Trench-based low forward voltage Schottky rectifiers offer switching efficiency benefits
December 14, 2011 // Paul Buckley
ON Semiconductor has introduced a family of 100 V Trench-based low forward voltage Schottky rectifiers (LVFR) for applications such as switching power supplies for notebook adapters or flat panel displays, reverse battery protection circuits, and high frequency DC-DC converters.
The NTST30100CTG, NTST20100CTG and NTSB20U100CTG family of devices utilize a trench topology that enables low forward voltage drop and reduced leakage current. This results in low conduction losses and a substantial improvement in circuit efficiency — helping design engineers achieve regulatory requirements without the added complexity, such as synchronous rectification.
This LVFR family utilizes a trench MOS structure that enables an enhanced conduction zone under forward bias, resulting in significant reduction in forward voltage drop. Under reverse bias, this structure creates a “pinch-off” effect resulting in reduced leakage current. Unlike planar Schottky rectifiers, the LVFR's switching performance is strong across their entire operating junction temperature range of -40 to +150 °C.
To demonstrate the advantages of LVFR's, the company compared the performance of its 30 A, 100 V LVFR (NTST30100SG) with a standard 30 A, 100 V planar Schottky rectifier. Data measured in a 65 W power adapter showed a 1% efficiency improvement using LVFR versus planar Schottky.
The increase in efficiency can allow the power supply designer to meet regulatory requirements without the added complexity and cost of solutions, such as synchronous rectification.
For further information: www.onsemi.com.
The engineering desk-to-bench ratio
November 21, 2014
Dennis Feucht discusses the right and wrong, senior and junior ways to organize the theoretical and practical work of an ...
Rohm's European Design Center in growth phase
Combo inertial sensor market on 19% CAGR, says Yole.
US, China pushing industrial chip market growth, says IHS
LA Auto Show: Hydrogen fuel cell drive is back
Opening up the IoT data flood gates
November 21, 2014
Only a few days after their LoRa long range communication demo at electronica, IBM and Semtech are making the LoRa MAC protocol ...
Polarizing filter reduces energy drain from smartphone displays
From warm to cool white: colour-temperature tunable LEDs
System provides high-volume solution for flexible OLED displays
- Halogen-free options and increased performance for terminal blocks
- Wireless Power User Guide
- Secure is the New Smart
- 5 Best Practices for Designing Flexible Test Stations
InterviewFreescale CEO: 'IoT isn't just buzz'
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's CEO Gregg Lowe had every reason to be chipper and lively when EE Times ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Cherry is giving away five of its Energy Harvesting Evaluation kits, worth over 266 Euros each, for EETimes Europe's readers to win. Cherry's energy harvesting technology benefit mostly applications where a complex wire assembly and/or batteries would be inappropriate.
The required RF-energy is created by the mechanical actuation of the switch and the data is transmitted...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.
Most popular news
- Could magnesium battery innovation end lithium's dominance?
- From warm to cool white: colour-temperature tunable LEDs
- Li-Fi communication module wirelessly transfers data at 1-Gbps
- Supercapacitor innovation promises panel-powered cars in five years
- Rebranding the revolution: the future of IoT is embedded