Ordering number : ENN6656A
42001RM (OT) No. 6656-1/7
Applications
Refrigerator fan motors
Features
No Hall sensors required.
No FG sensors required.
Lock detection circuit (Can be set to operate in either
automatic recovery or latching mode.)
Thermal shutdown circuit
Current limiter circuit
Low-voltage shutdown circuit
Forward/reverse switching
Supports both single- and dual-power supply circuits.
Package Dimensions
unit: mm
3222-HSOP28 (275 mil)
0.1
1.8max
7.6
1.0
1
14
0.3
0.8
15
28
2.7
15.2
0.8
5.6
0.5
0.2
SANYO: HSOP28 (275 mil)
[LB11981]
LB11981
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Three-Phase Sensorless Motor Driver
Monolithic Digital IC
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.
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage 1
V
CC
max
30
V
Supply voltage 2
V
CC
max
Power supply for output stage
30
V
Applied output voltage
V
O
max
30
V
Applied input voltage
V
I
max
0.3 to V
CC
+ 0.3
V
Maximum output current
I
O
max
1.0
A
Allowable power dissipation
Pdmax
Independent IC
0.5
W
Operating temperature
Topr
20 to +75
C
Storage temperature
Tstg
55 to +150
C
Specifications
Maximum Ratings
at Ta = 25C
No. 6656-2/7
LB11981
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage 1
V
CC
*
8 (5) to 28
V
Supply voltage 2
V
CC
M
8 to 28
V
Operating Conditions
at Ta = 25C
Note:
*
This device should normally be used with V
CC
8 V. If used with 5 V
V
CC
< 8 V, short the V
CC
and V
REG
pins together. Note that in this case the
electrical characteristics of the device become more easily influenced by fluctuations in the V
CC
supply voltage.
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Supply current 1
ICC
8.8
11
13.2
mA
Supply current 2
I
CCM
LKC = 5 V
480
600
720
A
Internal power supply
V
REF
4.75
5.0
5.25
V
Internal supply load regulation
V
REF
ILOAD = 5 mA
30
50
mV
Output saturation voltage 1
V
OSAT
1
IO = 0.4 A, Source + Sink
1.4
1.7
V
Output saturation voltage 2
V
OSAT
2
IO = 0.8 A, Source + Sink
2.0
2.4
V
MCOM pin common-mode input voltage range
V
IC
0
V
CC
2
V
PCOUT pin output current 1
IPCOU
Source side
120
100
80
A
PCOUT pin output current 2
IPCOD
Sink side
80
100
120
A
VCOIN pin input current
IVCOIN
VCOIN = 4 V
1
2
A
Minimum VCO frequency
fVCOmin
VCOIN = open
0.85
1
1.15
kHz
Maximum VCO frequency
fVCOmax VCOIN = 5 V
36
42
48
kHz
Maximum CX pin charge/discharge current
Icxmax
VCOIN = 5 V
550
650
750
A
Minimum CX pin charge/discharge current
Icxmin
VCOIN = open
11
14
17
A
Thermal shutdown circuit operating temperature
TTSD
Design target value
*
150
180
210
C
Thermal shutdown circuit hysteresis
TTSD
Design target value
*
15
C
BFGO pin output saturation voltage
VsatFG
ILOAD = 1 mA
0.2
0.4
V
[Lock Detection Circuit]
LKC pin voltage threshold
Vth
3.7
4
4.3
V
Threshold level hysteresis
Vth
1.8
2
2.2
V
LKC pin charge current
Ichg
V (LKC) = 0 V
0.8
1
1.2
A
LKC pin discharge current
Idis
V (LKC) = 4.2 V
0.52
0.65
0.78
A
LAT pin input current
ILAT
V (LAT) = 0 V, V (LKC)= 4.2 V
3.2
4
4.8
A
LKO pin saturation voltage
VsatLKO
ILOAD = 1 mA, V(LKC) = 4.2 V
0.2
0.4
V
[Low-Voltage Cutoff Circuit]
Low-voltage detection voltage
VT
VREG pin detection
38
4
4.2
V
Hysteresis
VF
150
180
210
mV
[Forward/Reverse Circuit]
INFR pin input current
IINFR
V (INFR) = 5 V
38
43
48
A
INFR pin high-level input threshold voltage
VINH
3.0
V
INFR pin low-level input threshold voltage
VINL
1.0
V
Electrical Characteristics
at Ta = 25C, V
CC
= V
CCM
= 18 V
Note:
*
Design target values are not tested.
No. 6656-3/7
LB11981
Pin Functions
Pin No.
