MP6619L 2.5-28V, 5A H-Bridge Motor Driver QFN-19

MP6619L 2.5-28V, 5A H-Bridge Motor Driver QFN-19

Key Specifications

Features

• Wide 2.5V to 28V Operating Input Voltage (VIN) Range
• Up to 5A Peak Output Current (IOUT)
• Compliance with 3.3V and 5V Systems
• Internal H-Bridge Driver
• Configurable Current Limit
• 65mΩ On Resistance (RDS(ON)) for Each Half-Bridge MOSFET with 5V VCC
• 100% Duty Cycle Operation of H-Bridge
• 1μA Shutdown Mode
• Over-Current Protection (OCP)
• VIN Over-Voltage Protection (OVP)

Typical Application Circuit

Applications

• DC Motors

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