TB6562ANG/AFG
TOSHIBA Bi-CMOS Integrated Circuit
Silicon Monolithic
TB6562ANG/AFG
Dual Full-Bridge Driver IC for Stepping Motors
The TB6562ANG/AFG is a 2-phase bipolar stepping motor driver
that contains DMOS transistors in the output stage. The driver
achieves high efficiency through the use of low ON-resistance
DMOS transistors and PWM current control circuitry.
TB6562ANG
Features
2-phase/1–2-phase/W 1–2-phase excitation
PWM current control
Power supply voltage: 40 V (max)
Output current: 1.5 A (max)
Low ON-resistance: 1.5
Ω
(upper and lower transistors/typ.)
Power-saving function
Overcurrent protection: I
LIM
= 2.5 A (typ.)
Thermal shutdown
Package: TB6562ANG; SDIP24-P-300-1.78
TB6562AFG; SSOP30-P-375-1.00
SSOP30-P-375-1.00
TB6562AFG
Weight:
SDIP24-P-300-1.78: 1.62 g (typ.)
SSOP30-P-375-1.00: 0.63 g (typ.)
This product has a MOS structure and is sensitive to electrostatic discharge. When handling the product,
ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive
mat and an ionizer. Ensure also that the ambient temperature and relative humidity are maintained at reasonable
levels.
Special care should be taken with the following pins, which are vulnerable to surge current.
Pins with low surge withstand capability:
TB6562ANG: pins 10, 15 TB6562AFG: pins 13, 18
1
2012-09-28
TB6562ANG/AFG
Block Diagram
Some functional blocks, circuits, or constants may be omitted or simplified in the block diagram for explanatory purposes.
<
TB6562ANG
>
GND
24
V
reg
2
SB
3
OSC
22
OSC
Waveform squaring
circuit
Thermal
shutdown
Control logic
V
CC
23
OUT2A
11
V
CC
7
OUT1A
8
OUT2B
14
V
CC
18
OUT1B
17
GND
13
5V
Decoder
1
GND
4
Phase A
5
X1A
6
X2A
21
Phase B
20
X1B
19
X2B
9
V
ref
A
10
RSA
16
V
ref
B
15
RSB
12
GND
<
TB6562AFG
>
GND
30
V
reg
2
SB
3
OSC
28
OSC
Waveform squaring
circuit
Thermal
shutdown
Control logic
V
CC
29
OUT2A
14
V
CC
10
OUT1A
11
OUT2B
17
V
CC
21
OUT1B
20
GND
16, 22, 23, 24
5V
Decoder
1
GND
4
Phase A
5
X1A
6
X2A
27
Phase B
26
X1B
25
X2B
12
V
ref
A
13
RSA
19
V
ref
B
18
RSB
7, 8, 9, 15
GND
2
2012-09-28
TB6562ANG/AFG
Pin Description
<
TB6562ANG
>
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
GND
V
reg
SB
Phase A
X1A
X2A
V
CC
OUT1A
V
ref
A
RSA
OUT2A
GND
GND
OUT2B
RSB
V
ref
B
OUT1B
V
CC
X2B
X1B
Phase B
OSC
V
CC
GND
Ground pin
5 V output pin
Standby pin
Rotation direction control pin (Ch. A)
Input pin used to set output current level (Ch. A)
Input pin used to set output current level (Ch. A)
Power supply voltage input pin
Output pin 1 (Ch. A)
Input pin for external reference voltage (Ch. A)
Output current detection resistor connection pin (Ch. A).
Output pin 2 (Ch. A)
Ground pin
Ground pin
Output pin 2 (Ch. B)
Output current detection resistor connection pin (Ch. B)
Input pin for external reference voltage (Ch. B)
Output pin 1 (Ch. B)
Power supply voltage input pin
Input pin used to set output current level (Ch. B)
Input pin used to set output current level (Ch. B)
Rotation direction control pin (Ch. B)
External capacitor pin for triangular-wave oscillation
Power supply voltage input pin
Ground pin
V
CC (opr)
= 10 V to 34 V
Connect to a motor coil pin.
V
CC (opr)
= 10 V to 34 V
Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)
Connect to a motor coil pin.
Connect to a motor coil pin.
Connect a capacitor between this pin and the GND pin.
H: start, L: Standby, Built-in pull down resistance of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)
V
CC (opr)
= 10 V to 34 V
Connect to a motor coil pin.
