STMicroelectronics

The STEVAL-STWINMAV1 microphone array expansion adds advanced audio sensing capabilities to the STEVAL-STWINKT1B (and STEVAL-STWINKT1) SensorTile Wireless Industrial Node (STWIN) kit for high frequency vibration monitoring applications. The board includes four low-power, high signal-to-noise ratio (SNR) MP23ABS1 capacitive sensing microphones, supported by a very low drop voltage, low quiescent current and low-noise voltage regulator ideal for batter-powered applications such as STWIN. The expansion board is connected via a dedicated 12-pin connector to the core system board, which runs the STSW-STWINKT01 firmware with dedicated BSP drivers and application examples for you to test and develop vibration monitoring in the ultrasound frequency ranges.

The STEVAL-STWINWFV1 expansion board adds 2.4 GHz Wi-Fi connectivity to the STEVAL-STWINKT1B (and STEVAL-STWINKT1). Application examples that take advantage of this expansion board can be found in STSW-STWINKT01 firmware package as well as in the FP-IND-PREDMNT1 Predictive Maintenance Function Pack.

The STEVAL-TDR015V1 is a demonstration board using the PD54008L-E LDMOS transistor. It is designed for 2-way UHF portable radio applications.

The STEVAL-TDR016V1 is a common source N-channel enhancement-mode lateral field effect RF power amplifier designed for VHF marine radio application.

The STEVAL-TDR022V1 is an demonstration board using PD85025-E LDMOS transistor and designed for UHF OFDM and 2-way mobile radios.

The STEVAL-TDR034V1 demonstration board is a 70 W hybrid RF power module for 12.5 V mobile radios that operate in the 380-470 MHz band. This module is a 3-stage lineup power amplifier using the PD84002, the PD85006L-E and two PD85050S specially designed for broadband operation, which allows power control, high gain and high efficiency. The board uses devices in plastic packages to ensure a high moisture sensitivity level. For additional information, please refer to www.st.com/rf.

This evaluation board is based on the STLD40D that is a boost converter that operates from 3.0 V to 5.5 V and can provide an output voltage as 37 V and can drive up to 10 white LEDs in series. The converter is a PFM (pulse frequency modulation) inductor switches and can work in discontinuous (DCM) mode operation. A minimum OFF time of the embedded boost switch TSW is fixed internally and allows limiting the switching frequency. The output current capability is 20 mA with an output voltage of 37 V. The regulation is done by sensing the led current through the resistor RLED. The device can be turned ON/OFF through the logic enable signal pin EN. Applying a low frequency PWM signal the LEDs can be dimmed. The maximum peak inductor current can be programmed.

This document focuses on a reference design for a simple, low cost 12 V 1 A flyback converter based on the PM8800A device. The PM8800A is a highly integrated device embedding an IEEE 802.3af compliant "Powered Device" (PD) interface together with a PWM controller. It can be successfully used in all low power, low cost PoE applications.

This document focuses on a reference design for a simple, low cost 5 V 2 A flyback converter based on the PM8800A device. The PM8800A is a highly integrated device embedding an IEEE 802.3af compliant "Powered Device" (PD) interface together with a PWM controller. It can be successfully used in all low power, low cost PoE applications.

The STEVAL-TTM001V1 evaluation kit is designed to demonstrate the highly efficient ST automotive-grade 100 V STripFET F7 series Power MOSFETs and BLDC motor driver IC operating in typical automotive low voltage (car battery up to 48 V), high current motor control applications. The kit has two boards to sense and condition currents and a driver board with a programmable L9907 FET driver with full diagnostics to manage all 36 STH315N10F7 Power MOSFETs on a separate power board also included in the kit. The driver board also includes an ST motor control connector to interface with any compatible ST motor control board (not included in the kit), and various other connectors and jumpers for monitoring and protection, motor position feedback information, and auxiliary power.