Rechargable Fan -- HT66FM5230 + HT45FH4M

Rechargable Fan
HT66FM5230 + HT45FH4M
Characteristics
 BLDCM ASSP Flash MCU : HT66FM5230 ‒ Sine-wave hall sensor solution
 Li-Battery ASSP MCU : HT45FH4M ‒ Li battery charger management solution
 Human Machine Interface (HMI) : VR controls speed, Li charging LED display
 Power
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Adapter : Input AC90V ~ 240V, Output : DC12V
Li battery :  2 in series (DC 6V ~ 8.4V, 2600mAh3)
 Solutions
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DC brushless BLDC control MCU
 3-phase DC brushless motor control
 Sine-wave hall sensor algorithm
 SVPWM Control
 Over Current Protection (OCP)
 VR stepless speed control
Li battery charging management MCU
 Auto detect adaptor power / battery power
 Battery rapid charging function
 Battery protections (OCP / OVP / OTP)
 Li Battery (7800mAh) supports 6 hours use (800RPM speed)
 Power converter efficiency up to 85%
 PCBA Solution
Li Battery Interface
HT45FH4M
12VDC
System Block Diagram
Motor : U, V, W
HT66FM5230
HMI
Hall Sensor Interface