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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCT8317A датащи(PDF) 1 Page - Texas Instruments |
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MCT8317A датащи(HTML) 1 Page - Texas Instruments |
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1 / 161 page  MCT8317A High Speed Sensorless Trapezoidal Control Integrated FET BLDC Driver 1 Features • 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 – Closed loop speed or power control – Configurable profiles for speed or power input reference – Windmilling support through forward resynchronization and reverse drive – Analog, PWM, freq. or I2C based speed input – Configurable motor start-up and stop options – Anti-voltage surge (AVS) protection prevents DC bus voltage spike during motor deceleration – Variable monitoring through DACOUT • 4.5- to 20-V operating voltage (24-V abs max) • High output current capability: 5-A peak • Low MOSFET on-state resistance – RDS(ON) (HS + LS) at TA = 25°C : 130-mΩ • Low power sleep mode – 7-µA (maximum) at VVM = 12-V, TA = 25°C • Speed loop accuracy: 3% with internal clock and 1% with external clock reference • Supports up to 100-kHz PWM frequency for low inductance motor support • Does not require external current sense resistor • Built-in 3.3-V ±5%, 20-mA LDO regulator • Spread spectrum and slew rate for EMI mitigation • Suite of Integrated protection features – Supply under voltage lockout (UVLO) – Motor lock detection (5 different types) – Over current protection (OCP) – Over temperature warning and shutdown (OTW/OTS) – Fault condition indication pin (nFAULT) – Optional fault diagnostics over I2C interface 2 Applications • Brushless-DC (BLDC) Motor Modules • Robotic Vacuum Suction Motors • Server Fans • Appliance Fans and Pumps 3 Description The MCT8317A 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-V brushless-DC motors up to 5-A peak current. The MCT8317A integrates three ½-bridges with 24-V absolute maximum capability and a very low RDS(ON) of 130 mΩ (high-side + low-side FETs). MCT8317A also features an LDO that generates a 3.3-V voltage rail and can source up to 20 mA to power external circuits. Sensorless trapezoidal control is highly configurable through register settings ranging from motor start-up behavior to closed loop operation. Register settings for MCT8317A can be set in non-volatile EEPROM, which allows the device to operate stand-alone once it has been configured. The device receives a speed command through a PWM input, analog voltage, variable frequency square wave or I2C command. There are a large number of protection features integrated into the MCT8317A, intended to protect the device, motor, and system against fault events. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) MCT8317A0I WQFN (36) 5.00 mm × 4.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Documentation for reference: • Refer to the MCT8317A EVM GUI MCT8317A LDO Regulator Integrated Current Sensing EEPROM Sensorless Trap DIRECTION BRAKE I 2C Op onal during opera on for I 2C speed, diagnos cs, or on-the- y con gura on PWM, analog, frequency or commanded over I 2C SPEED FG Speed feecback nFAULT DACOUTx Op onal real- me variable monitoring, 12-bit DAC A B C 4.5 to 20-V (24-V abs max) 5-A peak output current, typically 12-V A LDO out 3.3-V, up to 20-mA Simplified Schematic MCT8317A SLLSFQ2 – JANUARY 2023 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. ADVANCE INFORMATION for preproduction products; subject to change without notice. |
Аналогичный номер детали - MCT8317A |
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Аналогичное описание - MCT8317A |
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