MP6531A

5V - 60V, Three-Phase, Brushless,

DC Motor Pre-Driver

MP6531A Rev. 1.02

www.MonolithicPower.com

1

6/20/2017

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2017 MPS. All Rights Reserved.

DESCRIPTION

The MP6531A is a gate driver IC designed for

three-phase,

brushless,

DC

motor

driver

applications. The MP6531A is capable of

driving three half-bridges consisting of six N-

channel power MOSFETs up to 60V.

The MP6531A uses a bootstrap capacitor to

generate a supply voltage for the high-side

MOSFET

driver.

An

internal

trickle-charge

circuit maintains a sufficient gate driver voltage

at 100% duty cycle.

Internal safety features include programmable

over-current protection (OCP), adjustable dead-

time control, under-voltage lockout (UVLO), and

thermal shutdown.

The MP6531A is available in 28-pin TSSOP-EP

(9.7mmx6.4mm)

and

QFN-28

(4mmx4mm)

packages with exposed thermal pads on the

back.

FEATURES

 Wide 5V to 60V Input Voltage Range

 Bootstrap Gate Driver with Trickle-Charge

Circuit

Supports

100%

Duty

Cycle

Operation

 Low-Power

Sleep

Mode

for

Battery-

Powered Applications

 Programmable Over-Current Protection of

the External MOSFETs

 Adjustable Dead-Time Control to Prevent

Shoot-Through

 Thermal Shutdown and UVLO Protection

 Fault Indication Output

 Thermally

Enhanced

Surface-Mounted

Packages

APPLICATIONS

 Three-Phase, Brushless, DC Motors

 Permanent Magnet Synchronous Motors

 Power Drills

 Impact Drivers

 E-Bikes

All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.

For MPS green status, please visit the MPS website under Quality

Assurance.

“MPS” and “The Future of Analog IC Technology” are registered

trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

CPA

CPB

VREG

VIN

LSS

HA

HB

HC

OC_REF

nFAULT

DT

VIN

MP6531A

0.47µF

Exposed GND

PAD

LA

LB

LC

GLA

GHA

SHA

Phase A

(repeat for B and C)

To Phase B

To Phase C

nSLEEP

GND

BSTA