Pin
Function
1
VCOIN
VCO circuit voltage input. Inputs the PCOUT pin voltage filtered by an RC circuit.
2
CX
The value of the capacitor between this pin and ground determines the operating frequency range and the minimum operating
frequency of the VCO circuit.
3
LKC
Connection for the lock detection circuit capacitor. The value of the capacitor between this pin and ground determines the lock
state monitoring period. The lock detection circuit can be disabled by connecting this pin to ground.
4
LAT
Lock detection circuit mode switching input
5
INFR
Forward/reverse switching input
6
LKO
Lock state detection signal. (A pull-up resistor is required.)
7
GND
Ground
8
BFGO
Motor back electromotive force detection FG output (3 phases combined). (A pull-up resistor is required.)
9
R
FS
Current limit sensing. The output current can be detected and current limiting applied by connecting this pin to the RF pin.
10
R
F
Lowest potential of the motor driver output transistor. The value of the resistor between this pin and ground determines the
current that flows in the output transistor.
11, 12, 14
N.C
Not connected
13
U
OUT
15
V
OUT
Motor driver output
16
W
OUT
17
N.C
Not connected
18
MCOM
Motor coil midpoint input. The coil voltage waveform is detected using this voltage as the reference level.
19
FC
Frequency characteristics correction. Closed loop oscillation in the current control system can be stopped by inserting a
capacitor between this pin and ground.
20
V
CCM
Motor drive output stage power supply
21
U
IN
Coil waveform detection comparator input
22
V
IN
These are connected to the outputs for each phase through internal 10 k
resistors.
23
W
IN
24
V
CC
Power supply
25
V
REG
Internal 5 V regulator output
26, 27
TEST
Test pin. This pin must be left open during normal operation.
28
PC
OUT
V
CO
circuit PLL output
Pin Assignment
No. 6656-4/7
LB11981
ILB00049
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VCOIN
CX
LKC
LAT
INFR
LKO
GND
PC
OUT
TEST2
TEST1
VREG
V
CC
W
IN
V
IN
BFGO
R
FS
R
F
N.C
N.C
U
OUT
N.C
U
IN
VCCM
FC
MCOM
N.C
W
OUT
V
OUT
Top view
LB11981
Truth Tables
Lock Detection Time Setting (automatic recovery mode)
No. 6656-5/7
LB11981
Pin 4 (LAT): Lock detection circuit mode switching
LAT
Mode
OPEN
Automatic recovery mode
"L"
Output latched in the off state when lock detected.
Pin 5 (INFR): Motor rotation direction switching
INFR
Mode
OPEN or "L"
Forward
"H"
Reverse
Pin 3 (LKC): Lock detection time setting capacitor connection
LKC
Mode
GND
Disabled
Capacitor inserted
Enabled
Pin 6 (LKO): Lock state detection signal (A pull-up resistor is required.)
[LKC pin]
The following formula gives the time, t1, from the point the motor speed is locked until the output is turned off.
t1[s] = C [F]
4 [V] / 1 [A]
The output off time, t2, is as follows.
t2[s] = C [F]
2 [V] / 0.65 [A]
The time, t3, following the output off state until the motor speed locked state is monitored, is as follows.
t3[s] = C [F]
2 [V] / 1 [A]
When pin 4 (LAT) is low (output off latching mode), after the t1 period lock state monitoring, the output is turned off
and the output is held in the off state until either the V
CC
or V
CC
M power supply is switched.
LKO
State
"H"
Lock not detected
"L"
Lock detected
t1
4 V
2 V
Start of lock detection
Output off period
t2
t3
ILB00050
No. 6656-6/7
LB11981
+
-
-
50 k
V
REG
BFGO
TEST1
TEST2
PCOUT
VCOIN
CX
FC
LKC
LA
T
PLL
560 k
50 k
0.47
F
0.01
F
0.1
F
V
CO
1
F
LK
O
INFR
V
REG
0.1
F
0.5
200
GND
V
CC
R
FS
R
F
0.1
F
5
V
REG
W
OUT
0.022
F
V
OUT
U
OUT
W
IN
V
IN
U
IN
MCOM
V
CCM
ILB00051
Thermal shutdown circuit
Startup control
circuit
Timing control
circuit
Lock detection
circuit
Switching drive
circuit
Upper saturation prevention circuit
Output drive circuit
Mask circuit
Divide-by-8
circuit
Low-voltage
cutoff circuit
Rotor position
detection circuit
Sample Application Circuit
(Note that the values of the external components depend on the motor used.)
PS No. 6656-7/7
LB11981
This catalog provides information as of April, 2001. Specifications and information herein are subject to
change without notice.
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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