Micrel lancerer nye MOSFET drivere

Micrel lancerer nye low-side MOSFET drivere i ultrakompakt fire-pin pakning sam nye high-side N-kanals MOSFET drivere med integreret charge pump i samme pakningstype (in english).

- Our customers need optimal efficiency at every level. These new low-side MOSFET drivers deliver, starting with what may be the smallest package available - a 4-pin Thin QFN package.  To this we’ve added a sufficiently wide supply voltage range that addresses 5V, 12V and 15V power buses, high drive current capability, faster MOSFET switching speeds and lower thermal resistance - all to allow faster frequency of operation.  We’ve even provided both a non-inverting (MIC4414) and an inverting (MIC4415) version of the driver to eliminate the need for extra components,notes Brian Hedayati, marketing vice president for the analog division at Micrel.  
          
The MIC4414/15 series features a tiny 4-pin 1.2mm x 1.2mm thin QFN package and a 4.5 to 18V operating supply voltage range.  It can sink and source peak currents up to 1.5A (3.5? output resistance at 18V and 9 Ohm output resistance at 5V) and is capable of switching a 1000pF load in 12ns. Operating at a low steady-state supply current, the devices feature 77µA control input low and 445 µA control input high.  The device operates at -40C to +125C-degrees junction temperature range. 

http://www.samplecomponents.com/scripts/samplecenter.dll?micrel.

High-side N-channel MOSFET driver with integrated charge pump

Micrel has also introduced the MIC5019, a tiny high-side MOSFET driver with integrated charge pump designed to switch an N-Channel enhancement-mode MOSFET in high-side switch applications. 

The device is ideal for load switches, solenoid drivers and motor driver applications.  The MIC5019 is currently available in volume, and pricing starts at $0.48 for 1K quantity. 
- In many high-side configurations, it is critical that the MOSFET remain turned on even as the source voltage approaches the supply voltage, notes Brian Hedayati, marketing vice president for the analog division at Micrel. 
- Micrel’s MIC5019 MOSFET driver accomplishes this utilizing its internal charge pump to drive the MOSFET gate voltage higher than the supply voltage.
          
The MIC5019features a tiny 4-pin 1.2mm x 1.2mm thin QFN package and a 2.7 - 9V supply voltage range.  It offers a 16V gate drive at VDD = 9V and an 8V gate drive at VDD = 2.7V.  Operating in low- and high-side configurations, it has a 150µA typical supply current at VDD = 5V and <1µA shutdown supply current.  The device operates at -40C to +125C-degrees junction temperature range. 

http://www.samplecomponents.com/scripts/samplecenter.dll?micrel.