TB6561FG
TOSHIBA Bi-CMOS Integrated Circuit
Silicon Monolithic
TB6561FG
Dual Full-Bridge Driver IC for DC Motors
TB6561FG
The TB6561FG is a dual bridge driver IC for DC brush motor that
contains MOS transistors in an output stage.
By using low ON-resistance MOS transistors and PWM current
control circuitry, the driver achieves high efficiency.
Features
•
•
•
•
•
•
•
•
•
Power supply voltage: 40 V (max)
Output current: 1.5 A (max)
Low ON-resistance: 1.5
Ω
(upper and lower transistors/typ.)
Direct PWM current control system
Power-saving function
Forward/reverse/short brake/stop modes
Over-current protection: I
LIM
= 2.5 A (typ.)
Thermal shutdown
Package: SSOP30-P-375-1.00
SSOP30-P-375-1.00
Weight: 0.63g (typ.)
The following conditions apply to solderability:
About solderability, following conditions were confirmed
(1)Use of Sn-37Pb solder Bath
·solder bath temperature: 230°C
·dipping time: 5 seconds
·the number of times: once
·use of R-type flux
(2)Use of Sn-3.0Ag-0.5Cu solder Bath
·solder bath temperature: 245°C
·dipping time: 5 seconds
·the number of times: once
·use of R-type flux
1
2010-08-17
TB6561FG
Block Diagram
Some of the functional blocks, circuits and constants in the block diagram may be omitted or simplified for explanatory
purposes.
S-GND
30
V
reg
2
SB
3
V
CC
29
OUT2A
14
V
CC
10
OUT1A OUT2B
11
17
V
CC
OUT1B
21
20
S-GND
16,22,23,24
5V
Over current detect
circuit
TSD
Control Circuit
1
S-GND
5
6
4
26
25
27
28
13
18
P-GNDB
7, 8,9,15
S-GND
N.C.: 12pin, 19pin
IN1A IN2A PWMA
IN1B IN2B PWMB
CLD P-GNDA
Absolute Maximum Ratings
(T
a
= 25°C)
Characteristics
Power supply voltage
Output voltage
Output current
Input voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
V
O
I
O
(Peak)
VIN
P
D
T
opr
T
stg
Rating
40
40 (Note 1)
1.5 (Note 2)
−0.3
to 5.5
2.5 (Note 3)
−20
to 85
−55
to 150
Unit
V
V
A
V
W
°C
°C
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, in which case 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 condition.
Note 1: Please use output voltage within the above absolute maximum rating, 40 V, in which includes back-EMF
voltage.
Note 2: The output current may be subject to the duty cycle, ambient temperature and heatsink. Ensure that the
junction temperature does not exceed 150
°C
(max).
Note 3: When mounted on a board (50 mm
×
50 mm
×
1.6 mm, Cu area: 70 %)
Operating Range
(T
a
=
25°C)
Characteristics
Power supply voltage
Symbol
V
CC
Rating
10 to 36
Unit
V
2
2010-08-17
TB6561FG
Pin Description
Pin No.
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
29
30
Symbol
S-GND
V
reg
SB
PWMA
IN1A
IN2A
S-GND
S-GND
S-GND
V
CC
OUT1A
N.C.
P-GNDA
OUT2 A
S-GND
S-GND
OUT2B
P-GNDB
N.C.
OUT1B
V
CC
S-GND
S-GND
S-GND
IN2B
IN1B
PWM B
CLD
V
CC
S-GND
Output pin 1 (chB)
Power supply voltage input pin for motor drive
(chB)
Signal ground
Signal ground
Signal ground
Input pin used to set output current level (chB)
Input pin used to set output current level (chB)
Rotation direction control pin (chB)
Output signal pin of current limiter detection
Power supply voltage input pin
Signal ground
V
CC (opr)
=
10 V to 36 V
⎯
Function Description
Signal ground
5 V output pin
Standby pin
Rotation direction control pin (chA)
Input pin 1 (chA)
Input pin 2 (chA)
Signal ground
Signal ground
Signal ground
Power supply voltage input pin for motor drive
(chA)
Output pin 1 (chA)
⎯
Power ground for chA output
Output pin 2 (chA)
Signal ground
Signal ground
Output pin 2 (chB)
Power ground for chB output
⎯
Connect to a motor coil pin.
V
CC (opr)
=
10 V to 36 V
⎯
⎯
⎯
Input 0-V/5-V signal, Built in pull-down resistance (100 kΩ
(typ.)).
Input 0-V/5-V signal, Built in pull-down resistance (100 kΩ
(typ.)).
Input 0-V/5-V signal, Built in pull-down resistance (100 kΩ
(typ.)).
⎯
Connect to a motor coil pin.
⎯
⎯
Connect to a motor coil pin.
⎯
⎯
V
CC (opr)
=
10 V to 36 V
Connect to a motor coil pin.
