MPQ18021HN-A 2.5A Half-Bridge Gate Driver AEC-Q100 Qualified SOIC

MPQ18021HN-A 2.5A Half-Bridge Gate Driver AEC-Q100 Qualified SOIC

The MPQ18021HN-A is a high-frequency, 100V, half-bridge, N-channel power MOSFET driver.

Key Specifications

Features

• Guaranteed Industrial / Automotive Temperature Range Limits
• Drives N-Channel MOSFET Half-Bridge
• 100V VBST Voltage Range
• On-Chip Bootstrap Diode
• Typical 16ns Propagation Delay Time
• Less than 5ns Gate Drive Matching
• Drives 1nf Load with 12ns/9ns Rise/Fall Times with 12V VDD
• TTL-Compatible Input
• Less than 160μA Quiescent Current
• UVLO for both High-Side and Low-Side

Applications

• Car DC/DC Power Systems

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