Page 1
Ordering number : EN6112
LB11995
Monolithic Digital IC
LB1 1995
Three-Phase Brushless Motor Driver
for CD-ROM Spindle Drive
Overview
The LB11995 is a 3-phase brushless motor driver
especially suited for CD-ROM spindle motor drives.
Functions
• Current linear drive
• Control V type amplifier
• Separate power supply for output upper side bias
circuit allows low output saturation by boosting this
power supply only (useful for 5V power supply types).
• Upper side current detection technique reduces loss
voltage of current detection resistor. Voltage drop
caused by this resistor reduces internal power
dissipation of IC.
• Built-in short braking circuit
• Built-in reverse blocking circuit
• Hall FG output
• Built-in S/S function
• Built-in current limiter circuit (selectable, 2 steps)
• Built-in Hall power supply
• Built-in thermal shutdown circuit
• Supports 3.3V DSP
Package Dimensions
unit: mm
3227-HSOP24
[LB11995]
15.3
24
1
2.0
1.9
With substrate
1.6
1.2
0.8
IC only
4.3 0.3
0.3
0.8 0.85
Pd max – Ta
13
7.9
12
2.25
0.1
0.65
10.5
1.3
0.25
2.5max
SANYO : HSOP24
1.14
0.4
Allowable power dissipation, Pd max – W
0
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
0–20 20 40 60 75 80 100
Ambient temperature, Ta – °C
0.48
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
62599RM(KI)
No. 6112-1/10
Page 2
LB11995
Specifications
Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Power supply voltage 7.0 V
Applied output voltage 14.4 V
Applied intput voltage V
Output current 1.3 A
Allowable power dissipation Pd max IC only 0.8 W
Operating temperature Topr °C
Storage temperature Tstg °C
Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Power supply voltage 4 to 6 V
VCC1 max
VCC2 max
VCC3 max
VO max
VIN max
IO max
VCC1
VCC2
VCC3
with substrate (114.3 x 76.1 x 1.6 mm3,
glass exposy)
≥ VCC1
14.4 V
14.4 V
VCC1
1.9 W
–20 to +75
–55 to +150
4 to 13.6 V
4 to 13.6 V
Sample Application at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
12V type Regulated voltage 4 to 6 V
5V type Regulated voltage 4 to 6 V
Note: When boost-up voltage is used at VCC2, output can be set to low-saturation.
VCC1
VCC2 = VCC3
V
1 = VCC3
CC
VCC2
Unregulated voltage 4 to 13.6 V
Boost-up voltage or regulated voltage
(Note)
4 to 13.6 V
No. 6112-2/10
Page 3
LB11995
Electrical Characteristics at Ta = 25°C, VCC1 = 5V, VCC2 = VCC3 = 12V
Parameter Symbol
[Power supply current]
Power supply current 8 mA
Output idle current 200 µA
[Output]
Saturation voltage, upper side 1 1.0 V
lower side 1 0.3 V
Saturation voltage, upper side 2 0.3 V
lower side 2 0.3 V
Current limiter setting voltage 0.24 V
[Hall amplifier]
Common mode input voltage range 1.2 V
Input bias current 1 µA
Minimum Hall input level 60
[S/S pin]
High level voltage 2.0 V
Low level voltage 0.7 V
Input current 200 µA
Leak current –30 µA
[Control]
VC pin input current
V
pin input current
CREF
Voltage gain 0.35 times
Startup voltage 1.5 1.8 V
Startup voltage width 50 150 mV
[Hall power supply]
Hall power supply voltage 0.8 V
Allowable current 20 mA
[Thermal shutdown]
Operating temperature Design target value 150 180 210 °C
Hysteresis Design target value 15 °C
[Short braking]
Brake pin at High level 4 5 V
Brake pin at Low level 0 1 V
ICC1
ICC2
ICC3
ICC1OQ
ICC2OQ
ICC3OQ
VOU1
VOD1
VOU2
VOD2
VCL1
VCL2
V
HCOM
I
HIB
V
HIN
V
S/SH
V
S/SL
I
S/SI
I
S/SL
I
VC
I
VCREF
GV
CO
V
CTH
∆V
CTH
V
H
I
H
T
TSD
∆T
TSD
V
BRH
V
BRL
VC = V
CREF
VC = V
CREF
VC = V
CREF
V
= 0V
S/S
V
= 0V
S/S
30 µA
V
= 0V
S/S
IO = –0.5A, VCC1 = 5V, VCC2 = VCC3 = 12V
IO = 0.5A, VCC1 = 5V, VCC2 = VCC3 = 12V
IO = –0.5A, VCC1 = VCC3 = 5V, VCC2 = 12V
IO = 0.5A, VCC1 = VCC3 = 5V, VCC2 = 12V
RRF = 0.33Ω, LMC; OPEN
RRF = 0.33Ω, LMC; GND
V
= 5V
S/S
V
= 0V
S/S
VC = V
CREF
VC = V
CREF
∆VRF/∆V
V
V
CREF
CREF
C
= 1.65V
= 1.65V
IH = 5 mA
Conditions
= 1.65V
= 1.65V
Note:
• During S/S OFF (standby), the Hall comparator is at High.