⎯
⎯
Remarks
⎯
Connect a capacitor (0.1
μF)
between this pin and S-GND
pin.
High: Start, Low: Standby, Built in pull-down resistance (100
kΩ (typ.)).
Apply a 0-V/5-V signal, Built in pull-down resistance (100 kΩ
(typ.)).
Apply a 0-V/5-V signal, Built in pull-down resistance (100 kΩ
(typ.)).
Apply a 0-V/5-V signal, Built in pull-down resistance (100 kΩ
(typ.)).
⎯
⎯
⎯
3
2010-08-17
TB6561FG
Electrical Characteristics
(V
CC
=
24 V, T
a
=
25°C)
Characteristics
Symbol
I
CC1
Supply current
I
CC2
I
CC3
I
CC4
Input voltage
Control
circuit
Hysteresis voltage
Input current
V
INH
V
INL
V
IN (HYS)
I
INH
I
INL
Input voltage
Hysteresis voltage
PWM input
circuit
Input current
PWM frequency
Minimum clock pulse
width
Input voltage
Standby
circuit
Hysteresis voltage
Input current
V
PWMH
V
PWML
V
PWM (HYS)
I
PWMH
I
PWML
f
PWM
⎯
t
w(PWM)
V
INSH
V
INSL
V
IN (HYS)
I
INSH
I
INSL
Output ON resistance
R
on (U+L)
I
L (U)
I
L (L)
V
F (U)
V
F (L)
V
reg
V
CLD(H)
V
CLD(L)
I
SD (OFF)
T
SD
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
Test
Circuit
Test Condition
Stop mode
Forward/Reverse mode
Short brake mode
Standby mode
⎯
⎯
(Design guarantee)
V
IN
=
5 V
V
IN
=
0 V
⎯
⎯
(Design guarantee)
V
PWM
=
5 V
V
PWM
=
0 V
Duty: 50 %
⎯
⎯
⎯
(Design guarantee)
V
IN
=
5 V
V
IN
=
0 V
I
O
=
0.2 A
I
O
=
1.5 A
V
CC
=
40 V
V
CC
=
40 V
I
O
=
1.5 A
I
O
=
1.5 A
I
reg
= 1mA
I
O
=
50μA
(Design guarantee)
(Design guarantee)
Min
⎯
⎯
⎯
⎯
2.3
−0.2
⎯
30
⎯
2.3
−0.2
⎯
30
⎯
⎯
2.0
2.3
−0.2
⎯
30
⎯
⎯
⎯
⎯
⎯
⎯
⎯
4.75
4.25
⎯
⎯
⎯
Typ.
5.5
5.0
5.5
1.5
⎯
⎯
0.4
50
⎯
⎯
⎯
0.4
50
⎯
⎯
⎯
⎯
⎯
0.4
50
⎯
1.5
1.5
⎯
⎯
1.3
1.3
5
⎯
⎯
50
160
Max
10
9
10
3
5.5
0.8
⎯
75
5
5.5
0.8
⎯
75
5
100
⎯
5.5
0.8
⎯
75
5
2.0
2.0
10
10
2.0
2.0
5.25
V
reg
0.5
⎯
⎯
Ω
μA
V
kHz
μs
μA
V
μA
V
mA
Unit
Output leakage current
⎯
μA
Diode forward voltage
Internal reference voltage
Output signal of current limiter
detection
Offset time for current limiter
Thermal shutdown circuit operating
temperature
⎯
⎯
⎯
⎯
⎯
⎯
V
V
V
μs
°C
4
2010-08-17
TB6561FG
Input/Output Function
Input
IN1
H
IN2
H
SB
H
PWM
H
L
H
L
H
L
H
L
H
L
OUT1
L
L
L
H
L
OUT2
L
H
L
L
L
Output
Mode
Short brake
CW/CCW
Short brake
CCW/CW
Short brake
Stop
L
H
H
H
L
H
L
L
H
OFF
(high-impedance)
OFF
(high-impedance)
H/L
H/L
L
Standby
Current Limiter Detection Circuit (CLD)
The CLD pin outputs the states of the current limiter and thermal shutdown circuits. If the current limiter
for either channel A or B or the thermal shutdown circuit (shared for both channels) operates, the CLD pin
state changes from low (normal state) to high.
The CLD circuit supports automatic recovery; its output returns to low once the current decreases to a
value below the limit or once the thermal shutdown state is released.
Mode
Under TSD operation and
current detection
Normal
CLD Output
H
L
＜When
current limiter operated＞
I
LIM
Output current
0
10
μs
(typ.)
Not detected
OFF time
50
μs
(typ.)
OFF time
50
μs
(typ.)
10
μs
(typ.)
H
CLD output
L
160°C (typ.)
Chip temperature
120°C (typ.)
TSD
H
CLD output
L
5
2010-08-17
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