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.
Dark clouds over lighting business: Osram announces massive job cuts
July 30, 2014
Amidst the decline of conventional illuminants like incandescent bulbs and fluorescent tubes, lighting manufacturer Osram ...
Trillion Sensor Summit program set for Munich
IoT: sensor fusion or confusion?
Next-gen HiFi competition takes place in the car
Rohde & Schwarz acquires IT security company
Pure lithium anode promises more efficient rechargeable batteries
July 29, 2014
Researchers at Stanford University claim to have designed a pure lithium anode that could lead to the prospect of smaller, ...
Is a room temperature superconductor possible?
High-temperature superconductivity discovery paves way for energy superhighways
BMW invoke fast battery chargers to spark EV sales
- New Linear Regulators Solve Old Problems
- Testing GPS with a Simulator
- DSM presents: Select the best plastic for DDR4
- Dual 13A μModule Regulator with Digital Interface for Remote Monitoring & Control of Power
InterviewCEO interview: China, not Apple, is way to go, says mCube CEO
Ben Lee, CEO of MEMS startup mCube, explains why he wants to spend $37 million on being a supplier of sensors to Chinese ODMs and avoiding a design win with Apple or Samsung.
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, Altium Ltd is offering EETimes Europe's readers the chance to win one TASKING VX-Toolset for ARM Cortex-M Premium Edition, normally licensed for 2.395 Euros, for ultra-rapid prototyping and code development around ARM Cortex-M based microcontrollers.
The VX-toolset for ARM is the first TASKING compiler suite to receive the Software Platform technology, which is seamlessly...Read more
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.