ZHCSOU8B August 2021 – February 2022 MCT8316A
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Output Stage
- 8.3.2 Device Interface Modes
- 8.3.3 Step-Down Mixed-Mode Buck Regulator
- 8.3.4 AVDD Linear Voltage Regulator
- 8.3.5 Charge Pump
- 8.3.6 Slew Rate Control
- 8.3.7 Cross Conduction (Dead Time)
- 8.3.8 SPEED Control
- 8.3.9 Starting the Motor Under Different Initial Conditions
- 8.3.10 Motor Start Sequence (MSS)
- 8.3.11 Closed Loop Operation
- 8.3.12 Speed Loop (Available only in MCT8316AV)
- 8.3.13 Input Power Regulation (Available only in MCT8316AV)
- 8.3.14 Anti-Voltage Surge (AVS)
- 8.3.15 Output PWM Switching Frequency
- 8.3.16 Fast Start-up (< 50 ms)
- 8.3.17 Fast Deceleration
- 8.3.18 Active Demagnetization
- 8.3.19 Motor Stop Options
- 8.3.20 FG Configuration
- 8.3.21
Protections
- 8.3.21.1 VM Supply Undervoltage Lockout
- 8.3.21.2 AVDD Undervoltage Lockout (AVDD_UV)
- 8.3.21.3 BUCK Undervoltage Lockout (BUCK_UV)
- 8.3.21.4 VCP Charge Pump Undervoltage Lockout (CPUV)
- 8.3.21.5 Overvoltage Protection (OVP)
- 8.3.21.6 Overcurrent Protection (OCP)
- 8.3.21.7 Buck Overcurrent Protection
- 8.3.21.8
Cycle-by-Cycle (CBC) Current Limit (CBC_ILIMIT)
- 8.3.21.8.1 CBC_ILIMIT Automatic Recovery next PWM Cycle (CBC_ILIMIT_MODE = 000xb)
- 8.3.21.8.2 CBC_ILIMIT Automatic Recovery Threshold Based (CBC_ILIMIT_MODE = 001xb)
- 8.3.21.8.3 CBC_ILIMIT Automatic Recovery after 'n' PWM Cycles (CBC_ILIMIT_MODE = 010xb)
- 8.3.21.8.4 CBC_ILIMIT Report Only (CBC_ILIMIT_MODE = 0110b)
- 8.3.21.8.5 CBC_ILIMIT Disabled (CBC_ILIMIT_MODE = 0111b or 1xxxb)
- 8.3.21.9 Lock Detection Current Limit (LOCK_ILIMIT)
- 8.3.21.10 Thermal Warning (OTW)
- 8.3.21.11 Thermal Shutdown (TSD)
- 8.3.21.12 Motor Lock (MTR_LCK)
- 8.3.21.13 Motor Lock Detection
- 8.3.21.14 IPD Faults
- 8.4 Device Functional Modes
- 8.5 External Interface
- 8.6 EEPROM access and I2C interface
- 8.7 EEPROM (Non-Volatile) Register Map
- 8.8 RAM (Volatile) Register Map
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RGF|40
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RGF|40
訂購信息
3 說明
MCT8316A 為需要高速運(yùn)行（高達(dá) 3kHz 電氣）或極快啟動(dòng)速度（< 50ms）的客戶提供了一個(gè)單芯片無代碼無傳感器梯形解決方案，此解決方案適用于峰值電流高達(dá) 8A 的 12V 至 24V 無刷直流電機(jī)。MCT8316A 集成了三個(gè) 1/2H 橋，具有 40V 的絕對(duì)最大電壓和 95mΩ 的超低 RDS(ON)（高側(cè) + 低側(cè)）?？烧{(diào)降壓穩(wěn)壓器和 LDO 的電源管理系列能夠?yàn)槠骷?3.3V 或 5.0V 電壓軌，可用于為外部電路供電。
無傳感器梯形控制功能具有很高的可配置性，通過寄存器設(shè)置 (MCT8316AV) 或硬件引腳 (MCT8316AT) 完成，范圍從電機(jī)啟動(dòng)行為到閉環(huán)運(yùn)行。MCT8316AV 的寄存器設(shè)置可在非易失性 EEPROM 中設(shè)置，從而允許器件在配置后獨(dú)立運(yùn)行。該器件通過 PWM 輸入、模擬電壓、可變頻率方波或 I2C 命令接收速度命令。MCT8316A 集成多種保護(hù)特性，旨在出現(xiàn)故障事件時(shí)保護(hù)該器件、電機(jī)和系統(tǒng)。
器件信息(1)
| 器件型號(hào) | 封裝 | 封裝尺寸（標(biāo)稱值） |
|---|---|---|
| MCT8316A1V | VQFN (40) | 7.00mm x 5.00mm |
| MCT8316A1T | VQFN (40) | 7.00mm × 5.00mm |
(1) 如需了解所有可用封裝，請(qǐng)參閱數(shù)據(jù)表末尾的可訂購產(chǎn)品附錄。
參考文檔：
- 請(qǐng)參閱 E2E 常見問題解答中的闡釋。
- 請(qǐng)參閱 MCT8316A 調(diào)優(yōu)指南
- 請(qǐng)參閱 MCT8316A EVM GUI
簡(jiǎn)化版原理圖