Product category:
Discrete Power Devices
News Release from: Vishay Siliconix | Subject: SiC714CD10 and SiC711CD10
Edited by the Electronicstalk Editorial
Team on 24 January 2006
Fast switching MOSFETs take drivers
onboard
Two new high-speed convertor solutions integrate the control MOSFET, the synchronous MOSFET, and driver circuit in a low-profile, high-performance PowerPAK MLF 10x10 package.
Two new high-speed convertor solutions integrate the control MOSFET, the synchronous MOSFET, and driver circuit in a low-profile, high-performance PowerPAK MLF 10x10 package The new products simplify the single and multiphase DC/DC design process and provide 3% higher efficiency compared with discrete solutions
This article was originally published on Electronicstalk on 17 Jun 2003 at 8.00am (UK)
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Novel power package reduces MOSFET on-resistance
Siliconix has released 14 industry-leading PowerPAK power MOSFETs featuring improved package technology that yields lower on-resistance devices.
Drivers integrate MOSFETs with drive circuitry
Five new Little Foot Plus driver products are designed to simplify the use of N-channel MOSFETs in high-frequency buck regulators.
Intended for applications in servers, routers, point-of-load (POL) convertors, and 3.3, 5 and 12V intermediate bus architecture environments, the new devices not only conserve board space and power, but also enable higher power ratings in a compact footprint.
The integration of the MOSFETs and driver serves to minimise the parasitic leakage inductance that can cause ringing and spikes at the switching node.
The SiC714CD10 and SiC711CD10 can be used along with any PWM IC or ASIC to produce a highly efficient buck convertor.
A low-side MOSFET control pin enables prebiased startup, which prevents an undesirable sinking current from a pre-charged output capacitor from causing problems, particularly in POL and server applications.
The new SiC714CD10, rated for input voltages from 3.3 to 16V, delivers up to 27A of continuous output current in still air and is optimised for a 10% duty ratio.
Typical on-resistance values are 3mohm for the low-side and 10.2mohm for the high-side MOSFET.
Vishay's SiC711CD10 is rated for input voltages from 3.3 to 16V and a 40% duty ratio, and it provides continuous output current up to 25A.
Typical on-resistance values are 4mohm for both the high- and low-side MOSFETs.
Both devices are optimised for 12V to logic level conversion and are rated for a switching frequency range of 100kHz to greater than 1MHz.
Their PowerPAK MLF 10x10 package provides low thermal impedance, and its simple pad geometries enable straightforward board layout and assembly.
Break-before-make operation provides "shoot-through" immunity and minimises dead time.
These devices also feature undervoltage lockout and a turn-on/turn-off capability.
An internal bootstrap diode further reduces the number of external components required.
Samples and production quantities of the new fast-switching MOSFETs with integrated driver are available now, with lead times of 12 weeks for larger orders.
Pricing for US delivery in 100,000-piece quantities is $2.00.
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