Catalog
100 V 3 A Half Bridge Gate Driver - TTL Inputs
Key Features
- Asymmetrical, low impedance outputs drive 1,000 pF load with 10 ns rise times and 6 ns fall times
- Bootstrap supply max voltage to 118 V DC
- Supply voltage up to 16 V
- Drives high- and low-side N-Channel MOSFETs with independent inputs
- CMOS input thresholds (MIC4103)
- TTL input thresholds (MIC4104)
- On-chip bootstrap diode
- Fast 24 ns propagation times
- Low power consumption
- Supply under-voltage protection
- Typical 2.5 Ω pull up and 1.25 Ω pull down output driver resistance
- -40°C to +125°C junction temperature range
Description
AI
The MIC4103 and MIC4104 are high frequency, 100 V Half Bridge MOSFET drivers with faster turn-off characteristics than the MIC4100 and MIC4101 drivers. They feature fast 24 ns propagation delay times and 6ns driver fall times. The low-side and high-side gate drivers are independently controlled and matched to within 3 ns 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 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 MIC4103/4 helps ensure 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 MIC4103 and MIC4104 are available in an 8-lead SOIC package with a operating junction temperature range of -40°C to +125°C.
