Thursday, June 30, 2011

TSC1021 High side current sense amplifier

The TSC1021 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage.

The TSC1021 has been specifically designed to deal with automotive conditions: load-dump protection up to 60 V, reverse-battery protection up to -32 V, ESD protection up to 4 kV and internal filtering for EMI performance.

Input common-mode and power supply voltages are independent: the common-mode voltage can range from 2.8 to 30 V in operating conditions and up to 60 V in absolute maximum ratings while the TSC1021 can be supplied by a 5 V independent supply line.

EVL250W-ATX80PL 250 W ATX SMPS demonstration board

The EVL250W-ATX80PL is a demonstration board of a 250 W power supply unit that implements an ATX like (multiple output configuration) or a server like (single output configuration) design.

The EVL250W-ATX80PL has been certified by ECOS Consulting committee compliant to the 80 PLUS® specifications.

STEVAL-ILM001V1 Plug-in hardware module for the STM8S-DISCOVERY interface for DALI communication

The STEVAL-ILM001V1 is a plug-in module for the STM8S-DISCOVERY kit and SW DALI library, to create a fully working DALI slave application. The STM8S-DISCOVERY + STEVAL-ILM001V1 work as a DALI slave device and can be connected to and controlled by any DALI network.

The LD1 on the STM8S-DISCOVERY kit is used as a light source. Its brightness, fade-in/out times, etc., as defined by the DALI standard, can be controlled through DALI to simulate a normal lamp behavior.

The DALI (Digital Addressable Lighting Interface) standard is a communication protocol widely used in intelligent lighting applications. Its use is not limited to fluorescent tube lamp dimmable ballasts, for which it was initially designed, but also for future LED applications.

The user is expected to be familiar with the DALI standard and its details.

LIS3DH MEMS digital output motion sensor ultra low-power high performance 3-axes "nano" accelerometer

The LIS3DH is an ultra low-power high performance three axes linear accelerometer belonging to the “nano” family, with digital I2C/SPI serial interface standard output. The device features ultra low-power operational modes that allow advanced power saving and smart embedded functions.

The LIS3DH has dynamically user selectable full scales of ±2g/±4g/±8g/±16g and it is capable of measuring accelerations with output data rates from 1 Hz to 5 kHz. The self-test capability allows the user to check the functioning of the sensor in the final application. The device may be configured to generate interrupt signals by two independent inertial wake-up/free-fall events as well as by the position of the device itself. Thresholds and timing of interrupt generators are programmable by the end user on the fly. The LIS3DH has an integrated 32-level first in, first out (FIFO) buffer allowing the user to store data for host processor intervention reduction. The LIS3DH is available in small thin plastic land grid array package (LGA) and it is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

STEVAL-ILL022V1 25 W LED street light with 80 W solar energy charger based on STM32F101Rx

The solar-LED streetlight controller is made up of one 80 W battery charger and one 25 W LED driver.
When the sun is present the charger converts the electricity from the solar panel then charges the battery. In a dark ambient where no sun is present the battery powers on the LED lamp as a streetlight. When wet or cloudy weather persists for several days the battery gradually runs out of power. The controller then switches on the AC mains supply instead of the battery to power on the LED until the battery is fully charged again.

Tuesday, June 28, 2011

STMicroelectronics Unveils Fast-Write Memory for Low-Cost Black-Box Recorders

Super-fast page-write time for proven Non-Volatile Memory technology simplifies design of emergency data storage

Geneva, June 28, 2011 - STMicroelectronics (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications and the world’s leading supplier of EEPROM memories for electronic equipment, has introduced a new memory with a unique ultra-fast recording feature for storing important data during unexpected events. Its uses will include recovering system data when a sudden power failure occurs, and ‘black-box’ recorders that help identify the causes of equipment failures or accidents.