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MIC4605 Datasheet(PDF) 1 Page - Microchip Technology |
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MIC4605 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 34 page  2018-2019 Microchip Technology Inc. DS20005853E-page 1 MIC4605 Features • 5.5V to 16V 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 1000 pF Load with 20 ns Rise and Fall Times • Low-Power Consumption: 135 µA Quiescent Current • Separate High-Side and Low-Side Undervoltage Protection • -40°C to +125°C Junction Temperature Range • AEC-Q100 Qualified for the SOIC Package Applications •Fans • Power Inverters • High-Voltage Step-Down Regulators • Half, Full and 3-Phase Bridge Motor Drives • Appliances •E-Bikes • Automotive Applications General Description The MIC4605 is an 85V half-bridge MOSFET 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. Shoot-through protection circuitry prevents erroneous inputs and noise from turning both MOSFETS on at the same time. The MIC4605 also offers a wide 5.5V to 16V operating supply range to maximize system efficiency. The low 5.5V operating voltage allows longer run times in battery-powered applications. Additionally, the MIC4605 device’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 mm x 2.5 mm TDFN package. Both packages have an operating junction temperature range of -40°C to +125°C. Typical Application Circuit μC MIC4605 M HB HO HS LO MIC4605 HB HO HS LO HI LI V DD HI LI V DD 5.5V-85V MIC28511 V OUT V IN 12V MCP1826 V OUT V IN 3.3V MIC4605 DC Motor Driver Application 85V Half-Bridge MOSFET Driver with Adaptive Dead Time and Shoot-Through Protection |
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