Product category: Discrete Power Devices
News Release from: ON Semiconductor | Subject: NUD3048
Edited by the Electronicstalk Editorial Team on 25 June 2004
Beefed-up MOSFET is
versatile switching device
The NUD3048 is a highly integrated N-channel MOSFET featuring a breakdown voltage of 100V and a buffered gate voltage rating of 100V for use in -48V bus distribution power systems
The NUD3048 is a highly integrated N-channel MOSFET featuring a breakdown voltage of 100V and a buffered gate voltage rating of 100V for use in telecomms, datacomms or any -48V bus distribution power system applications. This versatile device is the first integrated MOSFET in the industry capable of functioning as a level shifter, a power good signal and an inrush limiter.
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Additionally, it can be used as a relay drive circuit.
ON Semiconductor has taken an industry standard 2N7002x small signal 60V MOSFET and supercharged it into a 100V breakdown voltage N-channel MOSFET - creating a highly versatile switching device ideal for a wider range of communications applications.
A gate-to-source zener clamp, ESD protection diodes and 100kohm gate resistor have been integrated into the device - eliminating the need for many of the discrete components commonly required to support a 2N7002x MOSFET, shortening the bill of materials list and reducing PC board space usage.
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The NUD3048 is offered in a TSOP6 package for several reasons.
First, its small size conserves board space and allows maximum board density.
Secondly, the package enables external connections to both sides of the 100kohm integrated gate resistor - enabling a designer to add a gate capacitor to delay turn-on of this device and still meet the timing requirements.
Additionally, the TSOP6 packaging - with 0.72ohm maximum on resistance - enables the device to handle approximately five times the continuous current of the industry standard 2N7002.
This in turn allows the device to be used in a wider range of communications applications.
The NUD3048 is available in a TSOP6 priced at $0.17 per unit in 10,000 unit quantities.
Samples can be ordered online.
The NUD3048 is a complementary device with the NIS5101 Smart HotPlug designed to allow safe insertion and removal of electronic equipment to -48V backplanes.
While the NIS5101 limits inrush current during initial charging of input capacitors, the NUD3048 is used to send a logic signal to turn on the DC/DC convertor load when its input capacitors are safely charged.
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