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MIC5018 Datasheet(PDF) 1 Page - Microchip Technology |
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MIC5018 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 20 page  2021 Microchip Technology Inc. and its subsidiaries DS20006631A-page 1 MIC5018 Features • +2.7V to +9V Operation • 150 μA Typical Supply Current at 5V Supply • ≤1 μA Typical Standby (Off) Current • Charge Pump for High-Side Low-Voltage Applications • Internal Zener Diode Gate-to-Ground MOSFET Protection • Operates in Low- and High-Side Configurations • TTL Compatible Input • ESD Protected Applications • Battery Conservation • Power Bus Switching • Solenoid and Motion Control • Lamp Control Package Type General Description The MIC5018 high-side MOSFET driver is designed to switch an N-channel enhancement-type MOSFET from a TTL compatible control signal in high- or low-side switch applications. This driver features the tiny 4-lead SOT-143 package. The MIC5018 is powered from a +2.7V to +9V supply and features extremely low off-state supply current. An internal charge pump drives the gate output higher than the driver supply voltage and can sustain the gate voltage indefinitely. An internal Zener diode limits the gate-to-source voltage to a safe level for standard N-channel MOSFETs. In high-side configurations, the source voltage of the MOSFET approaches the supply voltage when switched on. To keep the MOSFET turned on, the MIC5018’s output drives the MOSFET gate voltage higher than the supply voltage. In a typical high-side configuration, the driver is powered from the load supply voltage. Under some conditions, the MIC5018 and MOSFET can switch a load voltage that is slightly higher than the driver supply voltage. In a low-side configuration, the driver can control a MOSFET that switches any voltage up to the rating of the MOSFET. The gate output voltage is higher than the typical 3.3V or 5V logic supply and can fully enhance a standard MOSFET. The MIC5018 is available in the SOT-143 package and is rated for –40°C to +85°C ambient temperature range. SOT-143 (M4) Early production identification: MH10 MIC5018 High-Side MOSFET Driver |
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