Technology

FS209

Rev0.3 Dec.31, 2004(LF)

FUNCTION DESCRIPTIONS

HALL SENSOR LOCATION

The Fig 2 is the hall sensor location, where marks the IC number. The best sensitivity,

which can be intensified as much as possible, depends on the vertical distance and position

between magnetic pole and the hall sensor (Fig 3). For the single-phase motor, this design

is very important.

Fig 2. FS209 Hall Sensor Location

N

S

d

d1: hall sensor to case is 0.52mm

Fig 3. Magnetic Distribution and Z-axis position

X

Y

X

Y

UNIT

mm

1.75

1.35

mm