TB6561NG
TOSHIBA Bi-CMOS Integrated Circuit
Silicon Monolithic
TB6561NG
Dual Full-Bridge Driver IC for DC Motors
The TB6561NG 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: SDIP-24-Ｐ-300-1.78
Weight: 1.62 g (typ.)
The following conditions apply to solderability:
About solderability, following conditions were confirmed
(1)Use of Sn-37Pb solder Bath
·solder bath temperature: 230℃
·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℃
·dipping time: 5 seconds
·the number of times: once
·use of R-type flux
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2010-08-25
TB6561NG
Block Diagram
Some of the functional blocks, circuits and constants in the block diagram may be omitted or simplified for explanatory
purposes.
S-GND
24
V
reg
2
SB
3
V
CC
23
OUT2A
11
V
CC
7
OUT1A OUT2B
8
14
V
CC
OUT1B S-GND
18
17
13
5V
Over-current
detection circuit
Control logic
1
S-GND
5
6
4
20
19
21
22
10
15
P-GNDB
12
S-GND
IN1A IN2A PWMA
IN1B IN2B PWMB
CLD P-GNDA
Pin Assignment
S-GND
V
reg
SB
PWMA
IN1A
IN2A
V
CC
OUT1A
N.C.
P-GNDA
OUT2A
S-GND
N.C.: 9 pin, 16 pin
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
S-GND
V
CC
CLD
PWMB
IN1B
IN2B
V
CC
OUT1B
N.C.
P-GNDB
OUT2B
S-GND
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2010-08-25
TB6561NG
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)
V
IN
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 absolute 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: 50 %)
Operating Range
(T
a
= 25°C)
Characteristics
Power supply voltage
Symbol
V
CC
Rating
10 to 36
Unit
V
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2010-08-25
TB6561NG
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
Symbol
S-GND
V
reg
SB
PWMA
IN1A
IN2A
V
CC
OUT1A
N.C.
P-GNDA
OUT2A
S-GND
S-GND
OUT2B
P-GNDB
N.C.
OUT1B
V
CC
IN2B
IN1B
PWMB
CLD
V
CC
S-GND
Output pin 1 (chB)
Power supply voltage input pin for motor drive (chB)
Input pin used to set output current level (chB) 2
Input pin used to set output current level (chB) 1
Rotation direction control pin (chB)
Output signal pin of current limiter detection
Power supply voltage input pin
Signal ground
Signal ground
5-V output pin
Standby pin
Rotation direction control pin (chA)
Input pin 1 (chA)
Input pin 2 (chA)
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
⎯
Function Description
Remarks
⎯
Connect a capacitor (0.1μF) between this
pin and S-GND pin.
High: Start, Low: Standby; internal
pull-down resistor of 100 kΩ (typ.).
Apply a 0-V/5-V signal; internal pull-down
resistor of 100 kΩ (typ.).
Apply a 0-V/5-V signal; internal pull-down
resistor of 100 kΩ (typ.).
Apply a 0-V/5-V signal; internal pull-down
resistor of 100 kΩ (typ.).
V
CC (opr)
=
10 V to 36 V
Connect to a motor coil pin.
⎯
⎯
Connect to a motor coil pin.
⎯
⎯
Connect to a motor coil pin.
⎯
⎯
Connect to a motor coil pin.
V
CC (opr)
=
10 V to 36 V
Input 0-V/5-V signal; internal pull-down
resistor of 100 kΩ (typ.).
Input 0-V/5-V signal; internal pull-down
resistor of 100 kΩ (typ.).
Input 0-V/5-V signal; internal pull-down
resistor of 100 kΩ (typ.).
⎯
V
CC (opr)
=
10 V to 36 V
⎯
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2010-08-25
TB6561NG
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
CLDH
V
CLDL
I
SD (OFF)
T
SD
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
Test
Circuit
Test Condition
Stop mode
Forward/Reverse mode
Short brake mode
Standby mode
⎯
⎯
(Design target only)
V
IN
=
5 V
V
IN
=
0 V
⎯
⎯
(Design target only)
V
PWM
=
5 V
V
PWM
=
0 V
Duty: 50 %
⎯
⎯
⎯
(Design target only)
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
= 1 mA
I
O
=
50
μA
(Design target only)
(Design target only)
30
⎯
⎯
⎯
⎯
⎯
⎯
⎯
4.75
4.25
⎯
⎯
⎯
Min
⎯
⎯
⎯
⎯
2.3
−0.2
⎯
30
⎯
2.3
−0.2
⎯
30
⎯
⎯
2.0
2.3
−0.2
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
5
2010-08-25
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