AH9485/86 SINGLE PHASE LOW NOISE SMART MOTOR DRIVER
■The AH9485 and AH9486 are single chip solutions for driving a single phase (coil)brushless DC motors.It integrates the motor driver and the high sensitivity Hall effect sensor to simplify the system circuit and PCB design for simpler solution
■Rotor lock-detect, shutdown and auto-restart functions help to prevent the motor from over-heating when rotor is locked and restarts the motor after the lock is removed
■The AH9485 and AH9486 have built-inopen drain tachometer frequency generator (FG)and rotation detection (RD) outputs to allow external interface to monitor motor rotation, speed or rotor locks conditions easily.The FG provides magnetic change frequency while the RD provides the rotor status.
■The full bridge output stage uses “soft-switching”technique to minimize the audible switching noise (vibration and acoustic noise) and electromagnetic interference (EMI) providing a low noise solution
■Over-temperature shutdown provides thermal protection for the device.An external DC voltage or a PWM(pulse-width modulation)signalon the PWM pin can be used to control the motor speed
■The AH9485 and AH9486 are packaged in TSOT26F
●Features:
■Internal Full Bridge Driver
■High Sensitivity Integrated Hall Sensor
■Low and Wide Supply Voltage Range of 2V to 6V
■Soft Switching for Low Noise
■Rotor Lock Protection and Auto-Restart
■DC Voltage or PWM Signal Speed Control
■Thermal Protection
■Tachometer FG Output(AH9485) or Rotor Lock Alarm RD Output (AH9486)
■Operating Temperature Range of -40ºC to +105ºC
■Flat Pin TSOT26F Package
■Totally Lead-Free & Fully RoHS Compliant
■Halogen and Antimony Free. “Green” Device
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AH9485 、 AH9486 、 AH9485-WUF-7 、 AH9486-WUF-7 |
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[ 5V Low Noise BLDC Cooling Fans ][ Low Voltage / Low Power BLDC Motors ][ Notebook ][ VGA DC Fans ][ Blowers ][ Micro-Motors ] |
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Datasheet |
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Please see the document for details |
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TSOT26F |
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English Chinese Chinese and English Japanese |
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September 2015 |
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Rev. 1-2 |
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DS38108 |
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618 KB |
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