Power Supplies

Infineon has introduced an automotive current sensor IC, available in four pre-programmed current ranges: 25, 50, 75 or 120A. Called TLE4971, they are “ideal for on-board chargers, high-voltage auxiliary drives and charging applications”, according to the company. “Additionally, the sensor is also ideal for industrial applications including dc chargers for electric vehicles, industrial drives, servo drives and photovoltaic inverters.” Inside, ...

Renesas is aiming at powering automotive cameras with an ISO-26262 compliant multi-rail regulator IC – qualified to AEC-Q100 Grade 1. RAA271082 has a primary high voltage synchronous buck regulator, two secondary low voltage synchronous buck regulators and a low voltage LDO regulator. It offers four over-voltage and under-voltage monitors, I2C communications, a configurable general-purpose open-drain I/O pin and a dedicated ...

NGK Insulators, Ltd. (NGK) will exhibit at electronica 2022 at Hall B.430 under the theme of “Making smart society more comfortable by contributing to digital society with ceramic technology.” The company is expecting to discuss further collaboration opportunities with engineers and partners. NGK will show demonstrations of IoT device power supply, EnerCera® and unique ceramic technologies such as gallium nitride ...

Advanced Linear Devices has introduced an IC that will balance four supercapacitors connected in series – to help prevent any of them being damaged by over-volting as they charge. Like other balance ICs in the company’s range, it does not use op-amps and a voltage reference. Instead it has four precision-trimmed mosfets that act as shunt regulators when connected gate-to-drain. ...

Recom is aiming at what it calls ‘cost-sensitive’ medical, industrial and IT applications with 130W open-frame ac-dc power supplies. “Safety certifications include 2MOPP/250Vac medical for ‘B’ or ‘BF’ applications to IEC/EN/ANSI/AAMI ES 60601-1, as well as IEC/EN 62368-1, IEC/EN 60335-1 and IEC/EN 61558-1 for industrial, test and measurement, IT and household use, all to 4000m altitude,” it said, adding: “EN ...

PFD7 is a family of 950V super-junction mosfets from Infineon, that can achieve 450mΩ Rds(on) in DPAK or 60mΩ in TO247. Gate-source threshold voltage is 3±0.5V. “Due to the low threshold voltage and tolerance, linear mode operation is avoided while allowing lower driving voltage and reduced idle loss,” according to the company. “By integrating a fast body diode with low ...

Microchip is aiming at smart metering with a family of microcontrollers and a power-line communication modem IC. The processors, nominally the PIC32CXMT family, have one or two Arm Cortex-M4F cores – all get a 200MHz application processor, and some get a 240MHz metrology processing core. The PIC32CXMTSH version in particular (see diagram) gets an ‘energy metering analogue front-end’ (EMAFE) as ...

Rohm is introducing 300mA automotive-grade LDO regulators in a 2.9 x 2.8mm surface-mount package for driver assistance sensors. The BUxxJA3DG-C series can accept input voltages up to 6V and outputs 1.2, 1.8, 2.5, 3.0 or 3.3V depending on version, with drop-out voltage below 370mV (except 500mV for 1.2V version, table below). Rohm pointed out the possibility of regulating a 1.2V ...

Electronic component distributor, TTI Europe, has acquired Ecopac (UK) Power which was established in 1995 to supply external power supplies, led driver and led power supplies. The UK and Ireland distributor is an authorised distributor for Mean Well, EU Chips and Vox Power. In addition to ac-dc power supplies ranging from 1.0W-20,000W, open frame, chassis- or PCB-mount, encapsulated, rack mount, ...

P-Duke has introduced 50W open-frame ac-dc power supplies with a 3 x 1.5inch footprint. “TAD50 series delivers 50W continuous output power,” according distributor Luso Electronics, which is promoting the PSU. “In addition, a peak power function is available that enables the power supply to deliver up to 140% of rated output power for 5s.” The universal input covers 85 – ...