Rev0.7 May. 29, 2009(LF)

Technology

FS211F

FUNCTION DESCRIPTIONS

Hall Sensor Location

The figure 4 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 (figure 5). For the 2-phase motor, this design is very

important.

Unit

X

1.75

mm

Y

1.35

mm

N

S

d

Fig.5 Magnetic Distribution

X

Y

Fig.4 FS211F Hall Sensor Location