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Micrel Semiconductor - 85V Half Bridge MOSFET Drivers

Numéro de référence MIC4604
Description 85V Half Bridge MOSFET Drivers
Fabricant Micrel Semiconductor 
Logo Micrel Semiconductor 





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MIC4604 fiche technique
MIC4604
85V Half Bridge MOSFET Drivers with up to
16V Programmable Gate Drive
General Description
The MIC4604 is an 85V Half Bridge MOSFET driver. The
MIC4604 features fast 39ns propagation delay times and
20ns driver rise/fall times for a 1nF capacitive load. The
low-side and high-side gate drivers are independently
controlled. The MIC4604 has TTL input thresholds. It
includes a high-voltage internal diode that helps charge
the high-side gate drive bootstrap capacitor.
A robust, high-speed, and low-power level shifter provides
clean level transitions to the high-side output. The robust
operation of the MIC4604 ensures that the outputs are not
affected by supply glitches, HS ringing below ground, or
HS slewing with high-speed voltage transitions.
Undervoltage protection is provided on both the low-side
and high-side drivers.
The MIC4604 is available in an 8-pin SOIC package and a
tiny 10-pin 2.5mm × 2.5mm TDFN package. Both
packages have an operating junction temperature range of
–40°C to +125°C.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Features
5.5V to 16V gate drive supply voltage range.
Drives high-side and low-side N-Channel MOSFETs
with independent inputs
TTL input thresholds
On chip bootstrap diode
Fast 39ns propagation times
Drives 1000pF load with 20ns rise and fall times
Low power consumption
Supplies undervoltage protection
–40°C to +125°C junction temperature range
Applications
Power inverters
High-voltage step-down regulators
Half, full and 3-phase bridge motor drives
Distributed power systems
Computing peripherals
Typical Application
Motor Door Lock Solution
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
June 25, 2013
Revision 1.0

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