MPS EVQ6541A-QK-00A Manuale utente

EVQ6541A-QK-00A

40V, 8A, Three-Phase BLDC Motor Driver

with High-Side and Low-Side Logic Inputs

Evaluation Board

EVQ6541A-QK-00A Rev. 1.0 MonolithicPower.com 1

5/10/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

DESCRIPTION

The EVQ6541A-QK-00A is an evaluation board

designed to demonstrate the capabilities of the

MPQ6541A, a three-phase brushless DC

(BLDC) motor driver. It operates from a wide

4.75V to 40V input voltage range.

The MPQ6541A has three integrated half-

bridges consisting of six N-channel power

MOSFETs. The rotor position information is

provided by the Hall sensors assembled in the

motor. The driver control signals are generated

via an external controller, such a microcontroller

unit (MCU) or field-programmable gate array

(FPGA).

The MPQ6541A is available in a QFN-26

(6mmx6mm) package.

ELECTRICAL SPECIFICATIONS

Parameter Symbol Value Units

Input voltage VIN 4.75 to 40 V

Maximum output

current IOUT_MAX 8 A

Reference voltage VREF 3.3 or 5 V

Logic input voltage V3P3 3.3 or 5 V

FEATURES

 Wide 4.75V to 40V Operating Input Range

 Integrated Bidirectional Current-Sense

Amplifiers

 Supports 100% Duty Cycle Operation

 High-Side (HS) and Low-Side (LS) Logic

Inputs

 Over-Current Protection (OCP) and Over-

Temperature Protection (OTP)

 Fault Indication

APPLICATIONS

 Three-Phase Brushless DC (BLDC) Motors

 Permanent Magnet Synchronous Motors

(PMSMs)

 Power Drills

 Impact Drivers

ll MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website unde

Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

EVQ6541A-QK-00A EVALUATION BOARD

LxW (5.08cmx5.08cm)

Board Number MPS IC Number

EVQ6541A-QK-00A MPQ6541AGQKTE

EVQ6541A-QK-00A – 40V, 8A, HS/LS INPUTS, 3-PHASE BLDC DRIVER EVAL BOARD

EVQ6541A-QK-00A Rev. 1.0 MonolithicPower.com 2

5/10/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

QUICK START GUIDE

1. Preset the power supply between 4.75V and 40V, then turn off the power supply.

2. Connect the power supply terminals to:

a. Positive (+): VIN

b. Negative (-): GND

3. Switch SW1 to position 1 (left) to turn the motor driver on.

4. Apply a 3.3V or 5V constant voltage to the 3P3 pin.

5. To set the current-sense output reference voltage (VREF), apply a 3.3V or 5V constant voltage to the

VREF pin.

