lb11889m Sanyo Semiconductor Corporation, lb11889m Datasheet - Page 8

• Manufacturer Part Number: lb11889m
• Description: For Vcr Capstan Three-phase Brushless Motor Driver
• Manufacturer: Sanyo Semiconductor Corporation

V CC
GND
CTL
CTLREF
LIM
W IN +
FR
W IN -
U IN +
V IN +
Block Diagram
U IN -
V IN -
33
34
16
6
7
8
10
11
12
13
14
15
+
-
+
-
+
-
Control amplifier 1
Control amplifier 2
+
-
-
+
U
V
W
Forward
/reverse
select
Reference voltage
Bandgap 1.2V
LIMREF
+
+
-
TSD
9
distribution &
torque ripple
Differential
correction
FC
block
LB11889M
Upper saturation
prevention control
Anti-logarithm
distribution
differential
-
+
gm
Feedback
amplifier
&
gm
-
+
FG amplifier
+
-
gm
+
-
Output stage
W
U
V
Drive distribution circuit & lower
saturation prevention control
No.8791-8/11
21
26
27
28
23
31
22
32
Rf (SENSE)
3
4
5
Rf (PWR)
ADJ
GSENSE
FG IN -
FG IN +
W-OUT
VS
U-OUT
FG OUT
V-OUT