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