The AAT4631/AAT4631-1 SmartSwitch from Skyworks are high-power, current limited P-channel MOSFET power switches designed for high-side load switching applications. They operate with inputs ranging from 2,4 V to 5,5 V, making them relevant for both 3 V and 5 V systems.
An integrated current limiting circuit protects the input supply against large currents which may cause the supply to fall out of regulation. Reverse current blocking is provided to protect the load switch from reverse current potentials while the device is shut down. The ICs are also protected from thermal overload which is limited by power dissipation and junction temperatures.
Current limit threshold of the AAT4631 is programmed from 500 mA to 3,1 A with a resistor from SET to ground. The current limit threshold can also be removed to allow up to 3 A continuous and 4 A peak current to flow through the load switch by shorting the SET pin to ground. The current limit response to a sudden short circuit is a mere 1 s which reduces the requirements of local supply bypassing.
An open drain fault flag (FLT) in AAT4631/AAT4631-1 signals an over-current or over-temperature condition after a 5 ms blanking time to prevent false reporting. Quiescent current is a low 10 μA and the supply current decreases to less than 1 μA in shutdown mode.
The ICs are offered in the lead-free, 10-pin TDFN2222-10 package, and are specified for operation over the -40°C to +85°C ambient temperature range.
NVDC power-path control to 1– 6 cell battery systems iCorp Technologies
Power Electronics / Power Management
SG Micro’s SGM41581 is an I2C-controlled narrow voltage direct charging buck boost charge controller designed to simplify robust power delivery in systems that must seamlessly operate from an adapter input or a battery pack.
Read more...Precise, adaptive battery health-monitoring RS South Africa
Power Electronics / Power Management
New fuel gauge solution from Nordic delivers State-of-Health reporting, adaptive battery modelling, and seamless fleet observability via nRF Cloud.
Read more...Compact 6 A automotive buck converter Altron Arrow
Power Electronics / Power Management
Delivering up to 6 A of continuous output current, the DCP0606Y from STMicroelectronics enables efficient regulation of low-voltage rails commonly used in modern vehicle electronics and industrial systems.
Read more...The new role of UPS technology in high-precision automation Omron Electronics
Power Electronics / Power Management
OMRON’s BU_2SW and BU_2RWL series UPS systems are engineered to offer a robust, online type power architecture designed to safeguard sensitive AC powered systems across a wide range of industries.
Read more...Rugged railway-grade DC-DC power modules iCorp Technologies
Power Electronics / Power Management
iCorp Technologies has introduced the AIPUPOWER ZCD100 and ZCD150 Series, a family of rugged DC-DC converters designed to meet the demanding electrical and environmental requirements of railway and transportation systems.
Read more...Four-quadrant regenerative grid simulator Conical Technologies
Power Electronics / Power Management
The IT7900EP series high-performance regenerative grid simulator from ITECH is a full four-quadrant AC grid simulator capable of both sourcing and sinking power.
Read more...90 W PSU with 150% boost capability Brabek
Power Electronics / Power Management
RECOM’s cost effective REFIN2U-S90/CL DIN rail AC/DC boasts a 90 W rating with a boost capability of 150% for 4,5 seconds to allow for surge loads.
Read more...Standalone USB PD controller Future Electronics
Power Electronics / Power Management
The STUSB4531 from STMicroelectronics is a standalone USB Power Delivery sink controller designed to streamline the implementation of USB-C power negotiation in sink devices without requiring a full software stack on a host microcontroller.
Read more...MIL-Spec DC-DC power converters Vepac Electronics
Power Electronics / Power Management
PowerGood has introduced a range of 15 W to 600 W military DC-DC power converters engineered for mission critical defence applications.
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