LB11999 Datasheet, PDF (10/12 Pages) Sanyo Semicon Device – Three-Phase Brushless Motor Drivers for CD-ROM Spindle Motor Driver (supports 44x, 48x, 50x)

LB11999,11999H
Pin Description ^{*( ): LB11999H}
Pin number Pin name Pin voltage
3 (26)
VCC2 4V to 13.6V
4 (25)
6 (22)
VCC3
VCC1
4V to 13.6V
4V to 6V
Equivalent circuit
14 (14)
RS
15 (13)
FG
100 µ
VCC1
10k
14 15
(13)
Unit (Resistance: Ω, capacitance: F)
Pin function
Source side predrive voltage supply
pin.
Constant current control amplifier
voltage supply pin.
Power supply pin for all voltage
except output transistors, source
predrive, and low current control
amplifier.
Reverse detector pin
Forward rotation: High
Reverse rotation: Low
1 Hall element waveform Schmitt
comparator composite output
8 (20)
7 (21)
10 (18)
9 (19)
12 (16)
11 (17)
13 (15)
UIN1
UIN2
VIN1
VIN2
WIN1
WIN2
VH
1.2V to
VCC1–1V
8
10
200
12
20
25 µ A
•
18
•
16
75 µA
U phase Hall element input and
VCC1 reverse detector U phase Schmitt
25 µ A
comparator input pin.
7
9
200
11
Logic High indicates UIN1 > UIN2.
V phase Hall element input and
reverse detector V phase Schmitt
comparator input pin.
25 µA
21
Logic High indicates VIN1 > VIN2.
•
19
W phase Hall element input and
•
reverse detector W phase Schmitt
17
comparator input pin.
Logic High indicates WIN1 > WIN2.
VCC1
13 (15)
Hall element lower side bias voltage
supply pin.
17 (11)
S/S
0V to VCC1
30k
2k
(11) 17
75k
50k
VCC1
When this pin is at 0.7V or lower, or
when it is open, all circuits are
inactive.
When driving motor, set this pin to
2V or higher.
Continued on next page
No. 6180-10/12