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Data Sheet
MCF8315C-Q1
Sensorless Field Oriented Control (FOC)
Integrated FET BLDC Driver
1 Features
- Three-phase BLDC motor driver with integrated sensorless motor control algorithm
- Code-free Field Oriented Control (FOC)
- Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)
- 5-point configurable speed profile support
- Windmilling support through forward resynchronization and reverse drive
- Analog, PWM, freq. or I2C based speed input
- Configurable motor start-up and stop options
- Anti-voltage surge (AVS) protection
- Improved acoustic performance with automatic dead time compensation
- Variable monitoring through DACOUT pin
- 4.5 to 35V operating voltage (40V abs max)
- High output current capability: 4-A peak
- Low MOSFET on-state resistance
- RGF: RDS(ON)(H+L) at TJ=25°C: 240mΩ(typ.)
- RRY: RDS(ON)(H+L) at TJ=25°C: 250mΩ(typ.)
- PWP: RDS(ON)(H+L) at TJ=25°C: 265mΩ(typ.)
- Low power sleep mode: Refer Table 6-7
- 5µA (maximum) at VVM = 24V, TA = 25°C
- Speed loop accuracy: 3% with internal clock and 1% with external clock reference
- Customer-configurable non-volatile memory (EEPROM) to store device configuration
- Supports up to 60-kHz PWM frequency for low inductance motor support
- Does not require external current sense resistors; uses built-in current sensing
- Built-in 3.3V, 20mA LDO regulator
- Built-in 3.3V/5V, 170mA buck regulator
- Dedicated DRVOFF pin to disable (Hi-Z) outputs
- Spread spectrum and slew rate for EMI mitigation
- A suite of integrated protection features
- Supply under voltage lockout (UVLO)
- Supply over voltage protection (OVP)
- Motor lock detection (5 different types)
- Over current protection (OCP)
- Thermal warning and shutdown (OTW/TSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over I2C interface
