KA3014 Fairchild Semiconductor, KA3014 Datasheet - Page 16

• Manufacturer Part Number: KA3014
• Description: MOSFET & Power Driver ICs QFPH-48
• Manufacturer: Fairchild Semiconductor

Specifications of KA3014

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

7. ROTATING DIRECTION DETECTION FUNCTION
• 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.
Inversely, if the hall sensors turn on in the order, H3
the hall sensors are as shown below\.
.
If the hall sensors turn on in the order, H1 H2 H3, then this indicates reverse rotation. The output waveforms of the hall
sensors are as shown below.
H2+
H2
H3+
H3
+
+
H1
H2
H3
H1
H2
H3
D
CK
D-F/F
R
Q
V
CC
H2
11
DIR
16
H1, then this shows forward rotation. The output waveforms of
E
E
C
C
< E
> E
CR
CR
Rotation
Forward
Reverse
( a)
( b)
11
High
Low
DIR
KA3014