PT Electronics GmbH news
7 Jun 2017 The STBC02/03 are highly integrated battery management ICs embedding a linear battery charger, a 150 mA LDO, 2 SPDT load switches and a protection circuit module to prevent the battery from being damaged under fault conditions. The STBC02 also embeds a smart reset/watchdog block and a single wire interface for IC control
The STBC02 charges the battery up to 450 mA while the STBC03 up to 650 mA.
Both ICs use a CC/CV algorithm to charge the battery. The fast charge and pre-charge current can be both independently programmed using dedicated resistors. The termination current is set by default, being 5% of the programmed fast charge current, but it can also be set to different values in the STBC02. Likewise, the battery floating voltage value is programmable and can be set to a value up to 4.45 V
The STBC02/03 also feature a charger enable input to stop the charging process anytime.
- Charges single-cell Li-Ion batteries with CC/CV algorithm
- Fast charge current up to 450 ma (up to 650 mA for STBC03)
- Pre-charge current from 1 mA to 450 mA
- Adjustable floating voltage up to 4.45 V
- Integrated low quiescent LDO regulator
- Auto-recharge function
- Charge/fault status output
- Available in FlipChip30
31 May 2017 The IPS161H is a single high-side switch with protections and diagnostics for Safety Integrity Level (SIL2 and SIL3) compliant systems. With a supply voltage range up to 60 V, the IPS161H intelligent power switch (IPS) is capable of safely driving complex (resistive, capacitive and inductive) loads with one side connected to ground such as valves, relays and lamps in factory automation or process control applications.
- Wide supply voltage range: 8 to 60 V
- Current limitation > 0.7 A with programmable cut-off delay time
- Detection of open load or short to Vcc in OFF state
- Max. on-state resistance of 120 mOhm (60 mOhm typ.) for very low conduction losses
- Fast demagnetization of inductive loads
17 May 2017 STMicroelectronics has begun volume production of ultra-low-power STM32L45x microcontrollers (MCUs), supported by a development ecosystem based on the easy-to-use and affordable STM32Cube platform. STMicroelectronics Delivers New STM32L4 MCUs with On-Chip Digital Filter, Supported by Extended Development Ecosystem
The STM32L451, STM32L452, and STM32L462 lines integrate a Digital Filter for Sigma-Delta Modulators (DFSDM), enabling advanced audio capabilities such as noise cancellation or sound localization on an inexpensive microcontroller. Up to 512 Kbyte on-chip Flash and 160 Kbyte SRAM provide generous code and data storage.
The new MCUs also feature a True Random-Number Generator (TRNG) that streamlines development of security-conscious applications such as connected smart devices. The STM32L462 further enhances support for developing secure devices by integrating an AES-256 cryptographic hardware accelerator.
Other features include smart analog peripherals such as a 12-bit 5Msample/s ADC, internal voltage reference, and ultra-low-power comparators. There are multiple timers, a motor-control channel, temperature sensor, a capacitive-sensing interface, and the STM32L452 also has a crystal-less USB2.0 controller.
The development ecosystem includes the STM32CubeMX initialization-code generator and STM32CubeL4 package comprising middleware components, Nucleo-64 Board-Support Package (BSP), Hardware Abstraction Layer (HAL), and Low-Layer APIs (LLAPIs). STM32CubeMX has a power-estimation wizard that assists low-power design and additional wizards for managing clock signals and pin assignments.
The Nucleo-64 board, NUCLEO-L452RE, provides an affordable and flexible way for users to try out new ideas and build prototypes. It integrates the ST-LINK/V2 probe-free debugger/programmer and can be expanded via Arduino®-compatible headers.
Offering features unavailable in other ultra-low-power MCUs, the new STM32L4 devices deliver both high core performance and outstanding ultra-low-power efficiency. The EEMBC® CoreMark® score of 273 outperforms other ultra-low-power cores, while the ULPBench™ score of 245 confirms greater energy efficiency. Active-mode current of just 36µA/MHz enables longer runtime on small batteries and extends scope to create energy-neutral products powered from ambient sources.
Devices can be ordered now, in small-form-factor packages from QFN-48 to LQFP-100, including a 3.36mm x 3.66mm WLCSP. The NUCLEO-L452RE-P board with external DC/DC converter will be available to distributors in June 2017.