6. Connect the motor driver’s Hall signals to the Hall sensor connector.

7. Connect the driver control signals (generated by the external controller) to the CN2 connector.

8. After making the connections, turn on the power supply.

EVQ6541A-QK-00A – 40V, 8A, HS/LS INPUTS, 3-PHASE BLDC DRIVER EVAL BOARD

EVQ6541A-QK-00A Rev. 1.0 MonolithicPower.com 3

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EVALUATION BOARD SCHEMATIC

HSA

HSB

HSC

LSA

LSB

LSC

GND

3P3

GND

1μF/25VC2

SOC

SOB

SOA

499Ω

LED

VIN VIN_ GND

GND

3P3 3P3_GND

GND

VREF VREF_GND

VREF

GND

SB SC

LSA

LSB

LSC

HSA

HSB

HSC

GND

SOA

SOB SOC

SOB

SOC

GND GND

CN 1

NFAULT

NSLEEP

NFAULT NSLEE P

NFAULT

NSLEEP

CN 2

Hall Sens or

GND

3P3

1kΩ

CP 2

CP 1

3P3

GND

1 2

GND

VCP

JP1

1kΩ

R1 0

1kΩ

R1 1

NFAULT

NSLEEP

LSA

LSB

LSC

HSA

HSB

HSC

LSS

SOC 17

GND 18

VCP 19

CP1 20

LSS

VG 14

SOA 15

SOB 16

CP2 21

SC 22

VIN 23

SB 24

SA 26

VIN 25

MPQ6541A

100nF/100V

2 1

4.7μF/2 5V

2 1

100nF/5 0V

2 1

100nF/5 0V

4.7μF/100V

GND

470μF/100V

4.7μF/1 00V

4.7μF/100V

4.99kΩ

SOA SOB SOC

GND

4.99kΩ

REF

Figure 1: Evaluation Board Schematic

EVQ6541A-QK-00A – 40V, 8A, HS/LS INPUTS, 3-PHASE BLDC DRIVER EVAL BOARD

EVQ6541A-QK-00A Rev. 1.0 MonolithicPower.com 4

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EVQ6541A-QK-00A BILL OF MATERIALS

Qty Ref Value Description Package Manufacturer Manufacturer PN

1 R1 499Ω Film resistor, 1% 0603 Yageo RC0603FR-07499RL

6 R2, R3, R4,

R5, R6, R7 4.99kΩ Film resistor, 1% 0603 Yageo RC0603FR-074K99L

3 R9, R10,

R11 1kΩ Film resistor, 1% 0603 Yageo RC0603FR-071KL

1 C1 100nF Ceramic capacitor,

100V, X7R 0805 Murata GRM21BR72A104KAC4L

1 C2 1µF Ceramic capacitor,

25V, X7R 0603 Murata GRM188R71E105KA12D

1 C3 470µF Electrolytic capacitor,

100V DIP Jianghai CD263-100V470

1 C4 4.7µF Ceramic capacitor,

25V, X6S 0603 Murata GRM188C81E475KE11D

3 C5, C6, C7 4.7µF Ceramic capacitor,

100V, X8L 1210 Murata GCM32DL8EL475KE07L

2 C8, C9 100nF Ceramic capacitor,

50V, X7R 0603 Murata GCJ188R71H104KA12D

1 LED 2.6V Red LED 0805 Baihong BL-HUE35A-AV-TRB

1 SW 12VDC SPDT button DIP Wurth 450301014042

1 U1 MPQ6541A Three-phase BLDC

motor driver

QFN-26

(6mmx

6mm)

MPS MPQ6541AGQKTE

1 D1 NS

1 CN1 2.54mm 3-bit connector DIP Any

1 CN2 2.54mm 10-bit connector DIP Any

1 Hall sensor 2.54mm 5-bit connector DIP Any

1 CP1, CP2,

VCP 2.54mm 3-bit connector DIP Any

1 JP1 2mm 2-bit connector DIP Any

1 JP1 2mm 2-bit short jumper DIP Any

NFAULT,

NSLEEP,

SOA, SOB,

SOC, VG

1mm Yellow test point DIP Any

2 VIN,

VIN_GND 2mm Connector, 2mm

needle DIP Any

3P3,

3P3_GND,

SA, SB, SC,

VREF,

VREF_GND

1mm Connector, 1mm

needle DIP Any

EVQ6541A-QK-00A – 40V, 8A, HS/LS INPUTS, 3-PHASE BLDC DRIVER EVAL BOARD

EVQ6541A-QK-00A Rev. 1.0 MonolithicPower.com 5

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PCB LAYOUT

Figure 2: Top Silk

Figure 3: Top Layer

Figure 4: Bottom Layer

Figure 5: Bottom Silk

EVQ6541A-QK-00A – 40V, 8A, HS/LS INPUTS, 3-PHASE BLDC DRIVER EVAL BOARD

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.

EVQ6541A-QK-00A Rev. 1.0 MonolithicPower.com 6

5/10/2021 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

REVISION HISTORY

Revision # Revision Date Description Pages Updated

1.0 5/10/2021 Initial Release -

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