MP6610 4-55V, 3A Half-Bridge Power Driver TSOT23

MP6610 4-55V, 3A Half-Bridge Power Driver TSOT23

The MP6610 is a half-bridge driver with current measurement and regulation features.

Key Specifications

Features

• Wide 4V to 55V Operating Input Voltage
• Up to 3A Output Current
• Internal Half-Bridge Driver
• Cycle-by-Cycle Current Limiting and Regulation
• Low On Resistance: o 100mΩ High-Side MOSFET (HS-FET) o 120mΩ Low-Side MOSFET (LS-FET)
• No Control Power Supply Required
• Simple, Versatile Logic Interfaces
• Inputs Compatible with 2.5V, 3.3V, and 5V Logic
• Open-Load Detection (OLD), Over-Current Protection (OCP), Under-Voltage Lockout (UVLO), and Thermal Shutdown
• Fault Indication Output

Typical Application Circuit

Applications

• Solenoid Drivers
• Relay Drivers

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