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MIC4605-1YM-TR
1 A Half Bridge MOSFET Gate Driver
The MIC4605 is an 85 V half-bridge MOSFET gate driver that features adaptive-dead-time and shoot-through protection. The adaptive-dead-time circuitry actively monitors the half-bridge outputs to minimize the time between high-side and low-side MOSFET transitions, thus maximizing power efficiency. Anti-shoot-through circuitry prevents erroneous inputs and noise from turning both MOSFETS on at the same time. The MIC4605 also offers a wide 5.5 V to 16 V operating supply range to maximize system efficiency. The low 5.5 V operating voltage allows longer run times in battery-powered applications. Additionally, the MIC4605’s adjustable gate drive sets the gate drive voltage to VDD for optimal MOSFET RDS(ON), which minimizes power loss due to the MOSFET’s RDS(ON). The MIC4605 is available in an 8-pin SOIC package and a tiny 10-pin 2.5 × 2.5 mm TDFN package. Both packages have an operating junction temperature range of -40°C to +125°C
Product Features
5.5 V to 16 V gate drive supply voltage range
Advanced adaptive-dead-time
Intelligent shoot-through protection
MIC4605-1: Dual TTL inputs
MIC4605-2: Single PWM input
Enable input for on/off control
On-chip bootstrap diode
Fast 35 ns propagation times
Drives 1,000 pF load with 20 ns rise and fall times
Low power consumption: 135 µA quiescent current
Separate high and low-side under voltage protection
–40°C to +125°C junction temperature range