MIC4103/4104
100V Half-Bridge MOSFET Drivers with
3A/2A Sinking/Sourcing Current General Description Features The MIC4103 and MIC4104 are high-frequency, 100V halfbridge MOSFET drivers with faster turn-off characteristics
than the MIC4100 and MIC4101 drivers. They feature fast
24ns propagation delay times and 6ns driver fall times.
The low-side and high-side 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 highvoltage internal diode that charges the high-side gate drive
bootstrap capacitor. 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 low-side N-Channel MOSFETs with
independent inputs CMOS input thresholds (MIC4103) TTL input thresholds (MIC4104) On-chip bootstrap diode Fast 24ns propagation times Low power consumption Supply undervoltage protection Typical 2.5Ω pull-up and 1.25Ω pull-down output driver
resistance –40°C to +125°C junction temperature range A robust, high-speed, and low-power level shifter provides
clean level transitions to the high-side output. The robust
operation of the MIC4103/4 ensures 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 MIC4103 and MIC4104 are available in an 8-pin SOIC
package with an operating junction temperature range of
–40°C to +125°C.
Datasheets and support documentation are available on …
