MCT8315Z
Overview
The MCT8315Z provides a single-chip, codefree sensored trapezoidal solution for customers driving 12-V/24-V brushless-DC motors; no external microcontroller is needed to spin the BLDC motor. The MCT8315Z integrates three.
- Three-phase BLDC motor driver with integrated Sensored Trapezoidal control - Hall sensor based trapezoidal (120°) commutation - Supports analog or digital hall inputs - Configurable PWM modulation: synchronous/ asynchronous - Cycle-by-cycle current limit to limit phase current - Supports up to 200-kHz PWM frequency - Active demagnetization to reduce power losses
- 4.5-V to 35-V operating voltage (40-V abs max)
- High output current capability: 4-A Peak
- Low MOSFET on-state resistance - 275-mΩ (typ.) RDS(ON) (HS + LS) at TA = 25°C
- Low power sleep mode - 2.5-µA (max.) at VVM = 24-V, TA = 25°C
- Integrated current limiting eliminates external current sense resistors
- Flexible device configuration options - MCT8315ZR: 5-MHz 16-bit SPI interface for device configuration and fault status - MCT8315ZH: Hardware pin based configuration with buck - MCT8315ZT: Hardware pin based configuration without buck
- Supports 1.8-V, 3.3-V and 5-V logic inputs
- Built-in 3.3-V/5-V, 200-mA buck regulator
- Built-in 3.3-V, 30-mA LDO regulator
