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reference designMPQ6634-AEC1 | Demoboard EVQ6634-LTE-00A

Monolithic Power Systems MPQ6634-AEC1 | Demoboard EVQ6634-LTE-00A

35V, 2A Peak, 3-Phase, Sensorless BLDC Motor Driver Evaluation Board, AEC-Q100 Qualified

Overview

TopologyMotor Drive
Input voltage4.5-35 V
IC revision1.0

Description

The EVQ6634-LTE-00A is an evaluation board designed to demonstrate the capabilities of the MPQ6634-AEC1, a 3-phase, sensorless brushless DC (BLDC) motor driver with integrated power MOSFETs. The MPQ6634-AEC1 provides sensorless field-oriented control (FOC) to achieve improved efficiency and low vibration with up to 2A of peak current. The input voltage (VIN) range is between 4.5V and 35V.The MPQ6634-AEC1 controls the motor speed through the pulse-width modulation (PWM) signal with a 50Hz to 20kHz PWM input frequency. The device supports DC input speed control. It also provides closed-/open-loop speed control and a built-in configurable speed curve function.The MPQ6634-AEC1 provides rotational speed detection. The rotational speed detector (the FG/RD pin) is an open-drain output. In addition to rotation speed detection, the direction is controlled via the DIR pin input.Rich protections include input over-voltage protection (OVP), under-voltage lockout (UVLO), locked-rotor protection, phase-loss protection (PLOS), over-current protection (OCP), and thermal shutdown protection (TSD).The MPQ6634-AEC1 is available in a TQFN-12 (3mmx4mm) package with wettable flanks, and it is available in AEC-Q100 Grade 1.

Features

  • 4.5V to 35V Operating Input Voltage (VIN) Range
  • Up to Maximum 2A of Peak Current
  • Sensorless Field-Oriented Control (FOC)
  • Integrated MOSFETs: High-Side MOSFET (HS-FET) + Low-Side MOSFET (LS-FET) = 450mΩ
  • Supports 0V to 3.3V DC Input or 50Hz to 20kHz Pulse-Width Modulation (PWM) Input
  • Starting Duty Cycle Set with Hysteresis
  • Curve Configurations
  • Configurable Speed for Open-Loop and Closed-Loop Control
  • Configurable Soft-Start Time
  • Configurable Alignment Time
  • Direction Control
  • Power-Saving Mode
  • 24kHz PWM Output Frequency
  • Short-Circuit Protection (SCP)
  • Over-Voltage Protection (OVP)
  • Phase-Loss Protection (PLOS)
  • Locked-Rotor Protection
  • Selectable FG and RD Outputs
  • Available in a TQFN-12 (3mmx4mm) Package with Wettable Flank
  • Available in AEC-Q100 Grade 1

Typical applications

  • General Fans
  • Automotive Fans
  • Small-Sized Motors

More information

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885012206052
SPECWCAP-CSGP MLCCs 16 V(DC), 1 µF, ±10%
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 16 V(DC)
Capacitance1 µF
Capacitance±10% 
Rated Voltage16 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor10 %
Insulation Resistance0.1 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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