MCT8315A
Overview
- Three-phase BLDC motor driver with integrated sensorless motor control algorithm - Code-free high speed Trapezoidal Control - Supports up to 3 kHz (electrical frequency) - Very fast start-up time (< 50 ms) - Fast Deceleration (< 150 ms) - Supports 120° or 150° modulation to improve acoustic performance - Windmilling support through forward resynchronization and reverse drive - Analog, PWM, freq. or I2C based speed input - Active Demagnetization to reduce power losses - Configurable motor start-up and stop options - Closed speed/power loop options - Anti-voltage surge (AVS) protection prevents DC bus voltage spike during motor deceleration
- 4.5- to 35-V operating voltage (40-V abs max)
- High output current capability: 4-A peak
- Low MOSFET on-state resistance - RDS(ON) (HS + LS) at TA = 25°C : 240-mΩ (typ.)
- Low power sleep mode - 5-µA (maximum) at VVM = 24-V, 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 100-kHz PWM frequency for low inductance motor support
- Does not require external current sense resistors; uses built-in current sensing
- Built-in 3.3-V, 20-mA LDO regulator
