MP6537

100V, Three-Phase, BLDC Motor

Pre-Driver with PWM & Enable Inputs

MP6537 Rev. 1.01

www.MonolithicPower.com

1

4/20/2018

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

© 2018 MPS. All Rights Reserved.

DESCRIPTION

The MP6537 is a gate driver IC designed for

three-phase,

brushless

DC

motor

driver

applications. The MP6537 is capable of driving

three half-bridges consisting of six N-channel

power MOSFETs up to 100V.

The MP6537 uses a bootstrap capacitor to

generate a supply voltage for the high-side

MOSFET driver. An internal charge pump

maintains the high-side gate driver if the output

is held high for an extended period of time.

Full protection features include programmable

over-current protection (OCP), adjustable dead-

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

thermal shutdown.

The

MP6537

is

available

in

a

QFN-28

(4mmx5mm) package with an exposed thermal

pad.

FEATURES

 Supports 100V Operation

 120V V

 Internal LDO Supports External NPN for

High-Current Drive Requirements

 Integrated Current-Sense Amplifier

 Low-Power Sleep Mode for Battery-

powered Applications

 Programmable Over-Current Protection

(OCP) of External MOSFETs

 Adjustable Dead-Time Control to Prevent

Shoot-Through

 Thermal Shutdown and Under-Voltage

Lockout (UVLO) Protection

 Fault Indication Output

 Available in a Thermally Enhanced Surface-

Mounted QFN-28 (4mmx5mm) Package

APPLICATIONS

 Three-Phase Brushless DC Motors and

Permanent Magnet Synchronous Motors

 Power Drills

 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

LSS

PWMA

PWMB

PWMC

OCREF

nFAULT

DT

VIN

MP6537

Exposed GND

PAD

ENA

ENB

ENC

GLA

GHA

SHA

Phase A

(repeat for B and C)

To Phase B

To Phase C

CSO

GND

BSTA

VREG

nSLEEP

VIN

LDO