• Items shown to be design target values are not measured.
Ratings
min typ max
0 mA
150 250 µA
0.35 V
VCC1–1.0
VCC1
Unit
30 µA
mV
1 µA
1 µA
P-P
No. 6112-3/10
Page 4
Truth Table
Source –> Sink
1
2
3
4
5
6
Input:
H: Input 1 is higher in potential than input 2 by at least 0.2V.
L: Input 1 is lower in potential than input 2 by at least 0.2V.
Phase W –> Phase V
Phase V –> Phase W
Phase W –> Phase U
Phase U –> Phase W
Phase V –> Phase W
Phase W –> Phase V
Phase U –> Phase V
Phase V –> Phase U
Phase V –> Phase U
Phase U –> Phase V
Phase U –> Phase W
Phase W –> Phase U
Hall input Control
UV
H
H
L
H
L
Brake Operation Truth Table
H
L L
L
H
L
H
LB11995
W
L
H
LL
H
H
V
C
H
L
H
L
H
L
H
L
H
L
H
L
BRAKE pin Operation
H Short brake
Low or open Normal rotation
Pin Assignment
V
OUT
U
OUT
VCC2
VCC3
RF
VCC1
FRAME GND
1
2
3
4
5
6
LB11995
24
PWR GND
23
W
OUT
22
V
C
21
V
CREF
20
FC
19
LMC
FRAME GND
UIN2
UIN1
VIN2
VIN1
WIN2
WIN1
10
11
12
7
8
9
18
17
16
15
14
13
SIG GND
S/S
BRAKE
FG
RS
V
H
Top view
A12337
No. 6112-4/10
Page 5
+
–
U
IN
1
V
CC
1
V
CC
2
RF
U
OUT
U
IN
2
+
–
V
IN
1
–
+
V
IN
2
+
–
W
IN
1
W
IN
2
V
H
FG
–
+
V
OUT
W
OUT
PWR GND
V
CC
3
BRAKE
V
CREF
V
C
–
+
LMC
SIG GND
–
+
–
+
RS
FC
S/S
Matrix
Waveform distributor
Hall power
supply
Forward/
reverse
Current limiter
Short brake
Thermal shutdown
Reference voltage
Rotation direction detector
A12338
Block Diagram
LB11995
No. 6112-5/10
Page 6
LB11995
Sample Application Circuit 1 (12V Version)
12V
5V
0.1µF
0.1µF
0.33Ω
0.1µF
0.1µF
0.047µF
0.047µF
0.047µF
1
V
OUT
2
U
OUT
3
VCC2
4
VCC3
5
RF
6
VCC1
FRAME GND
7
UIN2
8
UIN1
9
VIN2
10
VIN1
11
WIN2
12
WIN1
LB11995
PWR GND
W
OUT
V
V
CREF
FC
LMC
FRAME GND
SIG GND
S/S
BRAKE
FG
RS
V
24
23
22
C
21
20
19
18
17
16
15
14
13
H
0.1µF
CTRL signal
CTRL reference voltage
0.1µF
By connecting the LMC pin to GND,
the limiter setting current can be
increased by a factor of 1.5.
S/S
BRAKE
Power supply - GND
Output - GND
Between Hall inputs
A12339
Capacitor requirements may change depending on motor.
