lb11995h Sanyo Semiconductor Corporation, lb11995h Datasheet - Page 8

• Manufacturer Part Number: lb11995h
• Description: Three-phase Brushless Motor Driver For Cd-rom Spindle Drive
• Manufacturer: Sanyo Semiconductor Corporation

Pin Descriptions
Pin number
20
21
18
19
16
17
26
25
22
14
13
15
11
8
6
Pin name
SIG GND
V
V
V
W
W
U
U
V
V
V
CC
CC
CC
R S
F G
S/S
F C
IN
IN
IN
IN
IN
IN
H
1
2
1
2
2
3
1
1
2
0V to V
Pin voltage
V
4V to 13.6V
4V to 13.6V
1.2V to
4V to 6V
CC
1–1V
CC
1
20
18
16
75 A
100 A
200
30k
25 A
11
LB11995H
2k
Equivalent circuit
6
75k
50k
10k
25 A
20k
2k
5k
V CC 1
V CC 1
13 14
V CC 1
25 A
15
V CC 1
200
A12354
A12355
A12356
A12357
A12358
V CC 1
21
19
17
Source side predrive voltage supply
pin
Constant current control amplifier
voltage supply pin
Reverse detector pin
1 Hall element waveform Schmitt
comparator composite output
U phase Hall element input and
reverse detector U phase Schmitt
comparator input pin
Logic High indicates U
V phase Hall element input and
reverse detector V phase Schmitt
comparator input pin
Logic High indicates V
W phase Hall element input and
reverse detector W phase Schmitt
comparator input pin
Logic High indicates W
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.
GND pin for all circuits except
output
Control loop frequency compensa-
tor pin. Connecting a capacitor
between this pin and GND prevents
closed loop oscillation in current
limiting circuitry.
Power supply pin for all circuits
except output transistors, source
predriver, and constant current
control amplifier
Hall element lower side bias voltage
supply pin
Forward rotation: High
Reverse rotation: Low
Pin function
Continued on next page
IN
IN
IN
No. 6116-8/10
1 > V
1 > U
1 > W
IN
IN
IN
2.
2.
2.