MIC4100 Datasheet, PDF (1/18 Pages) Micrel Semiconductor – 100V Half Bridge MOSFET Drivers

MIC4100/1
100V Half Bridge MOSFET Drivers
General Description
The MIC4100/1 are high frequency, 100V Half Bridge
MOSFET driver ICs featuring fast 30ns propagation delay
times. The low-side and high-side gate drivers are
independently controlled and matched to within 3ns
typical. The MIC4100 has CMOS input thresholds, and the
MIC4101 has TTL input thresholds. The MIC4100/1
include a high voltage internal diode that charges 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 MIC4100/1 ensures the outputs are not
affected by supply glitches, HS ringing below ground, or
HS slewing with high speed voltage transitions. Under-
voltage protection is provided on both the low-side and
high-side drivers.
The MIC4100 is available in the SOIC-8L package with a
junction operating range from –40°C to +125°C.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
• Bootstrap supply max voltage to 118V DC
• Supply voltage up to 16V
• Drives high- and low-side N-Channel MOSFETs with
independent inputs
• CMOS input thresholds (MIC4100)
• TTL input thresholds (MIC4101)
• On-chip bootstrap diode
• Fast 30ns propagation times
• Drives 1000pF load with 10ns rise and fall times
• Low power consumption
• Supply under-voltage protection
• 3Ω pull up , 3Ω pull down output resistance
• Space saving SOIC-8L package
• –40°C to +125°C junction temperature range
Applications
• High voltage buck converters
• Push-pull converters
• Full- and half-bridge converters
• Active clamp forward converters
___________________________________________________________________________________________________________
Typical Application
9V to 16V Bias
100V Supply
PWM
Controller
VDD
HB
MIC4100
HI _{SO-8 HO}
LI
HS
GND LO
V _OUT
100V Buck Regulator Solution
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel [phone] • fax + 1 [phone] • http://www.micrel.com
March 2006
M9999-031506