LB11997H
No. 6231-1/8
LB11997H
Three-Phase Brushless Motor Driver
for CD-ROM Spindle Drive
Monolithic Digital IC
The LB11997H 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
3234-HSOP28H-C
[LB11997H]
Overview
SANYO : HSOP28H-C
Ordering number : ENN*6231
81299RM(KI)
Preliminary
6.2
28
15
1
0.8
15.3
2.7
0.3
4.9
1.3
10.5
0.65
0.25
0.85
7.9
2.25
2.5max
0.1
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
LB11997H
No. 6231-2/8
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
7.0
V
14.4
V
14.4
V
Applied output voltage
14.4
V
Applied intput voltage
V
Output current
1.3
A
Allowable power dissipation
Pd max
0.8
W
Operating temperature
Topr
20 to +75
C
Storage temperature
Tstg
55 to +150
C
Absolute Maximum Ratings
at Ta = 25
C
Specifications
Operating Conditions
at Ta = 25
C
Sample Application
at Ta = 25
C
Note: When boost-up voltage is used at V
CC
2, output can be set to low-saturation.
V
CC
1 max
V
CC
2 max
V
CC
3 max
V
O
max
V
IN
max
I
O
max
V
CC
1
Parameter
Symbol
Conditions
Ratings
Unit
Power supply voltage
4 to 6
V
4 to 13.6
V
4 to 13.6
V
V
CC
1
V
CC
2
V
CC
3
Parameter
Symbol
Conditions
Ratings
Unit
12V type
Regulated voltage
4 to 6
V
Unregulated voltage
4 to 13.6
V
5V type
Regulated voltage
4 to 6
V
4 to 13.6
V
Boost-up voltage or regulated voltage
(Note)
V
CC
1
V
CC
2 = V
CC
3
V
CC
1 = V
CC
3
V
CC
2
V
CC
1
LB11997H
No. 6231-3/8
min
typ
max
[Power supply current]
Power supply current
8 mA
0 mA
150 250
A
Output idle current
200
A
30
A
30
A
[Output]
Saturation voltage, upper side 1
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
0.35 V
[Hall amplifier]
Common mode input voltage range
1.2 V
Input bias current
1
A
Minimum Hall input level
60
[S/S pin]
High level voltage
2.0
V
Low level voltage
0.7 V
Input current
200
A
Leakage current
30
A
[Control]
1
A
1
A
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
Ratings
Parameter
Symbol
Conditions
Unit
1.0
Electrical Characteristics
at Ta = 25
C, V
CC
1
= 5V, V
CC
2 = V
CC
3 = 12V
Note:
During S/S OFF (standby), the Hall comparator is at High.
Design target values are not measured.
V
C
pin input current
V
CREF
pin input current
I
CC
1
I
CC
2
I
CC
3
I
CC
1OQ
I
CC
2OQ
I
CC
3OQ
V
C
= V
CREF
V
C
= V
CREF
V
C
= V
CREF
V
S/S
= 0V
V
S/S
= 0V
V
S/S
= 0V
V
OU
1
V
OD
1
V
OU
2
V
OD
2
V
CL
1
V
CL
2
I
O
= 0.5A, V
CC
1 = 5V, V
CC
2 = V
CC
3 = 12V
I
O
= 0.5A, V
CC
1 = 5V, V
CC
2 = V
CC
3 = 12V
I
O
= 0.5A, V
CC
1 = V
CC
3 = 5V, V
CC
2 = 12V
I
O
= 0.5A, V
CC
1 = V
CC
3 = 5V, V
CC
2 = 12V
R
RF
= 0.33
, LMC; OPEN
R
RF
= 0.33
, LMC; GND
V
HCOM
I
HIB
V
HIN
V
CC
11.0
mV
P-P
V
S/SH
V
S/SL
I
S/SI
I
S/SL
V
S/S
= 5V
V
S/S
= 0V
V
CC
1
I
VC
I
VCREF
GV
CO
V
CTH
V
CTH
V
C
= V
CREF
= 1.65V
V
C
= V
CREF
= 1.65V
V
RF
/
V
C
V
CREF
= 1.65V
V
CREF
= 1.65V
V
H
I
H
I
H
= 5 mA
T
TSD
T
TSD
V
BRH
V
BRL
LB11997H
No. 6231-4/8
Truth Table
Pin Assignment
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.