For some motors, capacitor between Hall inputs may not be needed.
No. 6112-6/10
Page 7
LB11995
Sample Application Circuit 2 (5V Version)
6V
5V
5V
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.33Ω
0.047µF
0.047µF
0.047µF
1
V
OUT
2
U
OUT
3
VCC2
4
VCC3
5
RF
6
VCC1
FRAME GND
7
UIN2
8
UIN1
9
VIN2
10
VIN1
11
WIN2
12
WIN1
LB11995
PWR GND
W
OUT
V
V
CREF
FC
LMC
FRAME GND
SIG GND
S/S
BRAKE
FG
RS
V
24
23
22
C
21
20
19
18
17
16
15
14
13
H
0.1µF
CTRL signal
CTRL reference voltage
0.1µF
By connecting the LMC pin to GND,
the limiter setting current can be
increased by a factor of 1.5.
S/S
BRAKE
Power supply - GND
Output - GND
Between Hall inputs
A12340
Capacitor requirements may change depending on motor.
For some motors, capacitor between Hall inputs may not be needed.
No. 6112-7/10
Page 8
LB11995
Pin Descriptions
Pin number Pin name Pin voltage Equivalent circuit Pin function
3 4V to 13.6V
4 4V to 13.6V
6 4V to 6V
14 R S
15 F G
8
7
10
9
12
11
13
17 S/S
18 SIG GND
20 F C
VCC2
VCC3
VCC1
UIN1
UIN2
VIN1
VIN2
WIN1
WIN2
V
H
1.2V to
VCC1–1V
0V to VCC1
25µA
VCC1
14 15
25µA
200Ω
VCC1
13
A12341
VCC1
11
A12342
A12343
100µA
8
200Ω
10
12
25µA
75µA
30kΩ
10kΩ
2kΩ
VCC1
17
75kΩ
50kΩ
A12344
VCC1
2kΩ
20
20kΩ 5kΩ
A12345
Source side predrive voltage supply
pin
Constant current control amplifier
voltage supply pin
Power supply pin for all circuits
except output transistors, source
predriver, and constant current
control amplifier
Reverse detector pin
Forward rotation: High
Reverse rotation: Low
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 UIN1 > UIN2.
V phase Hall element input and
7
reverse detector V phase Schmitt
9
comparator input pin
Logic High indicates VIN1 > VIN2.
W phase Hall element input and
reverse detector W phase Schmitt
comparator input pin
Logic High indicates WIN1 > WIN2.
Hall element lower side bias voltage
supply pin
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 compensator pin. Connecting a capacitor
between this pin and GND prevents
closed loop oscillation in current
limiting circuitry.
Continued on next page
No. 6112-8/10
Page 9
LB11995
Continued from preceding page
Pin number Pin name Pin voltage Equivalent circuit Pin function
Control reference voltage supply
21
22
23
24 PWR GND
1
2
5R F
V
W
V
U
CREF
V
C
OUT
OUT
OUT
0V to VCC1
0V to VCC1
–1.5V
VCC1
25µA15µA25µA15µA
51kΩ
200Ω200Ω
22
21
A12346
VCC2
5
3.9Ω
3.9Ω
23 1 2
24
A12347
pin. Determines control start
voltage.
Speed control voltage supply pin
V type control technique
VC > V
VC < V
CREF
CREF
: Forward
: Slowdown
(Reverse-blocking circuit
prevents reverse rotation.)
W phase output
Output transistor GND
V phase output
U phase output
Upper side output NPN transistor
collector pin (common for all 3
phases). For current detection,
connect resistor between VCC3
pin and RF pin. Constant current
control and current limiter works
by detecting this voltage.
19 LMC
16 BRAKE
VCC1
100µA
75kΩ
50kΩ
15kΩ
5kΩ
7kΩ
VCC1
RF
19
A12348
When this pin is connected to GND,
the limiter setting current is
increased by a factor of 1.5.
Short brake pin
BRAKE:
High –> Short brake operation
16
A12349
Low/Open –> Motor drive operation
No. 6112-9/10
Page 10
LB11995
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of June, 1999. Specifications and information herein are subject to change
without notice.
No. 6112-10/10
PS
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