TB62215AFNG_技术文档

TB62215AFG/FTG/FNG/HQ

TOSHIBA BiCD Integrated Circuit Silicon Monolithic

TB62215AFG, TB62215AFTG

TB62215AFNG, TB62215AHQ

CLOCK-in controlled Bipolar Stepping Motor Driver

The TB62215A is a two-phase bipolar stepping motor driver

using a PWM chopper. The clock in decoder is built in.

Fabricated with the BiCD process, rating is 40 V/3.0 A .

FG

Features

・BiCD process integrated monolithic IC.

・Capable of controlling 1 bipolar stepping motor.

・PWM controlled constant-current drive.Allows full, half, quarter

step operation.

HSOP28-P-0450-0.80

Weight 0.79g (Typ.)

・Low on-resistance (High + Low side=0.6Ω(typ.)) MOSFET

output stage.

FTG

FNG

HQ

・High voltage and current (For specification, please refer to absolute

maximum ratings and operation ranges)

・Built-in error detection circuits (Thermal shutdown (TSD), over-current

shutdown (ISD), and power-on reset (POR))

・Built-in VCC regulator for internal circuit use.

・Chopping frequency of a motor can be customized by external resistance

and capacitor.

QFN48-P-0707-0.50

Weight 0.14g(Typ.)

・Multi package lineup

TB62215AFG: HSOP28-P-0450-0.80

TB62215AFTG: QFN48-P-0707-0.50

TB62215AFNG: HTSSOP48-P-300-0.50

TB62215AHQ: HZIP25-P-1.00F

Note) Please be careful about thermal conditions during use.

HTSSOP48-P-300-0.50

Weight 0.20g (Typ.)

HZIP25-P-1.00F

Weight 7.6g (Typ.)

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TB62215AFG/FTG/FNG/HQ

Pin assignment (TB62215A)

(Top View)

CW/CCW

MO

1

28

27

26

25

24

23

22

OSCM

VREFA

2

3

4

VREFB

NC

DMODE1

DMODE2

CLK

ENABLE

5

6

VCC

VM

RESET

7

FIN(GND)

FG

RSA

NC

OUTA+

NC

8

9

21

20

19

18

17

RSB

NC

10

11

OUTB+

NC

GND

12

13

14

GND

OUTA-

GND

16

15

OUTB-

GND

Please mount the FIN of the HSOP package to the GND area of the PCB.

(Top View)

34

31

28

30 29 27 26 25

33 32

36

35

24 NC

37

38

39

NC

23

22

NC

GND

21 OUTB-

20

40

41

42

43

44

GND

VREFB

VREFA

OSCM

OUTB-

FTG

19 GND

18 GND

17

16

15

OUTA-

GND

CW/CCW

MO 45

46

DMODE2 47

48

DMODE1

14 NC

13

NC

3

6

9

12

10 11

1

2

4

5

7

8

Please mount the four corner pins of the QFN package and the exposed pad to the GND area of the PCB.

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TB62215AFG/FTG/FNG/HQ

(Top View)

OSCM

NC

1

48

VREFA

VREFB

GND

NC

47

46

45

44

43

42

41

40

39

38

37

36

2

3

4

CW/CCW

MO

DMODE1

NC

5

6

NC

DMODE2

CLK

NC

VCC

NC

7

8

ENABLE

9

VM

10

11

12

13

RESET

GND

NC

RSA

NC

RSB

NC

FNG

RSA

NC

OUTA+

14

15

16

35

34

33

OUTB+

17

18

19

20

21

22

23

32

31

30

29

28

27

26

25

OUTB+

NC

GND

NC

OUTA-

NC

OUTB-

OUTA-

GND

OUTB-

GND

24

Please mount the exposed pad of the HTSSOP package to the GND area of the PCB.

