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Part No.	MSK4362HU
Manufacturer	MSK
Size	409 Kbytes
Pages	8 pages
Description	30 AMP, 75V, 3 PHASE MOSFET BRUSHLESS MOTOR CONTROLLER

Datasheet Summary with AI

Document Overview:

This document describes the MSK 3462 motor controller, detailing its pin functions, operational characteristics, and various configuration options. It's targeted at engineers working with motor control systems.

1. Pin Functions & Control Signals

️· Power & Voltage:
- Accepts a motor bus voltage (V+) – Higher voltages may require dropping resistors.
️· Current Control:
- CURRENT COMMAND (+/-): Differential inputs for current control. Scaled at ±3 amps per volt. Max command voltage: ±10V (max 30 amps).
- CURRENT MONITOR: Provides a current viewing signal, scaled at ±3 amps per volt (max 30 amps).
️· Commutation & Hall Sensors:
- HALL A, B, C: Inputs from Hall sensors in the motor.
- 60/120-: Selects commutation scheme (60/300 degree or 120/240 degree). Internally pulled high.
️· Safety & Disable:
- BRAKE: Commands a braking mode, rapidly decelerating the motor. Pulled low for normal operation, pulled high for braking.
- DIS: Disables the output bridge. Pulled high for disable, pulled low for enable.
️· Synchronization:
- CLOCK SYNC: Input for synchronizing to an external clock.
- REFOUT: Provides a regulated 6.25V output for powering Hall devices.

2. Operational Characteristics & Configuration

️· Commutation Table: Provides a detailed truth table for selecting commutation sequences based on Hall sensor states and command signals.
️· Power Dissipation:
- Internal regulators (+15V & -15V) contribute to power dissipation.
- Efficiency of the -15V regulator is 50%.
- Dropping resistors can be used to reduce power dissipation when using higher bus voltages.
️· Variable Speed Operation: By varying Clock speed the motor speed can be varied, but must remain within limits to prevent damage.

3. Key Parameters & Values

️· Motor Bus Voltage (V+): Varies, but higher voltages require adjustments.
️· Current Control Scaling: ±3 amps/volt
️· Maximum Command Voltage: ±10V
️· Maximum Motor Current: 30 amps
️· COMMUTATION schemes: 60/300 degree or 120/240 degree.
️· Regulator Efficiency: 50% (-15V)
️· REFOUT Voltage: 6.25V
️· REFOUT Current: 15mA