Microchip | MIC5015YM

MIC5015YM and MIC5014 MOSFET drivers are designed for gate control of N-channel, enhancement-mode, power MOSFETs used as high-side or low-side switches. The MIC5014/5 can sustain an on-state output indefinitely.

The MIC5014/5 operates from a 2.75 V to 30 V supply. In high-side configurations, the driver can control MOSFETs that switch loads of up to 30 V. In low-side configurations, with separate supplies, the maximum switched voltage is limited only by the MOSFET. The MIC5014/5 has a TTL compatible control input. The MIC5014 is noninverting while the MIC5015 is inverting.

The MIC5014/5 features an internal charge pump that can sustain a gate voltage greater than the available supply voltage. The driver is capable of turning on a logic-level MOSFET from a 2.75 V supply or a standard MOSFET from a 5 V supply. The gate-to-source output voltage is internally limited to approximately 15 V. The MIC5014/5 is protected against automotive load dump, reversed battery, and inductive load spikes of –20 V. The driver’s overvoltage shutdown feature turns off the external MOSFET at approximately 35 V to protect the load against power supply excursions. The MIC5014 is an improved pin-for-pin compatible replacement in many MIC5011 applications. The MIC5014/5 is available in plastic 8-pin DIP and 8-pin SOIC pacakges.

Key Features:

• 2.75 V to 30 V operation.
• 100 µA maximum supply current (5 V supply).
• 15 µA typical off-state current.
• Internal charge pump.
• TTL compatible input.
• Withstands 60 V transient (load dump).
• Reverse battery protected to –20 V.
• Inductive spike protected to –20 V.
• Overvoltage shutdown at 35 V.
• Internal 15 V gate protection.
• Minimum external parts. Operates in high-side or low-side configurations.
• 1 µA control input pull-off.
• Inverting and noninverting versions.

Applications:

• Automotive electrical load control.
• Battery-powered computer power management.
• Lamp control.
• Heater control.
• Motor control.
• Power bus switching.