V
C
Brake Operation Truth Table
Hall input
Control
U
V
W
Phase W > Phase V
H
Phase V > Phase W
L
Phase W > Phase U
H
Phase U > Phase W
L
Phase V > Phase W
H
Phase W > Phase V
L
Phase U > Phase V
H
Phase V > Phase U
L
Phase V > Phase U
H
Phase U > Phase V
L
Phase U > Phase W
H
Phase W > Phase U
L
Source > Sink
1
2
3
4
5
6
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
L
1
PWR-GND
28 VOUT
2
WOUT
27 UOUT
3
NC
26 VCC2
4
VC
25 VCC3
5
VCREF
24 NC
6
FC
FRAME GND
23 RF
7
LMC
22 VCC1
FRAME GND
8
SIG-GND
21 UIN2
9
NC
20 UIN1
10
NC
19 VIN2
11
S/S
18 VIN1
12
BRAKE
17 WIN2
13
FG
16 WIN1
14
RS
15 VH
LB11997H
A12506
Top view
BRAKE pin
H
Low or open
Operation
Short brake
Normal rotation
LB11997H
No. 6231-5/8
Block Diagram
+
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
A12507
LB11997H
No. 6231-6/8
Pin number
Pin name
Pin voltage
Equivalent circuit
Pin function
26
4V to 13.6V
25
4V to 13.6V
22
4V to 6V
14
RS
13
FG
15
11
S/S
8
SIG GND
6
FC
20
21
18
19
16
17
Pin Description
Continued on next page
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 U
IN
1 > U
IN
2.
V phase Hall element input and
reverse detector V phase Schmitt
comparator input pin.
Logic High indicates V
IN
1 > V
IN
2.
W phase Hall element input and
reverse detector W phase Schmitt
comparator input pin.
Logic High indicates W
IN
1 > W
IN
2.
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.
Control loop frequency
characteristics compensator pin.
Connecting a capacitor between this
pin and GND prevents closed loop
oscillation in current limiting circuitry.
GND pin for all circuits except
output.
V
CC
2
V
CC
3
V
CC
1
U
IN
1
U
IN
2
V
IN
1
V
IN
2
W
IN
1
W
IN
2
1.2V to
V
CC
11V
V
H
0V to V
CC
1
A12508
A12509
A12510
A12511
A12512
14 13
VCC1
100
A
10k
18
20
16
25
A
19
21
17
25
A
25
A
200
200
VCC1
15
VCC1
75
A
30k
2k
11
VCC1
50k
75k
6
VCC1
2k
20k
5k
LB11997H
No. 6231-7/8
Pin number
Pin name
Pin voltage
Equivalent circuit
Pin function
5
4
2
1
28
27
23
RF
7
LMC
12
BRAKE
Continued from preceding page
Control reference voltage supply
pin. Determines control start
voltage.
Speed control voltage supply pin.
V type control technique
V
C
> V
CREF
: Forward
V
C
< V
CREF
: Slowdown
(Reverse-blocking circuit prevents
reverse rotation.)
W phase output.
Output transistor GND.
V phase output.
Upper side output NPN transistor
collector pin (common for all 3
phases). For current detection,
connect resistor between V
CC
3
pin and RF pin. Constant current
control and current limiter works
by detecting this voltage.
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
Low/Open
>
Motor drive operation
U phase output.
V
CREF
V
C
W
OUT
V
OUT
U
OUT
0V to V
CC
1
0V to V
CC
1
1.5V
A12513
A12514
A12515
A12516
4
5
25
A
15
A
25
A
15
A
VCC1
51k
200
200
23
1
VCC2
3.9
3.9
27 28
2
7
15k
5k
7k
VCC1
RF
100
A
12
VCC1
50k
75k
PWR GND
LB11997H
No. 6231-8/8
This catalog provides information as of August, 1999. Specifications and information herein are subject to change
without notice.
PS
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.
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