Features
Power_electronics Features

BEV advancements are driving sales, but vehicle safety and reliability will ensure long-term viability
Innovative power architectures using power modules provide power redundancy and improve overall safety and system performance By Patrick Kowalyk, Automotive FAE,Vicor
More details...
AC/DC power factor correction module offers up to 1,512W
A full brick package developed by TDK-Lambda, the PF1500B-360, is for high voltage distributed power architectures
More details...
Power Electronics Europe News
 
Integrated power switches reduce space in wearable devices
The SLG59M1730C, SLG59M1736C and SLG59M1735C are offered in wafer level chip scale packaging (WLCSP) and combine the company’s FET IP and system-level protection.

They address PCB-space-constrained, high-performance applications in tablet PC, smartphones and fitness band markets, says the company, covering high-side power control applications from 1.0 to 4.0A.

For smartphone and fitness band applications, the 0.64mm2 (0.8 x 0.8mm) SLG59M1730C (33mΩ/1.0A) and the SLG59M1736C (33mΩ/2.2A) are low-leakage, self-powered pFET IPSs that can operate from 2.5 to 5.5V supply voltages. Both offer low-threshold on/off control, fast output voltage discharge, and a novel, controlled input current profile on start-up. The controlled 16.5 mA inrush current profile on start-up, in the SLG59M1730C/SLG59M1736C prevents Li-Ion battery voltage sag when Bluetooth radios or other high current-demand operations are enabled. When compared to other four-ball WLCSPs available, with fast, fixed output voltage rise times, the magnitude of the in-rush current, which is directly proportional to the load capacitor value - can be large. If the resultant in-rush current is large enough to cause the Li-Ion battery voltage to sag, an inadvertent system reset can result. The controlled in-rush current attribute prevents unintended system resets from occurring, says the company.

For tablet PC applications, the SLG59M1735C is a 10.5mΩ/4.0A nFET IPS, powered from 2.5 to 5.5V supplies. The input voltage range extends down to 0.9V to accommodate 1.0V high-current rails found in FPGA, ASIC, and processor power sequencing applications. The SLG59M1735C features on/off control, soft-start control, under-voltage detection, and two-level current-limit protection. When compared to other packaged products in the company’s GFET3 portfolio with similar features, the 1.5mm2 SLG59M1735C is a 50% smaller footprint. When compared to other 4.0A WLCSP/DFN products in the market with similar protection features, the SLG59M1735C is a 14 to 32% smaller footprint.

 

 



View PDF
 
Go Back   
Newsletter sign up

Sponsors