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EUM6861A

Eutech Microelectronics
Part Number EUM6861A
Manufacturer Eutech Microelectronics
Description 18V PWM Fan Motor Driver
Published Jul 18, 2014
Detailed Description EUM6861/A/B/C 18V PWM Fan Motor Driver DESCRIPTION EUM6861/A/B/C is a fan motor driver for the single coil brushless DC ...
Datasheet PDF File EUM6861A PDF File

EUM6861A
EUM6861A

Overview
EUM6861/A/B/C 18V PWM Fan Motor Driver DESCRIPTION EUM6861/A/B/C is a fan motor driver for the single coil brushless DC motor.
With its high efficient direct PWM control mode, EUM6861/A/B/C controls the speed of brushless DC motor with a built in HALL IC interface.
EUM6861/A/B/C is suitable to drive variable speed motors for personal computer’s power supply radiation fans and CPU coolers.
EUM6861/A/B/C integrates PWM fan speed control, minimum speed mode, soft start, fan tachometer, lock protection, auto restart and Hall Bias functions.
PWM mode controls fan speed in low noise and low vibration ways by adjusting RCTL voltage.
EUM6861/A/B/C can set minimum fan speed by presetting RMIN voltage.
With soft start function, EUM6861/A/B/C can drive motor from slow speed to fast speed in a settable time by setting the external capacitor between SS and GND.
If a fan motor is stalled by the external force or obstacles, overdrive current may incur coil overheat and burning.
To prevent motor from ...


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