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MCF8315C

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40V max, 4A peak, sensorless field-oriented control (FOC) three-phase BLDC motor driver

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Data sheet

MCF8315C

ACTIVE
Data sheet Order now

Product details

Rating Catalog Architecture Integrated FET Control topology Field-oriented control (FOC), Sensorless Control interface 1xPWM, Analog, Serial Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Features 5-point configurable speed profile support, Anti-voltage surge protections prevents overvoltage, Code-free Field Oriented Control (FOC), Configurable motor startup and stop options, Improved acoustic performance with automatic dead time compensation, Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET), Variable monitoring through DACOUT, Windmilling support through forward resynchronization and reverse drive Operating temperature range (°C) -40 to 125
Rating Catalog Architecture Integrated FET Control topology Field-oriented control (FOC), Sensorless Control interface 1xPWM, Analog, Serial Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Features 5-point configurable speed profile support, Anti-voltage surge protections prevents overvoltage, Code-free Field Oriented Control (FOC), Configurable motor startup and stop options, Improved acoustic performance with automatic dead time compensation, Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET), Variable monitoring through DACOUT, Windmilling support through forward resynchronization and reverse drive Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4 WQFN (RRY) 32 24 mm² 6 x 4
  • Three-phase BLDC motor driver with integrated sensorless motor control algorithm
    • Code-free Field Oriented Control (FOC)
    • Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)
    • 5-point configurable speed profile support
    • 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
    • Improved acoustic performance with automatic dead time compensation
    • Variable monitoring through DACOUT pin
  • 4.5 to 35V operating voltage (40V abs max)
  • High (peak) output current capability: 4A (RRY), 3.5A (PWP)
  • Low MOSFET on-state resistance
    • RRY: RDS(ON)(H+L) at TJ=25°C: 250mΩ(typ.)
    • PWP: RDS(ON)(H+L) at TJ=25°C: 265mΩ(typ.)
  • Low power sleep mode: Refer
    • 5µA (maximum) at VVM = 24V, TA = 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 60-kHz PWM frequency for low inductance motor support
  • Does not require external current sense resistors; uses built-in current sensing
  • Built-in 3.3V, 20mA LDO regulator
  • Built-in 3.3V/5V, 170mA buck regulator
  • Dedicated DRVOFF pin to disable (Hi-Z) outputs
  • Spread spectrum and slew rate for EMI mitigation
  • A 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 I2C interface
  • Three-phase BLDC motor driver with integrated sensorless motor control algorithm
    • Code-free Field Oriented Control (FOC)
    • Offline motor parameters measurement with Motor Parameter Extraction Tool (MPET)
    • 5-point configurable speed profile support
    • 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
    • Improved acoustic performance with automatic dead time compensation
    • Variable monitoring through DACOUT pin
  • 4.5 to 35V operating voltage (40V abs max)
  • High (peak) output current capability: 4A (RRY), 3.5A (PWP)
  • Low MOSFET on-state resistance
    • RRY: RDS(ON)(H+L) at TJ=25°C: 250mΩ(typ.)
    • PWP: RDS(ON)(H+L) at TJ=25°C: 265mΩ(typ.)
  • Low power sleep mode: Refer
    • 5µA (maximum) at VVM = 24V, TA = 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 60-kHz PWM frequency for low inductance motor support
  • Does not require external current sense resistors; uses built-in current sensing
  • Built-in 3.3V, 20mA LDO regulator
  • Built-in 3.3V/5V, 170mA buck regulator
  • Dedicated DRVOFF pin to disable (Hi-Z) outputs
  • Spread spectrum and slew rate for EMI mitigation
  • A 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 I2C interface

The MCF8315C provides a single-chip, code-free sensorless FOC solution for customers driving speed-controlled 12 to 24V brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM) up to 4A peak current. The MCF8315C integrates three ½-bridges with 40V absolute maximum capability and a low RDS(ON) of 250/265mΩ (high-side + low-side FETs). MCF8315C integrates power management circuits including a voltage-adjustable buck regulator (3.3V/5V, 170mA) and LDO (3.3V/20mA) that can be used to power external circuits.

The FOC algorithm configuration can be stored 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 MCF8315C, intended to protect the device, motor, and system against fault events.

MCF8315C is available in two packages: 32-pin 6x4mm wettable-flank QFN (RRY) and 24-pin 7.8x6.4mm HTSSOP (PWP).