13 May 2017 STM32 Nucleo expansion board X-NUCLEO-IKS01A2 packs a 3D accelerometer and 3D gyroscope inertial module LSM6DSL, a high-performance 3D accelerometer and 3D magnetometer eCompass module LSM303AGR, a humidity and temperature sensor HTS221 and a MEMS absolute pressure sensor LPS22HB. Affordable and easy to use together with the software expansion package for STM32Cube X-CUBE-MEMS1, it enables building multi-sensor nodes for IoT designs
- LSM6DSL MEMS 3D accelerometer (±2/±4/±8/±16 g) and 3D gyroscope (±125/±245/±500/±1000/±2000 dps)
- LSM303AGR MEMS 3D accelerometer (±2/±4/±8/±16 g) and MEMS3D magnetometer (±50 gauss)
- LPS22HB MEMS pressure sensor, 260-1260 hPa absolute digital output barometer
- HTS221: capacitive digital relative humidity and temperature
- DIL24 socket for additional MEMS adapters and other sensors
- Free comprehensive development firmware library and example for all sensors compatible with STM32Cube firmware
- Compatible with STM32 Nucleo boards
- Equipped with Arduino UNO R3 connector
5 May 2017 The new high-connectivity STM32L4 IoT Discovery kit (B-L475E-IOT01A) from STMicroelectronics gives unrivalled flexibility for developers building IoT (Internet of Things) nodes by supporting multiple low-power wireless standards and Wi-Fi® , while integrating a complete collection of motion, gesture, and environmental sensors, unavailable on other kits in the market. Affordable STM32 Cloud-Connectable Kit from STMicroelectronics Puts More Features On-Board for Fast and Flexible IoT-Device Development
Designed to help promptly connect IoT devices to Cloud services power-efficiently and cost-effectively, ST’s new IoT development kit adds modules for Bluetooth® low energy (BLE), sub-GHz RF, and Wi-Fi, with a dynamic NFC-tag IC with printed antenna to a high-performance, ultra-low power STM32L4 microcontroller all on the same board.
The comprehensive selection of sensors, leveraging ST’s large portfolio of MEMS (Micro-Electro-Mechanical Systems) and laser-ranging devices, support both user interaction and environmental awareness. A MEMS accelerometer and gyroscope IC and MEMS magnetometer for 9-axis motion sensing, a barometric pressure sensor, temperature/humidity sensor, two omnidirectional digital microphones, as well as a FlightSense™ proximity and gesture sensor, are all ready to use with no extra integration effort needed.
The Discovery kit lets users take advantage of ST’s X-CUBE-AWS expansion software to quickly connect to the Amazon Web Services (AWS) IoT platform, and access tools and services in the Cloud, such as device monitoring and control, data analysis, and machine learning. Support for other Cloud providers will be added in future, as well as software function packs that provide all the components needed to prototype end-to-end IoT solutions, including pre-integrated full application examples.
The heart of ST’s new high-connectivity Discovery kit is an 80MHz STM32L475 32-bit microcontroller that combines the ARM® Cortex®-M4 core featuring DSP extensions, 1MB on-chip Flash, and the Company’s ultra-low-power technologies to help build smart IoT devices on a tight power budget. The combination of MCU performance with rich sensor and wireless integration on the board maximizes the Discovery kit’s utility, while additional custom functionality may be added using the industry-standard Arduino and Pmod™ expansion connectors. These two established ecosystems give access to a large selection of expansion boards, which can be quickly connected and easily integrated.
Equipped with the ST-Link debugger/programmer on-board, the STM32L4 Discovery kit IoT node does not need any external probe, and can be used with ARM® Keil® MDK-ARM, IAR™ EWARM, or GCC/LLVM-based Integrated Development Environments (IDEs) including free AC6 SW4STM32, or with mbed™ online tools.
The STM32L4 IoT Discovery kit is ready to order now from st.com or distributors (part number B-L475E-IOT01A1 for 915MHz operating frequency, or B-L475E-IOT01A2 for 868MHz operating frequency).
For further information please visit www.st.com/disco-l475e-iot
29 Apr 2017 The TSZ182 is a dual operational amplifier featuring very low offset voltages with virtually zero drift versus temperature changes.
These features make the TSZ182 ideal for high-accuracy high-bandwidth sensor interfaces.
- Very high accuracy and stability: offset voltage 25 μV max at 25 °C, 35 μV over full temperature range (-40 °C to 125 °C)
- Low supply voltage: 2.2 - 5.5 V
- Low power consumption: 1 mA max. at 5 V
- Gain bandwidth product: 3 MHz
- Extended temperature range: -40 to 125 °C
- Micropackages: DFN8 2x2 and MiniSO8
20 Apr 2017 Sensors used to control lights or trigger alarms based on motion detection are a design challenge as they must be ultra-low power to ensure long battery life.
STMicroelectronics offers the STEVAL-IDI009V1 evaluation board builds a complete signal conditioning chain for the on-board passive infrared (PIR) sensor around the TSU102, a nanopower op amp consuming as low as 24 µA in idle state.
The board can connect to STM32 Nucleo development boards or an Arduino UNO R3 and comes with free firmware for evaluation and code development
- Allows motion detection with PIR sensor
- Suitable for home automation applications
- Based on TSU102 operational amplifier
- Band pass filter bandwidth from 0.7 Hz to 5 Hz
- Only 24 µA current consumption
- With Fresnel lens to widen detection area
- Compatible with NUCLEO boards
- Compatible with Arduino UNO R3
15 Apr 2017 Small electronic products like wearables and IoT devices can now provide high-end audio features, including advanced aural user interfaces, thanks to a new easy-to-use graphical design tool for STM32™ microcontrollers from STMicroelectronics, (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications. STMicroelectronics Teams with DSP Concepts to Give STM32 Users Free Access to Advanced Audio Design Tool.
