TB6562AFG,8,EL Datasheet TB6562ANG,8, TB6562ANG, TB6562AFG,8,EL | P1-P3

TB6562ANG/AFG

2012-09-28

1

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.

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

Weight:

SDIP24-P-300-1.78: 1.62 g (typ.)

SSOP30-P-375-1.00: 0.63 g (typ.)

SSOP30-P-375-1.00

TB6562ANG

TB6562AFG

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

TB6562ANG/AFG

2012-09-28

2

Block Diagram

Some functional blocks, circuits, or constants may be omitted or simplified in the block diagram for explanatory purposes.

< TB6562ANG >

< TB6562AFG >

GND

5 V

30 2 3 28

29 14 10 11 17 21 20

1 4 5 6 27 26 25 12 13 19 18

V

reg

SB OSC V

CC

OUT2A

V

CC

OUT1A OUT2B

V

CC

OUT1B GND

GND Phase A X1A X2A Phase B X1B X2B V

ref

ARSAV

ref

B RSB GND

OSC

Waveform squaring

circuit

Control logic

Thermal

shutdown

Decoder

16, 22, 23, 24

7, 8, 9, 15

GND

5 V

24 2 3 22 23 11 7 8 14 18 17

1 4 5 6 21 20 19 9 10 16 15

V

reg

SB OSC V

CC

OUT2A

V

CC

OUT1A OUT2B

V

CC

OUT1B GND

GND Phase A X1A X2A Phase B X1B X2B V

ref

ARSAV

ref

B RSB GND

OSC

Waveform squaring

circuit

Control logic

Thermal

shutdown

Decoder

13

12

TB6562ANG/AFG

2012-09-28

3

Pin Description

< TB6562ANG >

Pin No. Symbol

Function Description

Remarks

1 GND Ground pin

2 V

reg

5 V output pin Connect a capacitor between this pin and the GND pin.

3 SB Standby pin H: start, L: Standby, Built-in pull down resistance of 100 kΩ (typ.)

4 Phase A Rotation direction control pin (Ch. A) Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)

5 X1A Input pin used to set output current level (Ch. A) Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)

6 X2A Input pin used to set output current level (Ch. A) Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)

7 V

CC

Power supply voltage input pin V

CC (opr)

= 10 V to 34 V

8 OUT1A Output pin 1 (Ch. A) Connect to a motor coil pin.

9 V

ref

A Input pin for external reference voltage (Ch. A)

10 RSA Output current detection resistor connection pin (Ch. A).

11 OUT2A Output pin 2 (Ch. A) Connect to a motor coil pin.

12 GND Ground pin

13 GND Ground pin

14 OUT2B Output pin 2 (Ch. B) Connect to a motor coil pin.

15 RSB Output current detection resistor connection pin (Ch. B)

16 V

ref

B Input pin for external reference voltage (Ch. B)

17 OUT1B Output pin 1 (Ch. B) Connect to a motor coil pin.

18 V

CC

Power supply voltage input pin V

CC (opr)

= 10 V to 34 V

19 X2B Input pin used to set output current level (Ch. B) Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)

20 X1B Input pin used to set output current level (Ch. B) Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)

21 Phase B Rotation direction control pin (Ch. B) Apply a 0 V/5 V signal, Built-in pull down resistance of 100 kΩ (typ.)

22 OSC External capacitor pin for triangular-wave oscillation

23 V

CC

Power supply voltage input pin V

CC (opr)

= 10 V to 34 V

24 GND Ground pin

GND GND

V

re

g

V

CC

SB

OSC

Phase A

Phase B

X1A

X1B

X2A

X2B

V

CC

V

CC

OUT1A

OUT1B

V

re

f

A

V

re

f

B

RSA

RSB

OUT2A

OUT2B

GND

1

24

2

23

3

22

4

21

5

20

6

19

7

18

8

17

9

16

10

15

11

14

12

13

GND 1 30

GND

V

re

g

2 29

V

CC

SB 3 28

OSC

Phase A

4 27

Phase B

X1A

5 26

X1B

X2A

6 25

X2B

GND

7 24

GND

8 23

GND

9 22 GND

V

CC

10 21

V

CC

OUT1A

11 20

OUT1B

V

re

f

A

12 19

V

re

f

B

RSA

13 18 RSB

OUT2A

14 17 OUT2B

GND

15 16 GND

TB6562ANG

TB6562AFG

TB6562AFG,8,EL

TB6562AFG,8,EL

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