TB6588FG Datasheet, PDF (1/20 Pages) Toshiba Semiconductor – 3-Phase Full-Wave PWM Driver for Sensorless DC Motors

TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB6588FG
3-Phase Full-Wave PWM Driver for Sensorless DC Motors
TB6588FG
The TB6588FG is a three-phase full-wave PWM driver for
sensorless brushless DC (BLDC) motors. It controls rotation speed
by changing the PWM duty cycle, based on the voltage of an
analog control input.
Features
• Sensorless drive in three-phase full-wave mode
• PWM chopper control
• Controls the PWM duty cycle, based on an analog input
(7-bit ADC)
Weight: 0.79 g (typ.)
• Output current: IOUT = 1.5 A typ. (2.5 A max)
• Power supply: VM = 7 to 42 V (50 V max)
• Overcurrent protection
• Forward and reverse rotation
• Lead angle control (0°, 7.5°, 15°, 30°)
• Overlapping commutation
• Rotation speed detecting signal
• DC excitation mode to improve starting characteristics
• Adjustable DC excitation time and forced commutation time for a startup operation
• Forced commutation frequency control: fosc/(6 × 2¹⁶), fosc/(6 × 2¹⁷), fosc/(6 × 2¹⁸), fosc/(6 × 2¹⁹)
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2008-4-25