Function Description
Remarks
TB6562ANG
GND
V
reg
SB
Phase A
X1A
X2A
V
CC
OUT1A
V
ref
A
RSA
OUT2A
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
GND
V
CC
OSC
Phase B
X1B
X2B
V
CC
OUT1B
V
ref
B
RSB
OUT2B
GND
<Top View>
GND
V
reg
SB
Phase A
X1A
X2A
GND
GND
GND
V
CC
OUT1A
V
ref
A
RSA
OUT2A
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
TB6562AFG
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
GND
V
CC
OSC
Phase B
X1B
X2B
GND
GND
GND
V
CC
OUT1B
V
ref
B
RSB
OUT2B
GND
3
2012-09-28
TB6562ANG/AFG
<
TB6562AFG
>
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
GND
V
reg
SB
Phase A
X1A
X2A
GND
GND
GND
V
CC
OUT1A
V
ref
A
RSA
OUT2A
GND
GND
OUT2B
RSB
V
ref
B
OUT1B
V
CC
GND
GND
GND
X2B
X1B
Phase B
OSC
V
CC
GND
Ground pin
5 V output pin
Standby pin
Rotation direction control pin (Ch. A)
Input pin used to set output current level (Ch. A)
Input pin used to set output current level (Ch. A)
Ground pin
Ground pin
Ground pin
Power supply voltage input pin
Output pin 1 (Ch. A)
Reference voltage external set pin (Ch. A)
Resistance connect pin for detecting output current (Ch. A)
Output pin 2 (Ch. A)
Ground pin
Ground pin
Output pin 2 (Ch. B)
Output current detection resistor connection pin (Ch. B)
Input pin for external reference voltage (Ch. B)
Output pin 1 (Ch. B)
Power supply voltage input pin
Ground pin
Ground pin
Ground pin
Input pin used to set output current level (Ch. B)
Input pin used to set output current level (Ch. B)
Rotation direction control pin (Ch. B)
External capacitor pin for triangular-wave oscillation
Power supply voltage input pin
Ground pin
V
CC (opr)
= 10 V to 34 V
Apply a 0 V/5 V signal, Built-in pull down resistance
of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance
of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance
of 100 kΩ (typ.)
Connect to a motor coil pin.
V
CC (opr)
= 10 V to 34 V
Connect to a motor coil pin.
Connect to a motor coil pin.
V
CC (opr)
= 10 V to 34 V
Connect to a motor coil pin.
Connect a capacitor between this pin and the GND pin.
H: start, L: Standby, Built-in pull down resistance of
100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance
of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance
of 100 kΩ (typ.)
Apply a 0 V/5 V signal, Built-in pull down resistance
of 100 kΩ (typ.)
Function Description
Remarks
4
2012-09-28
TB6562ANG/AFG
Absolute Maximum Ratings
(T
a
= 25°C)
Characteristic
Power supply voltage
Output voltage
Output current
Input voltage
Power dissipation
Operating temperature
Storage temperature
Junction temperature
Symbol
V
CC
V
O
I
O (Peak)
V
IN
P
D
T
opr
T
stg
T
j
max
Rating
40
40
1.5 (Note 1)
−0.2
to 5.5
2.5 (Note 2)
−20
to 85
−55
to 150
150
Unit
V
V
A
V
W
°C
°C
°C
Note 1: Output current may be controlled by excitation mode, ambient temperature, or heatsink.
When designing a circuit, ensure that the maximum junction temperature, T
j
max = 150°C, is not exceeded
when the IC is used.
Avoid using the IC in abnormal conditions that would cause the T
j
to exceed 150°C, even though the heat
protection circuit of the IC will continue to operate in such conditions.
Note 2: When mounted on a board (50 mm
×
50 mm
×
1.6 mm, Cu area: 50%)
The absolute maximum ratings of a semiconductor device are a set of ratings that must not be exceeded, even for a
moment. Do not exceed any of these ratings.
Exceeding the rating (s) may cause the device breakdown, damage or deterioration, and may result injury by explosion
or combustion.
Please use the IC within the specified operating ranges.
Operating Range
(T
a
= –20 to 85°C)
Characteristic
Power supply voltage
Input voltage
Vref voltage
PWM frequency
Triangular-wave oscillation frequency
Symbol
V
CC
V
IN
V
ref
f
pwm
f
OSC
Rating
10 to 34
0 to 5
0.5 to 7.0
15 to 80
45 to 400
Unit
V
V
V
kHz
kHz
5
2012-09-28
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