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MC121-Q1

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MC121-Q1

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Rating Automotive Architecture Integrated FET Vs (min) (V) 3.3 Vs ABS (max) (V) 40 Operating temperature range (°C) -40 to 125
Rating Automotive Architecture Integrated FET Vs (min) (V) 3.3 Vs ABS (max) (V) 40 Operating temperature range (°C) -40 to 125
X2SON (DEZ) 6 5 mm² (2.5 mm × 2 mm) SOT-23-THN (DYM) 6 11.02 mm² (2.9 mm × 3.8 mm)
  • AEC-Q100 qualified for automotive applications
    • Temperature Grade-1 : –40°C ≤ TA ≤ 125°C
  • N-channel H-bridge driver with internal Hall sensor
  • RDS(ON): 850mΩ (HS+LS)
  • Current rating
    • Configurable current limit up to 1.21A
    • 0.5A rms (TA = 105oC, RθJA = 100oC/W)
  • Integrated supply (VM) clamp
  • Configurable speed curve and starting duty cycle
  • Commutation schemes: square or soft (up to 90o)
    • Square: maximum torque/speed
    • Soft: optimized speed and acoustics
  • Configurable speed reference input: PWM or DC
    • Input PWM frequency range: 20 Hz to 90 kHz
    • Input DC voltage range: (0-3)V
  • Configurable output PWM frequency: 25 or 50kHz
  • Closed loop speed control accuracy: ±3%
  • PWM dithering to reduce EMI
  • Configurable soft start time
  • Configurable hall offset angle and time
  • Speed output with 0.5x, 1x, 2/3x, or 2x multipliers
  • Rotor lock detection and fault output (RD)
  • Configurable PWM modes
    • Hybrid, synchronous, and asynchronous
  • Auto-demag for high efficiency across speed
  • One-time programming (2 pages) over I2C
  • Protection features
    • Output Overcurrent protection with auto-restart
    • Locked rotor protection (LRP) with auto-restart
    • VM undervoltage lockout (UVLO)
    • VM overvoltage protection (OVP)
    • Thermal shutdown (TSD)
    • Configurable fault retry time
  • Functional features (Opeartion continues)
    • when FG/RD shorts GND
    • when PWM/DC shorts to VM
  • AEC-Q100 qualified for automotive applications
    • Temperature Grade-1 : –40°C ≤ TA ≤ 125°C
  • N-channel H-bridge driver with internal Hall sensor
  • RDS(ON): 850mΩ (HS+LS)
  • Current rating
    • Configurable current limit up to 1.21A
    • 0.5A rms (TA = 105oC, RθJA = 100oC/W)
  • Integrated supply (VM) clamp
  • Configurable speed curve and starting duty cycle
  • Commutation schemes: square or soft (up to 90o)
    • Square: maximum torque/speed
    • Soft: optimized speed and acoustics
  • Configurable speed reference input: PWM or DC
    • Input PWM frequency range: 20 Hz to 90 kHz
    • Input DC voltage range: (0-3)V
  • Configurable output PWM frequency: 25 or 50kHz
  • Closed loop speed control accuracy: ±3%
  • PWM dithering to reduce EMI
  • Configurable soft start time
  • Configurable hall offset angle and time
  • Speed output with 0.5x, 1x, 2/3x, or 2x multipliers
  • Rotor lock detection and fault output (RD)
  • Configurable PWM modes
    • Hybrid, synchronous, and asynchronous
  • Auto-demag for high efficiency across speed
  • One-time programming (2 pages) over I2C
  • Protection features
    • Output Overcurrent protection with auto-restart
    • Locked rotor protection (LRP) with auto-restart
    • VM undervoltage lockout (UVLO)
    • VM overvoltage protection (OVP)
    • Thermal shutdown (TSD)
    • Configurable fault retry time
  • Functional features (Opeartion continues)
    • when FG/RD shorts GND
    • when PWM/DC shorts to VM

The MC121-Q1 is a 40V, 850mΩ rated motor driver with integrated N-channel full-bridge MOSFETs, charge pump, hall sensor, commutation control logic, and protection circuitry for single phase brushless DC motors. The hall sensor provides rotor position information to the commutation logic to maintain continuous rotor motion. The commutation logic can be programmed for square and soft PWM waveforms to reduce acoustic noise or maximize speed/efficiency.

The duty cycle of a pulse-width modulated signal or a (0-3)V DC voltage on the PWM/DC pin controls the motor speed. FG/RD pin can be configured to report the motor speed, a locked rotor condition, or fault to an external controller. The PWM/DC and FG/RD pins can be also configured as an I2C interface to support a programming (OTP) mode to configure the OTP during production.

The MC121-Q1 integrates protection features for motor and device protection. These include supply undervoltage lockout, overvoltage protection, output overcurrent protection, device overtemperature shutdown, and locked rotor protection.

The MC121-Q1 is available in two 6-pin packages: SOT23-THN and X2SON. SOT23-THN is a flat lead package with a maximum height of 1.1mm. X2SON is a non-leaded package with a max. height of 0.4mm.

The MC121-Q1 is a 40V, 850mΩ rated motor driver with integrated N-channel full-bridge MOSFETs, charge pump, hall sensor, commutation control logic, and protection circuitry for single phase brushless DC motors. The hall sensor provides rotor position information to the commutation logic to maintain continuous rotor motion. The commutation logic can be programmed for square and soft PWM waveforms to reduce acoustic noise or maximize speed/efficiency.

The duty cycle of a pulse-width modulated signal or a (0-3)V DC voltage on the PWM/DC pin controls the motor speed. FG/RD pin can be configured to report the motor speed, a locked rotor condition, or fault to an external controller. The PWM/DC and FG/RD pins can be also configured as an I2C interface to support a programming (OTP) mode to configure the OTP during production.

The MC121-Q1 integrates protection features for motor and device protection. These include supply undervoltage lockout, overvoltage protection, output overcurrent protection, device overtemperature shutdown, and locked rotor protection.

The MC121-Q1 is available in two 6-pin packages: SOT23-THN and X2SON. SOT23-THN is a flat lead package with a maximum height of 1.1mm. X2SON is a non-leaded package with a max. height of 0.4mm.
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Evaluation board

MC121EVM — MC121 evaluation module

The MC121EVM enables users to evaluate the performance of the MC121 and MC121-Q1 single phase BLDC driver. The EVM includes an on-board FTDI chip to convert USB communication, from the PC, into UART. An on-board MSP430FR2355 microcontroller (MCU) translates the UART communication into either (...)
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MC121-Q1-SAFETY-DOCS — MC121-Q1 functional safety documents

MC121_Q1_Safety_Documents
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MOTORSTUDIO-1PHASE-GUI — GUI for Single phase BLDC driver

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GUI for evaluation module (EVM)

MOTORSTUDIO-GUI — 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 (...)

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SOT-23-THN (DYM) 6 Ultra Librarian
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