MP6527 5.5-40V, 0.8A Half-Bridge Motor Driver TSSOP-28

MP6527 5.5-40V, 0.8A Half-Bridge Motor Driver TSSOP-28

The MP6527 is a ten-channel, half-bridge DMOS output driver with integrated power MOSFETs.

Key Specifications

Features

• Wide 5.5V to 40V Operating Input Voltage (VIN) Range
• High-Side MOSFETs (HS-FETs) and Low- Side MOSFETs (LS-FETs) Connected in Half-Bridge Configurations
• Up to 0.8A Output Current (IOUT)
• Typical 1.3Ω HS-FET and LS-FET RDS(ON)
• Low Quiescent Current (IQ) in Standby Mode
• Short-Circuit Protection (SCP)
• Over-Temperature Protection (OTP)
• Under-Voltage Lockout (UVLO) and Over- Voltage Lockout (OVLO) Protection
• Serial Data Interface
• Diagnostic Functions: o Shorted Output o Open-Load Detection o Over-Temperature (OT) o Over-Voltage (OV) o Under-Voltage (UV)

Typical Application Circuit

Applications

• Automotive and Industrial Applications

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