1 Features
• AEC-Q100 qualified for automotive applications
– Temperature Grade-1 : –40°C ≤ TA ≤ 125°C
• Three-phase BLDC motor driver with integrated
sensorless motor control algorithm
– Code-free high speed Trapezoidal Control
– Supports upto 3kHz (electrical frequency)
– Very fast startup time (<50ms)
– Fast Deceleration (<150ms)
– Supports 120° or 150° modulation to improve
acoustic performance
– Windmilling support through forward
resynchronization and reverse drive
– Analog, PWM, freq. or I2C based speed input
– Active Demagnetization to reduce power losses
– Configurable motor startup and stop options
– Optional closed loop speed control
– Anti-voltage surge protections prevents
overvoltage
– Variable monitoring through DACOUT
• 4.5 to 35V operating voltage (40V abs max)
• High output current capability: 8A peak
• Low MOSFET on-state resistance
– 95mΩ RDS(ON) (HS + LS) at TA = 25°C
• Low power sleep mode
– 3μA (maximum) at VVM = 24-V, TA = 25°C
• Speed loop accuracy: 3% with internal clock and
1% with external clock reference
• Supports up to 100kHz PWM frequency for low
inductance motor support
• Does not require external current sense resistor
• Built-in 3.3V ±5%, 20mA LDO regulator
• Built-in 3.3V/5V, 170mA buck regulator
• Dedicated DRVOFF pin to disable (Hi-Z) outputs
• Spread spectrum and slew rate for EMI mitigation
• Suite of Integrated protection features
– Supply undervoltage lockout (UVLO)
– Motor lock detection (5 different types)
– Overcurrent protection (OCP)
– Thermal warning and shutdown (OTW/TSD)
– Fault condition indication pin (nFAULT)
– Optional fault diagnostics over I2C interface

2 Applications
• Brushless-DC (BLDC) Motor Modules
• Two wheeler Fuel Pumps
• Headrest Control Modules

3 Description
The MCT8316A-Q1 provides a single-chip, code-free
sensorless trapezoidal device for customers requiring
high speed operation (up to 3kHz electrical) or very
fast startup time (<50ms) for 12 to 24V brushless-
DC motors up to 8A peak current. The MCT8316AQ1
integrates three 1/2-H bridges with 40V absolute
maximum capability and a very low RDS(ON) of 95mΩ
(high-side + low-side). Power management features
of an adjustable buck regulator and LDO generate the
3.3V or 5.0V voltage rails for the device and can be
used to power external circuits.
Sensorless trapezoidal control is highly configurable
ranging from motor start-up behavior to closed loop
operation through register settings. These settings
can be saved in non-volatile EEPROM, which allows
the device to operate stand-alone once the device
has been configured. The device receives a speed
command through a PWM input, analog voltage,
variable frequency square wave or I2C command.
There are a large number of protection features
integrated into the MCT8316A-Q1, intended to protect
the device, motor, and system against fault events.