The MCF8315C provides a single-chip, code-free sensorless FOC solution for customers driving speed-controlled 12 to 24V brushless-DC motors (BLDC) or Permanent Magnet Synchronous motor (PMSM) up to 4A peak current. The MCF8315C integrates three ½-bridges with 40V absolute maximum capability and a low RDS(ON) of 250/265mΩ (high-side + low-side FETs). MCF8315C integrates power management circuits including a voltage-adjustable buck regulator (3.3V/5V, 170mA) and LDO (3.3V/20mA) that can be used to power external circuits.

The FOC algorithm configuration can be stored 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 MCF8315C, intended to protect the device, motor, and system against fault events.

MCF8315C is available in two packages: 32-pin 6x4mm wettable-flank QFN (RRY) and 24-pin 7.8x6.4mm HTSSOP (PWP).
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Technical documentation

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Type Title Date
* Data sheet MCF8315C Sensorless Field Oriented Control (FOC) Integrated FET BLDC Driver datasheet (Rev. A) PDF | HTML 10 Jul 2024
Application note PCB Design Guidelines for MCF8316C and MCF8315C PDF | HTML 21 Aug 2024
Certificate MCF8315PWPEVM EU Declaration of Conformity (DoC) 20 Jun 2024

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

MCF8315EVM — MCF8315 evaluation module for three-phase sensorless FOC integrated MOSFET BLDC motor driver

The MCF8315 has three half-H-bridge integrated MOSFET drivers for sensorless FOC control of a three-phase brushless DC (BLDC) motor for 4.5-V to 35-V,  5-A peak current drive. The MCx8315 integrates a buck regulator that can support 200-mA with programmable regulated supply.

EVM includes an (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

MCF8315PWPEVM — MCF8315C evaluation module for 24-pin HTSSOP

The MCF8315C evaluation module for the 24-pin HTSSOP (PWP) package. The MCF8315 is a 4.5-V to 35-V, 4-A peak, sensorless FOC, integrated FET, three-phase BLDC motor driver IC. This EVM allows quick evaluation and configuration of the MCF8315 device to tailor to your BLDC motor application.

User guide: PDF | HTML
Not available on TI.com
Evaluation board

MCF8315RRYEVM — MCF8315 evaluation module 32-pin WQFN (RRY) package

The MCF8315 evaluation module (EVM) allows users to evaluate the performance of a MCF8315 motor driver in the 32-pin WQFN (RRY) package. The EVM includes an onboard FTDI chip to convert USB communication, from the micro-USB connector, into UART. An onboard MSP430FR2355 microcontroller (MCU) (...)

User guide: PDF | HTML
Not available on TI.com
GUI for evaluation module (EVM)

MOTORSTUDIO — Motor Studio GUI for tuning and evaluating BLDC motor drivers

Motor Studio is an easy-to-use graphical user interface (GUI) that simplifies the tuning process of our brushless DC (BLDC) motor drivers to reduce device evaluation and product development time. The GUI allows users to quickly spin up their motors and optimize various stages of motor operation to (...)

Supported products & hardware

Supported products & hardware

Products
Integrated control BLDC drivers
MCF8316A — 40-V max, 8-A peak, sensorless FOC control 3-phase BLDC motor driver MCF8315A — 40-V max, 4-A peak, sensorless FOC control three-phase BLDC motor driver MCF8329A — 60-V, sensorless, field-oriented control (FOC) three-phase BLDC gate driver MCF8316C-Q1 — Automotive, 40-V max, 8-A peak, sensorless field oriented control (FOC) 3-phase BLDC motor driver MCF8315C — 40V max, 4A peak, sensorless field-oriented control (FOC) three-phase BLDC motor driver MCF8315C-Q1 — Automotive, 40V max, 4A peak, sensorless field-oriented control (FOC) three-phase BLDC motor driver
Hardware development
Evaluation board
MCF8316AEVM — MCF8316A three-phase sensorless FOC BLDC motor driver evaluation module MCF8315EVM — MCF8315 evaluation module for three-phase sensorless FOC integrated MOSFET BLDC motor driver MCF8329EVM — MCF8329 evaluation module for 60-V, sensorless FOC three-phase BLDC gate driver MCF8315PWPEVM — MCF8315C evaluation module for 24-pin HTSSOP
Download options
Reference designs

TIDA-010951 — 24V, 35W sensorless FOC BLDC reference design with 85 to 265VAC, 0.92PF single-stage PFC

For achieving energy efficiency, ceiling and ventilation fans are moving from simple AC induction motors to brushless DC (BLDC) motors. This reference design meets these challenges of higher efficiency and power factor by using a universal main power-supply input from 85 to 265VAC with a single (...)
Design guide: PDF
Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 24 Ultra Librarian
WQFN (RRY) 32 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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