband
  • High common-mode rejection: 110 dB
  • Low bias current: ±10 pA
  • RRIO
  • Supply ranges: ±1.35 V to ±8 V and 2.7 V to 16 V
  • Robust EMIRR performance
  • MUX-friendly/comparator inputs
  • Amp operates with differential inputs up to the supply rails
  • Amp can be used in an open-loop or as a comparator
  • Wide bandwidth: 11 MHz GBW, unity-gain stable
  • High slew rate: 33 V/µs
  • Low quiescent current: 2.4 mA per amp

more information: https://www.ti.com/product/TLV9161

LPS22CH High-Performance MEMS Nano Pressure Sensor – 260-1260 hPa absolute digital output barometer

Posted on by mixos

STMicroelectronics’ ultra-compact piezoresistive absolute pressure sensor functions as a digital output barometer

STMicroelectronics’ LPS22CH is an ultra-compact piezoresistive absolute pressure sensor that functions as a digital output barometer. The device comprises a sensing element and an IC interface that communicates through I²C or SPI from the sensing element to the application. The sensing element, which detects absolute pressure, consists of a suspended membrane manufactured using a dedicated process developed by ST.

The LPS22CH is available in a full-mold, holed LGA package (HLGA). It is guaranteed to operate over a temperature range extending from -40°C to +85°C. The package is holed to allow external pressure to reach the sensing element.

Features

  • 260 hPa to 1260 hPa absolute pressure range
  • Current consumption down to 4 µA
  • Low pressure sensor noise: 0.75 Pa
  • Relative pressure accuracy: 10 Pa
  • Embedded temperature compensation
  • 24-bit pressure data output
  • ODR from 1 Hz to 200 Hz
  • SPI, I²C interfaces
  • Embedded FIFO
  • Interrupt functions: data-ready, FIFO flags, pressure thresholds
  • Supply voltage: 1.7 V to 3.6 V
  • High shock survivability: 22,000 g
  • Small and thin package
  • ECOPACK lead-free compliant

more information: https://www.st.com/en/mems-and-sensors/lps22ch.html

Texas Instruments TCA9536 4-Bit I/O Expander

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Texas Instruments TCA9536 4-Bit I/O Expander is for the I2C bus and is designed for 1.65V to 5.5V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface.

The system controller can enable the I/Os as either inputs or outputs by writing to the I/O configuration register bits. The data for each input or output is kept in the corresponding input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. An additional special function register can be used to disable the internal pull-up resistors and P3 override to an INT output.

The Texas Instruments TCA9536 open-drain interrupt output (when P3 is configured as INT in the special function register) is activated when any input differs from its corresponding Input Port register state. It is used to indicate to the system controller that an input state has changed.

The system processor can reset the TCA9536 in the event of a timeout or other improper operation by using an I2C soft reset command, which puts the registers in the register’s default state.

Features

  • I2C to GPIO expander
  • Operating power-supply voltage range of 1.65V to 5.5V
  • 5V tolerant I/O ports
  • Software reset via I2C general call
  • Software-enabled integrated pull-up resistors on P ports
  • P3 can be repurposed as INT output
  • 1MHz Fast mode plus I2C bus
  • Input and output configuration register
  • Polarity inversion register
  • Internal power-on reset
  • Power-up with all channels configured as inputs
  • Noise filter on SCL and SDA inputs
  • Latched outputs with high-current drive maximum capability for directly driving LEDs
  • ESD protection exceeds JESD 22
    • 2000V Human-body model (A114-A)
    • 1000V Charged-device model (C101)

more information: https://www.ti.com/product/TCA9536

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