2014 Microchip Technology Inc. DS20005257B-page 1
Features
• Automotive AEC-Q100 Qualified, PPAP available
upon request
• Position Sensorless BLDC Drivers (no Hall
Sensor required)
• 180° Sinusoidal Drive for High Efficiency and Low
Acoustic Noise
• Supports 2V to 14V Power Supplies
• Speed Control through Power Supply Modulation
(PSM) and/or Pulse-Width Modulation (PWM)
• Built-In Frequency Generator (FG output signal)
• Built-In Lock-Up Protection and Automatic
Recovery Circuit (external capacitor not
necessary)
• Built-In Overcurrent Limitation (1.5A)
• Built-In Overvoltage Protection
• Built-In Thermal Shutdown Protection
• Thermally Enhanced 8-Lead 4 mm x 4 mm DFN
Package with Exposed Pad
• 23 kHz PWM Output Frequency
• No External Tuning Required
• Optimized for Fan Cooling Systems
Typical Applications
• Silent Notebook CPU/GPU Cooling Fans
• Air Ventilation System
• 12V 3-Phase BLDC Motors
Description
The MCP8063 device is a highly integrated 3-phase,
full-wave sensorless driver for brushless motors. It
features a 180° sinusoidal drive, high torque output,
and silent drive. Its integrated features and the wide
power supply range (2V to 14V) make the MCP8063 an
ideal candidate for a broad range of motor
characteristics, requiring no external tuning. Speed
control can be achieved through either power supply
modulation (PSM) or pulse-width modulation (PWM).
Due to the compact packaging and minimum bill of
materials (power transistors integrated, no Hall sensor,
no external tuning), the MCP8063 is optimized for fan
applications that require high efficiency and low
acoustic noise at competitive costs. Frequency
generator output enables precision speed control in
closed-loop applications. The MCP8063 driver
includes a Lock-Up Protection mode, which turns off
the output current when the motor is under lock
condition, and an automatic recovery that enables the
fan to restart when the lock condition is removed.
Features such as motor overcurrent limitation and
thermal shutdown protection improve motor system
reliability without additional efforts from design
engineers.
The MCP8063 is available in a compact
thermally-enhanced 8-lead 4 mm x 4 mm DFN
package with exposed pad.
Package Types
MCP8063
4x4 DFN*
* Includes Exposed Thermal Pad (EP); see Ta ble 3-1.
Top Vi ew
OUT1
V
BIAS
OUT2
V
DD
OUT3
1
2
3
4
8
7
6
5
GND
PWMFG
EP
9
3-Phase Brushless Sinusoidal Sensorless Motor Driver
MCP8063
