The MIC4103 is a 100V half-bridge MOSFET driver with independent high-side and low-side outputs, designed to drive N-channel MOSFETs in high-voltage applications such as buck converters and full-bridge topologies. It features a CMOS input threshold, an on-chip bootstrap diode, and a maximum bootstrap supply voltage of 118V DC. The device operates with a supply voltage range of 9V to 16V and maintains a junction temperature range of -40°C to +125°C. It is housed in an 8-pin SOIC package and provides 24ns typical propagation delay, 10ns rise time, and 6ns fall time with a 1000pF load. The outputs have peak sink currents of 3A and peak source currents of 2A, with typical output resistances of 2.5Ω pull-up and 1.25Ω pull-down. Undervoltage protection is included on both high-side and low-side drivers.
The MIC4103 and MIC4104 are high frequency, 100V Half Bridge 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 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.
Additional Features
| Microchip Technology, Inc. | |
|---|---|
| Product Category | Metal-Oxide Semiconductor FET (MOSFET) |
| Product Number | MIC4103 |
| Product Name | 100V Half Bridge MOSFET Driver |
