KA3017 Fairchild Semiconductor, KA3017 Datasheet - Page 16

• Manufacturer Part Number: KA3017
• Description: MOSFET & Power Driver ICs QFPH-48
• Manufacturer: Fairchild Semiconductor

Specifications of KA3017

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

KA3017
7. Rotating Direction Detecting Function
Inversely, if the hall sensors turn on in the order, H3
the hall sensors are as shown below.
16
- The forward and reverse rotations of the MD are detected by the circuit, as shown in the above Table.
- The rotational direction of the MD can be learned by the output waveforms of the hall sensor and/or the driver. Hall
H2+
H2
H3+
H3
sensors are turned on in the order, H1
as shown below.
+
+
H1
H2
H3
D
CK
D-F/F
R
Q
H2
V
H3 for the reverse rotation. The output waveforms of the hall sensors are
CC
H2
11
DIR
H1, then this shows forward rotation. The output waveforms of
E
E
C
C
< E
> E
CR
CR
Rotation
Forward
Reverse
( a)
High
Low
DIR