DESCRIPTION
The MP6546 is a 3-phase brushless DC (BLDC)
motor driver for gimbal applications. It has three
half-bridge power stages, pre-drivers, fieldoriented control (FOC) logic, and angle
calculations. The MP6546 supports linear Hall
angle inputs or an MPS magnetic angle sensor
input. The MP6546 supports multi-slave mode
and allows three-axis gimbals to be connected to
a single I2C interface to reduce the
microcontroller (MCU) load and system cost.
The MP6546 can deliver up to 3A of peak current.
It uses an internal charge pump to generate the
gate drive supply voltage for the high-side
MOSFETs (HS-FETs).
Internal safety features include thermal
shutdown, under-voltage lockout (UVLO), overcurrent protection (OCP), short-circuit protection
(SCP), and over-voltage protection (OVP).
The MP6546 is available in a QFN-20
(3mmx4mm) package with an exposed thermal
pad.

FEATURES
• 3.5V to 22V Operating Supply Voltage
• Three Half-Bridge Drivers
• Up to 1MHz Fast-Mode Plus for I
2C
• Configurable Slave Addresses
• Supports Different Angle Sensor Inputs:
o Linear Hall Sensor Input through HA/HB
o Magnetic Angle Sensor through
SPI/SSC Interface
• Integrated 12-Bit Analog-to-Digital
Converter (ADC) for Hall Sensor
• D-Axis and Q-Axis Voltage Loop with FieldOriented Control (FOC)
• Standby Mode to Save Quiescent Current
• Under-Voltage Lockout (UVLO), Thermal
Shutdown (TSD), Over-Current Protection
(OCP), Short-Circuit Protection (SCP), and
Over-Voltage Protection (OVP)
• One-Time Programmable (OTP) Memory
• Available in a QFN-20 (3mmx4mm)
Package

APPLICATIONS
• Gimbals
• Three-Phase Brushless DC (BLDC) Motors