PD16856_15 Datasheet, PDF (7/18 Pages) Renesas Technology Corp – MONOLITHIC CD-ROM 3-PHASE SPINDLE MOTOR DRIVER

BLOCK DIAGRAM
IND 1
STB 2
VM 3
VM 4
Q5
OUT2 5
Q6
RF 6
RF 7
Q3
OUT1 8
Q4
VM 9
VM 10
Q1
OUT0 11
Q2
RF 12
RF 13
ISEN 14
CL 15
µPD16856
Phase
excitation
pulse
generator
UVLO
OSC
T.S.D
+
–
+
–
+
–
Ganged
with STB
Reverse
rotation
detection
circuit
30 EC
29 ECR
28 VDD
27 CT
26 H2+
25 H2–
24 H1+
23 H1–
22 H0+
21 H0–
20 HB
19 FGsel
18 ST/SP
17 REV
16 GND
Caution When there is more than one pin of the same kind of pin (VM and RF), all pins should be connected
to their targets.
Data Sheet S13447EJ1V0DS00
5