The new A2521 from Allegro MicroSystems is an integrated high-side power switch circuit designed to supply power to external peripherals from battery-operated equipment. The device has an input voltage range of 2,5-7 V, and the internal switch features low 'on' resistance (200 mOhm typical), which minimises the input voltage headroom requirement. The low quiescent current (1,5 µA maximum) and running current (200 µA typical) help to extend battery life.
Overcurrent is internally limited, and a 'soft start' feature eliminates the momentary voltage drop that can occur at an external peripheral when the switch is activated. Thermal shutdown with hysteresis prevents switch damage from excessive loads.
In addition to providing peripheral power supplies for portable computing and communication systems, the A2521 can be used in 'hot swap' plug-in power supplies and battery-charge circuits. The device is supplied in a 6-lead plastic surface-mount SOT-23 package.
Converter power modules for 48 V networks Altron Arrow
Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.
Read more...Memory for asset tracking Altron Arrow
DSP, Micros & Memory
The Page EEPROM, ST’s latest memory, has been designed for efficient datalogging and fast firmware upload/download in battery-operated devices.
Read more...Microchip and AVIVA Links collaboration Altron Arrow
News
Microchip and AVIVA Links have achieved groundbreaking ASA-ML interoperability, accelerating the shift to open standards for automotive connectivity.
Read more...Expanded STM32WL3x line for IoT sensors Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STM32WL31x and STM32WL30x are more tailored versions of the STM32WL33x for designers who wish to focus on specific features, while lowering their bill of materials.
Read more...Ultra-low jitter clock buffers Altron Arrow
Telecoms, Datacoms, Wireless, IoT
New SKY53510/80/40 family of clock fanout buffers from Skyworks are purpose-built for data centres, wireless networks, and PCIe Gen 7 applications.
Read more...Customisable high-voltage reed relay
Switches, Relays & Keypads
Pickering Electronics has introduced its Series 600 relays, the company’s most customisable range of high voltage reed relays to date.
Read more...Ultra-low power MEMS accelerometer Altron Arrow
Analogue, Mixed Signal, LSI
Analog Devices’ ADXL366 is an ultra-low power, 3-axis MEMS accelerometer that consumes only 0,96 µA at a 100 Hz output data rate and 191 nA when in motion-triggered wake-up mode.
Read more...Converting high voltages without a transformer Altron Arrow
Editor's Choice Power Electronics / Power Management
With appropriate power converter ICs, such as the LTC7897 from Analog Devices, many applications can be suitably powered without having to use complex and cost-intensive transformers.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version