TA8492P/PG
2004-07-27
1
TOSHIBA Bipolar Linear Integrated Circuit
TA8492P/PG
Three-Phase Full-Wave Brushless DC Motor Driver IC
The TA8492P/PG is a three-phase full-wave supply voltage
control motor driver IC.
Features
Output current: I
O (max)
= 1.5 A
Supply voltage control motor driver
CW/CCW/STOP function
Operating voltage range: V
CC (opr.)
= 7~18 V
V
S (opr.)
= 0~18 V
Block Diagram
Weight: 1.11 g (typ.)
4, 5, 12, 13
3ST
3
FRC
V
CC
14
7
6
Ma
t
r
i
x
11
10
9
8
H
a
+
H
a
-
H
b
+
H
b
-
H
c
+
H
c
-
TSD
16
2
15
1 L
c
L
b
L
a
V
S
GND
TA8492PG:
The TA8492PG is Pb-free product.
The following conditions apply to solderability:
*Solderability
1.
Use of Sn-63Pb solder bath
*solder bath temperature = 230C
*dipping time = 5 seconds
*number of times = once
*use of R-type flux
2.
Use of Sn-3.0Ag-0.5Cu solder bath
*solder bath temperature = 245C
*dipping time = 5 seconds
*number of times = once
*use of R-type flux
TA8492P/PG
2004-07-27
2
Pin Function
Pin No.
Symbol
Function
1 L
c
c-phase drive output pin
2 L
a
a-phase drive output pin
3 3ST
Switching
CW/CCW/Stop
4 GND
5 GND
6 H
a
-
a-phase negative hall signal input pin
7 H
a
+
a-phase positive hall signal input pin
8 H
c
-
c-phase negative hall signal input pin
9 H
c
+
c-phase positive hall signal input pin
10 H
b
-
b-phase negative hall signal input pin
11 H
b
+
b-phase positive hall signal input pin
12 GND
13 GND
14 V
CC
Supply voltage pin for control circuits
15 L
b
b-phase drive output pin
16 V
S
Supply voltage pin for output circuit
Function
Hall Input
Output
FRS
H
a
H
b
H
c
L
a
L
b
L
c
1 0 1 L H M
1 0 0 L M H
1 1 0 M L H
0 1 0 H L M
0 1 1 H M L
Forward
0 0 1 M H L
1 0 1 H L M
1 0 0 H M L
1 1 0 M H L
0 1 0 L H M
0 1 1 L M H
Reverse
0 0 1 M L H
1 0 1
1 0 0
1 1 0
0 1 0
0 1 1
Stop
0 0 1
High Impedance
TA8492P/PG
2004-07-27
3
Maximum Ratings
(Ta
=
25C)
Characteristic Symbol
Rating
Unit
V
S
20 V
Supply voltage
V
CC
20 V
Output current
I
O
1.5
A
1.4 (Note 1)
Power dissipation
P
D
2.7 (Note 2)
W
Operating temperature
T
opr
-
30~85
C
Storage temperature
T
stg
-
55~150 C
Note 1: Not mounted on the PCB
Note 2: Mounted on the PCB (PCB area: 50
50
0.8 mm cu area: 60% or greater)
Electrical Characteristics
(Ta
=
25C, V
CC
=
V
S
=
12 V)
Characteristic Symbol
Test
Circuit
Test Condition
Min
Typ.
Max
Unit
I
CC-1
V
CC
=
12 V, 3ST: GND,
V
S
: Open
5.0 7.0
I
CC-2
V
CC
=
18 V, 3ST: GND,
V
S
: Open
6.0 9.0
Supply current
I
CC-3
1
Stop (3ST
=
V
CC
)
2.5 4
mA
Upper V
SAT (U)
2
I
O
=
1 A (source current)
1.35 1.7
Output saturation voltage
Lower V
SAT (L)
3
I
O
=
1 A (sink current)
0.4 0.6
V
Upper I
L (U)
4
V
S
=
20 V
50
Output leak current
Lower I
L (L)
5
V
S
=
20 V
50
A
Input sensitivity
V
H
6
20
400
mV
p-p
Hall amp.
Common mode input
voltage range
V
CMRH
7
2
V
CC
-
3.5
V
Stop V
STP
V
CC
-
0.4
V
CC
CW V
FW
2.5
6.5
CW/CCW
control operation voltage
CCW V
RV
6
0
0.4
V
Thermal shutdown operating
temperature
T
SD
160
C
TA8492P/PG
2004-07-27
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Functional Description
Hall amp. circuit
The Hall amp is a high-gain amp. The input sensitivity is 20 mV
p-p
(min). Make sure that the input amplitude
does not exceed 400 mV
p-p
.
The common-mode voltage V
CMRH
= 2.0 to V
CC
- 3.5 V.
CW/CCW/Stop control circuit
In Reverse mode, the control input (3ST) voltage range is V
RV
= 0 to 0.4 V. However, keep the voltage as close to
the IC GND as possible (see the application circuit diagram).
