MPQ6590A-AEC1 7.5-80V High-Side MOSFET Driver QFN-11

MPQ6590A-AEC1 7.5-80V High-Side MOSFET Driver QFN-11

Key Specifications

Features

• 7.5V to 80V Operating Input Voltage (VIN) Range
• Gate Drive Charge Pump Generates Voltage 12V Above VIN
• Low-Power Sleep Mode (<1µA)
• Output Tolerant to -70V
• Under-Voltage Lockout (UVLO)
• Adjustable Drain-to-Source Voltage (VDS) Desaturation Detection
• Thermal Shutdown
• Fault Indication Output
• Available in a QFN-11 (3mmx4mm) Package
• Available in AEC-100 Grade 1

Typical Application Circuit

Applications

• Battery Power Tools

Design Notes

• Set dead time to match the external FET turn-off, not the datasheet typical. Too little risks shoot-through, too much distorts the current waveform at low duty cycle.
• Use a Kelvin connection for the current-sense resistor; shared copper injects switching noise straight into the sense amplifier.
• The thermal pad is the only heat path for most packages — via-stitch it to a ground plane with at least 9 vias.
• PWM frequency trades switching loss against current ripple in the motor inductance; 20 kHz keeps the drive out of the audible band.
• Add a brake or coast path so regeneration during a fast stop does not pump the supply rail.

Common Questions