Designed for pulse-width modulated (PWM) current control of DC motors, Allegro MicroSystems' A3948 integrated circuit can deliver a continuous output current of up to ±1,5 A and an operating voltage up to 50 V. The device features internal fixed off-time PWM current-control timing circuitry that can be programmed via a serial interface to operate in slow, fast and mixed current-decay modes.
'Phase' and 'enable' input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM-control signals. The 'enable' input can be programmed via the serial port to pulse-width-modulate the bridge in fast or slow current decay mode. Internal synchronous rectification control circuitry is provided to reduce power dissipation during PWM operation. Internal circuit protection includes thermal shutdown with hysteresis, and crossover-current protection. Special power-up sequencing is not required.
The device is available in two package styles: a 24-pin dual-inline package with copper batwing tab, and a 24-lead SOIC surface-mount package with copper batwing tab.
Bluetooth evaluation kit 29 April 2020, Altron Arrow
, Telecoms, Datacoms, Wireless, IoT
The Cypress CYW920719B2Q40EVB-01 evaluation kit enables users to evaluate and develop single-chip Bluetooth applications using the CYW20719, an ultra-low-power dual-mode Bluetooth 5.0 wireless MCU (microcontroller) ...
Read more...Solid-state drive based on QLC technology 29 April 2020, Altron Arrow
, Computer/Embedded Technology
Micron Technology announced new Micron 5210 ION enterprise SATA SSD capacity and features, solidifying its leadership in QLC (quad-level cell) technology volume production. The world’s first QLC solid-state ...
Read more...Automotive MOSFETs in a variety of packages 29 April 2020, Altron Arrow
, Power Electronics / Power Management
Reducing CO2 emissions of passenger cars is accelerating 48 V board net adoption. For this emerging 48 V market, Infineon Technologies offers a broad portfolio of automotive 80 V and 100 V MOSFETs as ...
Read more...Chipset for Wi-Fi 6E applications 29 April 2020, Altron Arrow
, Telecoms, Datacoms, Wireless, IoT
ON Semiconductor announced sampling of its new QCS-AX2 chipset family that supports the 6 GHz spectrum band based on the enhanced Wi-Fi 6E standard. Designed with a high-performance, flexible architecture ...
Read more...Synchronous buck converter 29 April 2020, Altron Arrow
, Power Electronics / Power Management
Diodes Incorporated introduced the AP62600 synchronous DC-DC buck converter for point-of-load (POL) conversion in applications such as TVs, monitors, white goods, home appliances, consumer electronics ...
Read more...Tiny step-down regulator 29 April 2020, Altron Arrow
, Power Electronics / Power Management
The LTM4657 is part of Analog Devices’ family of tiny, high-efficiency, identical pin-out, step-down µModule devices. The LTM4657 is designed to operate at lower switching frequencies than the LTM4626 ...
Read more...Versatile temperature sensor IC 25 March 2020
, Analogue, Mixed Signal, LSI
Although the WSEN-TIDS temperature sensor from Würth Elektronik measures just 2,0 x 2,0 x 0,5 mm, its range of application is wide. Its accuracy in the measuring range -40°C to 125°C is ±0,5°C, while ...
Read more...Cryptographic MCU protects against malware 29 April 2020, Altron Arrow
, DSP, Micros & Memory
With the rapid growth of 5G including new cellular infrastructure, growing networks and data centres supporting expanding cloud computing, developers are seeking new ways to ensure operating systems remain ...
Read more...IMUs that carry machine learning burden 29 April 2020, Altron Arrow
, Analogue, Mixed Signal, LSI
Designed for use in a wide variety of consumer and industrial applications, STMicroelectronics’ 6-axis iNEMO inertial measurements units (IMU) feature an embedded machine learning core (MLC) to offload ...
Read more...Bipolar DC-DC supply design sources and sinks current 29 April 2020, Altron Arrow
, Power Electronics / Power Management
Most electronic systems depend on power voltage rails that are either positive or negative, but a few applications require individual rails that can be both. In these situations, positive or negative ...
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