Használati útmutató Microchip MIC4104
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MIC4103/4104
100V Half-Bridge MOSFET Drivers with
3A/2A Sinking/Sourcing Current
General Description
T--he MIC4103 and MIC4104 are highfrequency, 100V half
bridge MOSFET drivers with faster turnoff characteristics -
than the MIC4100 and MIC4101 drivers. They feature fast
24ns propagation delay times and 6ns driver fall times.
The lowside and highside gate drivers are independently --
controlled and matched to within 3ns (typical). The
MIC4103 has CMOS input thresholds and the MIC4104
has TTL input thresholds. The MIC4103/4 include a high-
voltage internal diode that charges the highside gate drive -
bootstrap capacitor.
A robust, highspeed, and lowpower level shifter provides --
clean level transitions to the highside output. The robust -
operation of the MIC4103/4 ensuresthe 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 MIC4103 and MIC4104 are available in an 8- pin SOIC
package with an operating junction temperature range of
–°° 40C to +125C.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Features
•Asymmetrical, low impedance outputs drive 1000pF
load with 10ns rise times and 6ns fall times
• Bootstrap supply maximum voltage to 118V DC
• Supply voltage up to 16V
•--Drives high and lowside NChannel MOSFETs with
independent inputs
• CMOS input thresholds (MIC4103)
• TTL input thresholds (MIC4104)
•- Onchip bootstrap diode
• Fast 24ns propagation times
• Low power consumption
• Supply undervoltage protection
• ΩΩTypical 2.5 -pullup and 1.25 -pulldown output driver
resistance
•–°° 40C to +125C junction temperature range
Applications
•- Highvoltage buck converters
•- - Fulland halfbridge power topologies
• Active clamp forward converter
• Two switch forward topologies
• Interface to digital controllers
Typical Application
100V Buck Regulator Solution
Micrel Inc. • 2180 Fortune Drive • Jose, CA 95131 • USA • tel +1 (408) 9440800 • fax + 1 (408) 4741000 • San --http://www.micrel.com
November 12, 2014 Revision 3.0
Termékspecifikációk
| Márka: | Microchip |
| Kategória: | nincs kategorizálva |
| Modell: | MIC4104 |
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