Similarly, in Stop mode, keep the voltage as close to the IC V
CC
as possible.
In Forward mode, Toshiba recommend an input voltage of V
CC
/2.
Output circuits
The output circuit uses voltage control where the upper and lower output transistors are saturated and the
output current is controlled by the V
S
voltage. To reduce switching noise, connect a snubber capacitor to the
output circuit.
Thermal shutdown circuit
The circuit turns off output when T
j
= 160C (typ.) (according to design specification)
Ha
+
Ha
-
(Upper)
L
a
V
S
(Lower)
L
a
3ST
Ha
+
Ha
-
20 mV
p-p
~400 mV
p-p
TA8492P/PG
2004-07-27
5
Handling Precautions
CW/CCW/Stop Control Circuit
a) At 3ST input, because the input voltage ranges for V
RV
(Reverse mode) and V
STP
(Stop mode) are narrow,
make sure no impedance is caused between the IC V
CC
and GND pins. Do not connect an input resistor to
the 3ST pin since doing so will cause voltage offset.
b) When controlling the rotation direction using 3ST input, switch the direction from Reverse to Stop mode or
vice versa with V
S
= 0 V to eliminate the risk of punch-through current being generated at output.
Hall Amp. Circuit
A Hall IC input amplitude of over 400 mV
p-p
will cause an output function error. Make sure the amplitude is
within the specified range.
Output Circuits
Particular care is necessary in the design of the output, V
S
, V
CC
and GND lines since the IC may be destroyed
by short circuits between outputs, air contamination faults, or faults resulting from improper grounding.
External Parts
Symbo
l
Function
Recommended
Value
Remarks
C
1
Power supply line oscillation prevention
4.7
F
C
2
Power supply line oscillation prevention
4.7
F
C
3
Output noise reduction
4.7
F (Note
3)
R
1
Hall
bias
(Note 4)
Note 3: Set an appropriate value depending on the motor and use conditions.
Set an appropriate value so that the Hall IC output common-mode input voltage and amplitude fall within the
specified ranges in the Electrical Characteristics table.
Note 4: Be sure to set this bias so that the Hall element output amplitude and common-mode input voltage fall within
the ranges specified in the table of electrical characteristics.
TA8492P/PG
2004-07-27
6
Test Circuits
1. I
CC1
, I
CC2
, I
CC3
I
CC1
: Input V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V). V
CC
= 12 V/V
3ST
= GND
I
CC2
: Input V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V). V
CC
= 18 V/V
3ST
= GND
I
CC3
: Input V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V). V
CC
= 12 V/V
3ST
= V
CC
2. V
SAT (U)
V
SAT (U)
: Input V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V), check that the output function is at High level,
then measure phases a, b, and c.
V
Hc
+
V
Hb
+
15
13
11
12
9
10
L
b
V
CC
GND GND
H
b
+
H
b
-
H
c
+
1
3
2
4
6
5
8
7
L
c
L
a
3ST GND GND
H
a
-
H
a
+
H
c
-
4.
7
F
4.7
F
V
CC
V
Ha
+
6 V
V
3S
T
16
V
S
14
V
Hc
+
V
Hb
+
15
13
11
12
9
10
L
b
V
CC
GND GND
H
b
+
H
b
-
H
c
+
1
3
2
4
6
5
8
7
L
c
L
a
3ST GND GND
H
a
-
H
a
+
H
c
-
I
O
=
1.
0
A
4.7
F
12 V
V
Ha
+
6 V
16
V
S
14
12 V
V
4.
7
F
TA8492P/PG
2004-07-27
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3. V
SAT (L)
V
SAT (L)
: Input V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V) and check that the output function is "L".
(a-phase, b-phase, c-phase)
4. I
L (U)
I
L (U)
: Check that the output function is high impedance at 3ST
= V
CC
.
(a-phase, b-phase, c-phase)
V
Hc
+
V
Hb
+
15
13
11
12
9
10
L
b
V
CC
GND GND
H
b
+
H
b
-
H
c
+
1
3
2
4
6
5
8
7
L
c
L
a
3ST GND GND
H
a
-
H
a
+
H
c
-
I
O
=
1.
0
A
4.7
F
12 V
V
Ha
+
6 V
16
V
S
14
12 V
V
4.
7
F
V
Hc
+
V
Hb
+
15
13
11
12
9
10
L
b
V
CC
GND GND
H
b
+
H
b
-
H
c
+
1
3
2
4
6
5
8
7
L
c
L
a
3ST GND GND
H
a
-
H
a
+
H
c
-
4.7
F
12 V
V
Ha
+
6 V
16
V
S
14
18 V
A
4.
7
F
V
CC
TA8492P/PG
2004-07-27
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5. I
L (L)
I
L (L)
: Check that the output function is high impedance at 3ST
= V
CC
.
(a-phase, b-phase, c-phase)
6. V
H
, V
STP
, V
FW
, V
RV
V
H
: Input
V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V) and check the output function.
