MCT8315A
- 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 I 2C 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
- R DS(ON) (HS + LS) at T A = 25°C : 240-mΩ (typ.)
- Low power sleep mode
- 5-µA (maximum) at V VM = 24-V, T A = 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
- Built-in 3.3-V/5-V, 170-mA buck regulator
- Dedicated DRVOFF pin to disable (Hi-Z) outputs
- Spread spectrum and slew rate for EMI mitigation
- 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 I 2C interface
The MCT8315A provides a single-chip, code-free sensorless trapezoidal solution for customers requiring high speed operation (up to 3 kHz electrical) or very fast start-up time (< 50 ms) for 12- to 24-V brushless-DC motors requiring up to 4-A peak current. The MCT8315A integrates three ½-bridges with 40-V absolute maximum capability and a low R DS(ON) of 240 mΩ (high-side + low-side FETs). MCT8315A integrates power management circuits including an voltage-adjustable buck regulator (3.3 V / 5 V, 170-mA) and LDO (3.3 V, 20 mA) that can be used to power external circuits.
Sensorless trapezoidal control is highly configurable (motor start-up/stop behavior, fault handling, closed loop operation) through register settings in a non-volatile EEPROM, which allows the device to operate stand-alone once it has been configured. The MCT8315A receives a speed command through a PWM signal, analog voltage, variable frequency square wave or I 2C instruction. There are a large number of protection features integrated into the MCT8315A to protect the device, motor, and system against fault events.
Documentation for reference:
- Refer MCT8315A tuning guide
- Refer to the MCT8315A EVM GUI
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | MCT8315A High Speed Sensorless Trapezoidal Control Integrated FET BLDC Driver datasheet (Rev. A) | PDF | HTML | 2023年 4月 14日 |
User guide | MCT8315A Tuning Guide | PDF | HTML | 2023年 1月 4日 | |
Certificate | MCT8315EVM EU RoHS Declaration of Conformity (DoC) | 2022年 12月 21日 | ||
Technical article | How to achieve efficient, reliable and accurate actuation in real-time motor contr | PDF | HTML | 2022年 10月 25日 |
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)。
MCT8315EVM — 適用三相無感測器梯形整合式 MOSFET BLDC 馬達驅動器的 MCT8315 評估模組
MCT8315 具有三個半全橋整合式 MOSFET 驅動器,適用 4.5-V 至 35-V、5-A 尖峰電流驅動之三相無刷 DC (BLDC) 馬達的無感測器梯形控制。MCT8315A 整合降壓穩壓器,可透過可編程穩壓電源支援 200-mA。
此 EVM 包括板載 MSP430、MSP430FR2355,可用做與 MCT8315EVM GUI 的介面。
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RGF) | 40 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點