MCT8315Z
- 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
- Delay compensation reduces duty cycle distortion
- Suite of integrated protection features
- Supply undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Motor lock protection
- Thermal warning and shutdown (OTW/TSD)
- Fault condition indication pin (nFAULT)
- Optional fault diagnostics over SPI interface
The MCT8315Z provides a single-chip, code-free 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 40-V 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. MCT8315Z provides an output voltage adjustable buck regulator and an LDO that can be used to power external circuits. MCT8315Z integrates three analog hall comparators for position sensing to achieve sensored trapezoidal BLDC motor control. The control scheme is highly configurable through hardware pins or register settings ranging from motor current limiting behavior to advance angle. The speed can be controlled through a PWM input.
A number of protection features including supply undervoltage lockout (UVLO), overvoltage protection (OVP), charge pump undervoltage (CPUV), overcurrent protection (OCP), over-temperature warning (OTW) and over-temperature shutdown (TSD) are integrated into MCT8315Z to protect the device, motor, and system against fault events. Fault conditions are indicated by the nFAULT pin.
Refer Application Information for design consideration and recommendation on device usage.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | MCT8315Z Sensored Trapezoidal Integrated FET BLDC Motor Driver datasheet | PDF | HTML | 2023/12/7 | ||
| 證書 | MCT8315ZEVM EU Declaration of Conformity (DoC) | PDF | HTML | 2023/11/15 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
MCT8315ZEVM — 適用於三相感測式梯形 BLDC 馬達驅動器的 MCT8315Z 評估模組
MCT8315ZEVM-MSP430FR2355-FW — MSP430FR2355 firmware for MCT8315ZEVM compatibility with MCT8315Z GUI
MCT8315Z-GUI — GUI for the MCT8315ZEVM
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RRY) | 32 | Ultra Librarian |