ST has worked with DSP Concepts, creator of the Audio Weaver design suite, to present a free version of the tool - ST-AudioWeaver - for developers using its 32-bit ARM® Cortex®-M based STM32 microcontrollers. Audio Weaver enables product designers to build complex digital audio applications without coding. Developers simply choose the required audio modules from a library, connect them graphically, and adjust them by live-tuning on the target hardware. Examples are included, which accelerate learning and help jump-start new projects.
ST-AudioWeaver contains a library of 160 royalty-free digital audio-processing modules, including versatile and powerful filtering, array-processing and noise-cancelling modules that can make voice-recognition systems far more effective. The Audio Weaver Designer PC GUI is also included free of charge, which lets developers configure the modules and do fine-tuning in the GUI or on prototype hardware. This creates a customized audio-processing engine that runs directly on the production embedded system with no further tailoring required. Users are also free to take advantage of DSP Concepts’ commercial offers to scale and upgrade ST-Audio Weaver, for example by adding further audio modules or MATLAB® API support. No DSP coding skills are required. When using the runtime core libraries, the output is optimized embedded code, ready for production, which significantly reduces development time and costs.
Plentiful audio features add to the STM32 credentials as the reference microcontroller family for IoT applications, and include peripherals such as I2S and S/PDIF digital audio interfaces, and a DFSDM input that streamlines acquisition of MEMS-microphone signals and is ideal for voice-command applications. The DSP core extensions of the STM32F4, STM32L4, and STM32F7, which are the series currently supported in ST-AudioWeaver, enable a single-chip solution capable of high-performance audio processing, which would otherwise require a separate DSP co-processor.
ST presents this special offer for free to the STM32 customers and adds the support of a number of ST audio modules such as virtualization and bass enhancement.
30 Mar 2017 STM8CubeMX supports the complete portfolio of mainstream, low-power, and automotive 8-bit STM8 microcontrollers. This new, free tool helps designers select the optimum 8-bit microcontroller (MCU) from the STM8 family to satisfy their application requirements. Designers can also jump-start development on STM8 boards from the ST portfolio by pre-configuring the tool in the same way the MCU is implemented on the chosen board. STM8CubeMX then provides graphical tools that help complete basic configuration of the chosen device. These include a pinout configurator with automatic conflict resolution, a clock-tree configurator with dynamic validation, and a power sequencer and consumption estimator. A configuration report generated on completion shows how the designer’s requirements have been met.
The STM8CubeMX PC-based application is available for Windows®, Linux®, and macOS® platforms
24 Mar 2017 The STSPIN250 single-chip 2.6A driver for brushed DC motors extends STMicroelectronics’ family of miniature, low-voltage, energy-efficient drivers for battery-powered portable and wearable applications.
The driver integrates a full power-MOSFET bridge and fixed off-time PWM current controller in a tiny 3mm x 3mm package that saves space in portable equipment. The low on-resistance of the power stage (200mΩ total, high-side + low-side) and the best-in-the market current-sipping standby mode -- below 80nA -- help maximize battery runtime and keep equipment-case temperatures down. Its supply-voltage range of 10V to 1.8V allows designers to specify a power source as small as a single Li-ion cell.
Brushed DC motors offer a strong combination of performance, cost-effectiveness, and reliability, and are a popular choice of designers in a wide variety of applications.
STSPIN250’s high output-current capability allows use in low-to-medium-power applications such as portable printers, POS terminals, consumer devices, electronic valves or door lockers, toys, and medical or wellness devices ranging from electric toothbrushes to syringe pumps. It also has comprehensive built-in protection features including Under-Voltage lockout (UVLO), non-dissipative over-current protection, short-circuit protection, and thermal shutdown.
The STSPIN250 joins the three monolithic, low-voltage drivers for portable and battery-powered applications that ST introduced last year: the STSPIN220 for stepper motors, STSPIN230 for three-phase brushless motors, and STSPIN240 for brushed DC motors up to 1.3A. The STSPIN family now presents designers with a choice of compact, convenient, and energy-efficient drivers for the motor types most commonly used in portable applications, contributing to the widespread adoption of battery-powered IoT devices.
A complete ecosystem is ready to support fast and easy evaluation and prototyping with the STSPIN250, and comprises an STM32 Nucleo expansion board (X-NUCLEO-IHM13A1) and related software tools (X-CUBE-SPN13) that connect motor-control projects with the extensive STM32Cube MCU-development resources.
The STSPIN250 is in production now in the 3mm x 3mm VQFPN package.
For further information please visit www.st.com/STSPIN