Texas Instruments MCT8315Z
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 ½ -bridges with 40V absolute maximum capability and a low RDS(ON) of 275 mΩ (HS+ LS) to enable high power drive capability. The integrated current limiting feature limits motor currents during start-up or high load conditions while eliminating the need for external sense resistors.FEATURES
● 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 buc...