DRV10866_15 Datasheet, PDF (1/22 Pages) Texas Instruments – 5V, 3Phase, Sensorless BLDC Motor Driver

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DRV10866
SBVS206A – NOVEMBER 2012 – REVISED MARCH 2015
DRV10866 5-V, 3-Phase, Sensorless BLDC Motor Driver
1 Features
•1 Input Voltage Range: 1.65 V to 5.5 V
• Six Integrated MOSFETS With 680-mA Peak
Output Current
• Ultralow Quiescent Current: 5 µA (Typical) in
Standby Mode
• Total Driver H+L R_DSOn 900 mΩ
• Sensorless Proprietary BMEF Control Scheme
• 150° Commutation
• Synchronous Rectification PWM Operation
• Selectable FG and ½ FG Open-Drain Output
• PWM_IN Input from 15 kHz to 50 kHz
• Lock Detection
• Voltage Surge Protection
• UVLO
• Thermal Shutdown
2 Applications
• Notebook CPU Fans
• Game Station CPU Fans
• ASIC Cooling Fans
3 Description
DRV10866 is a 3- phase, sensorless motor driver
with integrated power MOSFETs with drive current
capability up to 680-mA peak. DRV10866 is
specifically designed for low noise and low external
component count fan motor drive applications.
DRV10866 has built-in overcurrent protection with no
external current sense resistor needed. The
synchronous rectification mode of operation achieves
increased efficiency for motor driver applications.
DRV10866 outputs either FG or ½ FG to indicate
motor speed with open-drain output. A 150°
sensorless BEMF control scheme is implemented for
a 3-phase motor. DRV10866 is available in the
thermally efficient 10-pin, 3-mm × 3-mm × 0.75-mm
SON (DSC) package. The operating temperature is
specified from –40°C to 125°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV10866
WSON (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
DRV10866 Typical Application
100 kΩ
1 FG
2 COM
PWM 10
CS 9
3.8 kΩ
PWM_IN
V_CC
3 VCC
FGS 8
2.2 µF
4U
V7
5 GND
W6
M
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.