(a-phase, b-phase, c-phase) AT V
3ST
= GND.
V
STP
: When V
3ST
is 8.5 V, input V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V), fix the output function, then check
that the output function is at high impedance.
V
FW
: Input V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V) and check that the output function is forward mode.
AT V
3ST
= 2.5 V/6.5 V.
V
Hc
+
V
Hb
+
15
13
11
12
9
10
L
b
V
CC
GND GND
H
b
+
H
b
-
H
c
+
1
3
2
4
6
5
8
7
L
c
L
a
3ST GND GND
H
a
-
H
a
+
H
c
-
4.7
F
12 V
V
Ha
+
6 V
16
V
S
14
12 V
4.
7
F
V
V
CC
V
Hc
+
V
Hb
+
15
13
11
12
9
10
L
b
V
CC
GND GND
H
b
+
H
b
-
H
c
+
1
3
2
4
6
5
8
7
L
c
L
a
3ST GND GND
H
a
-
H
a
+
H
c
-
4.7
F
12 V
V
Ha
+
6 V
16
V
S
14
12 V
4.
7
F
V
V
3S
T
TA8492P/PG
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V
RV
: Input
V
Ha
+
, V
Hb
+
, V
Hc
+
(6.01 V/5.99 V) and check that the output function is reverse mode.
AT V
3ST
= 0.4 V.
7. V
CMRH
V
CMRH
: Measure the I
CMRH
gap between V
CMRH
= 2 V and 8.5 V.
15
13
11
12
9
10
L
b
V
CC
GND GND
H
b
+
H
b
-
H
c
+
1
3
2
4
6
5
8
7
L
c
L
a
3ST GND GND
H
a
-
H
a
+
H
c
-
4.7
F
12 V
16
V
S
14
12 V
4.
7
F
V
CM
R
H
A
I
CM
RH
TA8492P/PG
2004-07-27
10
Application Circuit
4, 5, 12, 13
3ST 3
FRC
V
CC
14
7
6
Ma
t
r
i
x
11
10
9
8
H
a
+
H
a
-
H
b
+
H
b
-
H
c
+
H
c
-
TSD
16
2
15
1
L
c
L
b
L
a
V
S
GND
C
1
12 V
R
1
V
CC
R
1
C
3
C
2
12 V
TA8492P/PG
2004-07-27
11
Package Dimensions
Weight: 1.11 g (typ.)
TA8492P/PG
2004-07-27
12
Notes of Contents
1. Block Diagrams
Some functional blocks, circuits, or constants may be omitted or simplified in the block diagram for
explanatory purposes.
2. Equivalent Circuits
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory
purposes.
3. Timing Charts
Timing charts may be simplified for explanatory purposes.
4. Maximum Ratings
The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not
be exceeded during operation, even for an instant.
If any of these ratings are exceeded during operation, the electrical characteristics of the device may be
irreparably altered and the reliability and lifetime of the device can no longer be guaranteed.
Moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in
other equipment. Applications using the device should be designed so that no maximum rating will ever be
exceeded under any operating conditions.
Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set
forth in this document.
5. Application Circuits
The application circuits shown in this document are provided for reference purposes only. Thorough evaluation
is required, especially in the mass production design phase.
In furnishing these examples of application circuits, Toshiba does not grant the use of any industrial property
rights.
6. Test Circuits
Components in the test circuits are only used to obtain and confirm the device characteristics. These
components and circuits are not guaranteed to prevent malfunction or failure in application equipment.
Handling of the IC
Ensure that the product is installed correctly to prevent breakdown, damage and/or degradation in the product
or equipment.
Overcurrent Protection and Heat Protection Circuits
These protection functions are intended only as a temporary means of preventing output short circuits or other
abnormal conditions and are not guaranteed to prevent damage to the IC.
If the guaranteed operating ranges of this product are exceeded, these protection features may not operate
and some output short circuits may result in the IC being damaged.
The overcurrent protection feature is intended to protect the IC from temporary short circuits only.
Short circuits persisting over long periods may cause excessive stress and damage the IC. Systems should be
configured so that any overcurrent condition will be eliminated as soon as possible.
Counter-electromotive Force
When the motor reverses or stops, the effect of counter-electromotive force may cause the current to flow to
the power source.
If the power supply is not equipped with sink capability, the power and output pins may exceed the maximum
rating.
The counter-electromotive force of the motor will vary depending on the conditions of use and the features of
the motor. Therefore make sure there will be no damage to or operational problem in the IC, and no damage to
or operational errors in peripheral circuits caused by counter-electromotive force.
TA8492P/PG
2004-07-27
13
The information contained herein is subject to change without notice.
The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patent or patent rights of
TOSHIBA or others.
TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability
Handbook" etc..
The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer's own risk.
The products described in this document are subject to the foreign exchange and foreign trade laws.
TOSHIBA products should not be embedded to the downstream products which are prohibited to be produced
and sold, under any law and regulations.
030619EBA
RESTRICTIONS ON PRODUCT USE
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