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MPS EV6631B-L-00A Manual

35v, 3a peak phase current, 3-phase bldc motor driver evaluation board
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DESCRIPTION
The EV6631B-L-00A is an evaluation board
designed to demonstrate the capabilities of the
MP6631B, a 3-phase brushless DC (BLDC)
motor driver with integrated power MOSFETs.
The MP6631B drives a 3-phase BLDC motor
with 1 or 3 external Hall sensors. It can achieve
a peak phase current up to 3A across the 3.6V
to 35V input voltage (V
The MP6631B controls the motor speed
through the pulse-width modulation (PWM)
signal, or through the DC signal on the
PWM/DC pin. The device provides closed-loop
and
open-loop
control
configurable speed curve function. The device
also features a sinusoidal drive for maximum
PERFORMANCE SUMMARY
Specifications are at T
A
Parameters
Input voltage (V
) range
IN
Maximum output phase current (I
Input PWM frequency
Switching frequency (f
SW
EV6631B-L-00A Rev. 1.0
5/8/2024
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
) range.
IN
and
a
built-in,
= 25°C, unless otherwise noted.
Conditions
)
V
= 5V to 35V
OUT
IN
)
MonolithicPower.com
© 2024 MPS. All Rights Reserved.
EV6631B-L-00A
35V, 3A Peak Phase Current,
3-Phase BLDC Motor Driver
torque, as well as low speed ripple and noise
across the entire speed range.
The MPQ6631B features rotational speed
detection. The rotational speed detector (the
FG/RD pin) is an open-drain output. FG/RD
outputs a high or low voltage relative to the Hall
sensor comparator's output. In addition to
rotational speed detection, the direction is
controlled via the DIR pin's input.
Protection features include input over-voltage
protection (OVP), under-voltage lockout (UVLO),
locked-rotor protection, over-current protection
(OCP), and thermal shutdown.
The MP6631B is available in a QFN-26
(3mmx4mm) package.
Evaluation Board
Value
5V to 35V
3A
1kHz to 100kHz
25kHz
1

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Summary of Contents for MPS EV6631B-L-00A

  • Page 1 Maximum output phase current (I = 5V to 35V Input PWM frequency 1kHz to 100kHz Switching frequency (f 25kHz EV6631B-L-00A Rev. 1.0 MonolithicPower.com 5/8/2024 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2024 MPS. All Rights Reserved.

  • Page 2: Evaluation Board

    EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD EVALUATION BOARD LxWxH (7cmx7cmx2.2cm) Board Number MPS IC Number EV6631B-L-00A MP6631BGL-0000 EV6631B-L-00A Rev. 1.0 MonolithicPower.com 5/8/2024 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2024 MPS. All Rights Reserved.
  • Page 3 EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD QUICK START GUIDE Quick Start Using the Communication Interface (MPS Fan Driver Communication Kit): 1. Preset the DC power supply, then turn off the power supply. 2. Connect the power supply output terminals to (see Figure 1): a.
  • Page 4 Figure 2: EVB Connection without the Communication Kit The Hall Connection The EV6631B-L-00A supports either a Hall IC (logic polarity input) or a Hall element (differential input) as the Hall input signal. Figure 3 shows the Hall IC that outputs a logic polarity signal.
  • Page 5 EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD Hall IC Connection 1. Connect CN3 (5V) to the Hall IC’s supply terminal. 2. Connect CN3 (GND) to the Hall IC’s ground. 3. Connect the CN3 terminals (HA+, HB+, and HC+) to their corresponding terminals in the Hall IC’s output.

  • Page 6: General Settings

    EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD GUI Operation Guide 1. Install the MP6631B GUI. 2. Double-click “MP6631B.exe” to start the GUI. The first page of the GUI should show the features and typical application circuit (see Figure 7).
  • Page 7 EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD Figure 8: MPS BLDC Virtual Bench General Settings Page Click “Test Mode” to enter the test mode interface. EV6631B-L-00A Rev. 1.0 MonolithicPower.com 5/8/2024 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

  • Page 8: Evaluation Board Schematic

    EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD EVALUATION BOARD SCHEMATIC FG/RD OUTC OUTC IN_PSU 100kΩ OUTB OUTB OUTB 10kΩ 10kΩ 470µF/50V OUTB OUTA OUTA OUTA 10kΩ MP6631B OUTA PWM/ DC AGND 1nF/50V IN_FAN IN_FAN 2x2 Jumper 10µF/50V...

  • Page 9: Value Description

    EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD EV6631B-L-00A BILL OF MATERIALS Value Description Package Manufacturer Manufacturer PN Electrolytic capacitor, 470μF Wurth 860020675022 50V, 470μF C2, C6, Ceramic capacitor, 50V, 0402 Murata GCM155R71H102KA37D Ceramic capacitor, 50V, C3, C9...
  • Page 10 EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD EVB TEST RESULTS Performance curves and waveforms are tested on the evaluation board, V = 12V, PWM frequency = 20kHz, with 1 or 3 external Hall sensors, unless otherwise noted.
  • Page 11 EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD EVB TEST RESULTS (continued) Performance curves and waveforms are tested on the evaluation board, V = 12V, PWM frequency = 20kHz, with 1 or 3 external Hall sensors, unless otherwise noted.
  • Page 12 EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD EVB TEST RESULTS (continued) Performance curves and waveforms are tested on the evaluation board, V = 12V, PWM frequency = 20kHz, with 1 or 3 external Hall sensors, unless otherwise noted.

  • Page 13: Pcb Layout

    EV6631B-L-00A – 35V, 3A PEAK, 3-PHASE BLDC MOTOR DRIVER EVAL BOARD PCB LAYOUT Figure 10: Top Silk Figure 11: Top Layer Figure 12: Bottom Layer Figure 13: Bottom Silk EV6631B-L-00A Rev. 1.0 MonolithicPower.com 5/8/2024 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

  • Page 14: Revision History

    5/8/2024 Initial Release Notice: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third-party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications.

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