DESCRIPTION

The MPQ6541-AEC1 and MPQ6541A-AEC1

are three-phase brushless DC (BLDC) motor

drivers with three integrated half-bridges. The

three half-bridges consist of six N-channel

power MOSFETs. The MPQ6541-AEC1 and

MPQ6541A-AEC1 also integrate six pre-drivers,

two gate driver power supplies, and three

current-sense amplifiers.

The MPQ6541-AEC1 has ENBL and PWM

inputs for each half-bridge; the MPQ6541AAEC1 has separate high-side (HS) and low-side

(LS) inputs. Otherwise, these parts are identical.

References to the MPQ6541-AEC1 also apply

to the MPQ6541A-AEC1, unless otherwise

noted.

The MPQ6541-AEC1 can deliver up to 12A of

peak current for 1 second, or 8A of continuous

current, depending on thermal and PCB

conditions. The device uses an internal charge

pump to generate the gate driver supply voltage

for the high-side MOSFETs (HS-FETs), and a

trickle charge circuit that maintains sufficient

gate driver voltage to operate at 100% duty

cycle.

Internal safety features include thermal

shutdown, under-voltage lockout (UVLO), and

over-current protection (OCP).

The MPQ6541-AEC1 is available in a TQFN-26

(6mmx6mm) package.

FEATURES

• 4.75V to 40V Operating Supply Voltage

• Three Integrated Half-Bridge Drivers

• 8A of Continuous Output Current

• MOSFET On Resistance: 15mΩ per FET

• MPQ6541-AEC1: PWM and ENBL Inputs

MPQ6541A-AEC1: HS and LS Inputs

• Internal Charge Pump Supports 100% Duty

Cycle Operation

• Automatic Synchronous Rectification

• Under-Voltage Lockout (UVLO) and OverVoltage Protection (OVP)

• Thermal Shutdown Protection

• Over-Current Protection (OCP)

• Integrated, Bidirectional Current-Sense

Amplifiers

• Available in a TQFN-26 (6mmx6mm)

Package with Wettable Flank

• Available in AEC-Q100 Grade 1

APPLICATIONS

• Brushless DC (BLDC) Motor Drivers

• Permanent Magnet Synchronous Motor

(PMSM) Drivers