2

6

8

10

12

14

16

18

20

22

24

4

HQ

1

3

5

7

9

11

13

15

17

19

21

23

25

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TB62215AFG/FTG/FNG/HQ

TB62215A Block diagram

OSCM

Motor

Oscillator

OSC-Clock

Converter

Standby

DMODE1

DMODE2

Control

+

Step

Resolution

Selector

VCC

Regulator

System

Oscillator

VM

Power-on

Reset

Signal

Decode

Logic

CW/CCW

CLK

VREFA

Current

Level

Set

Reference

VREFB

RESET

Setting

ENABLE

MO

Angle monitor

Current

Comp

Motor Control Logic

Current

Comp

TSD

ISD

Predriver

RSA

RSB

GND

OUTA+

OUTA-

OUTB+

OUTB-

Functional blocks/circuits/constants in the block chart etc. may be omitted or simplified for explanatory purposes.

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TB62215AFG/FTG/FNG/HQ

Notes

All the grounding wires of the TB62215A must run on the solder mask on the PCB and be externally terminated at

only one point. Also, a grounding method should be considered for efficient heat dissipation.

Careful attention should be paid to the layout of the output, VM and GND traces, to avoid short circuits across

output pins or to the power supply or ground. If such a short circuit occurs, the device may be permanently

damaged.

Also, the utmost care should be taken for pattern designing and implementation of the device since it has power

supply pins (VM, RS, OUT, GND) through which a particularly large current may run. If these pins are wired

incorrectly, an operation error may occur or the device may be destroyed.

The logic input pins must also be wired correctly. Otherwise, the device may be damaged owing to a current

running through the IC that is larger than the specified current.

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TB62215AFG/FTG/FNG/HQ

Pin explanations

TB62215AFG (HSOP28)

Pin No.1 – 28

Pin No.

Pin Name

Function

1

CW/CCW

MO

Motor rotation direction set pin

Electric angle monitor pin

Step resolution set pin no.1

Step resolution set pin no.2

CLK signal input pin

2

3

DMODE1

DMODE2

CLK

4

5

6

ENABLE

RESET

RSA

Ach/Bch output stage ON/OFF control pin

Electric angle reset pin

7

8

Motor Ach current sense pin

9

NC

Non-connection pin

Motor Ach (+) output pin

Non-connection pin

Ground pin

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

OUTA+

NC

GND

OUTA-

GND

Motor Ach (-) output pin

Ground pin

GND

OUTB-

GND

Motor Bch (-) output pin

Ground pin

NC

Non-connection pin

Motor Bch (+) output pin

Non-connection pin

OUTB+

NC

RSB

Motor Bch current sense pin

Motor power supply pin

Internal VCC regulator monitor pin

Non-connection pin

VM

VCC

NC

Non-connection pin

NC

VREFB

VREFA

OSCM

Motor Bch output set pin

Motor Ach output set pin

Oscillating circuit frequency for chopping set pin

Please do not run patterns under NC pins.

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Pin explanations

TB62215AFTG (QFN48)

Pin No.1 – 28

Pin No.

Pin Name

Function

1

NC

CLK

Non-connection pin

2

CLK signal input pin

3

ENABLE

RESET

GND

Ach/Bch output stage ON/OFF control pin

Electric angle reset pin

4

5

Ground pin

6

NC

Non-connection pin

Motor Ach current sense pin

7

RSA(*)

NC

Motor Ach current sense pin

8

9

Non-connection pin

Motor Ach (+) output pin

Non-connection pin

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

OUTA+(*)

NC

GND

Ground pin

Motor Ach (-) output pin

Ground pin

OUTA-(*)

GND

Ground pin

GND

Motor Bch (-) output pin

OUTB-(*)

GND

Motor Bch (-) output pin

Ground pin

Non-connection pin

Motor Bch (+) output pin

NC

OUTB+(*)

NC

Motor Bch (+) output pin

Non-connection pin

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TB62215AFG/FTG/FNG/HQ

Pin No.29 – 48

Pin No.

Pin Name

Function

Motor Bch current sense pin

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

RSB(*)

NC

Non-connection pin

VM

Motor power supply pin

Non-connection pin

NC

VCC

NC

Internal VCC regulator monitor pin

Non-connection pin

NC

Non-connection pin

NC

Non-connection pin

NC

Non-connection pin

NC

GND

VREFB

VREFA

OSCM

CW/CCW

Ground pin

Motor Bch output set pin

Motor Ach output set pin

Oscillating circuit frequency for chopping set pin

Motor rotation direction set pin

45

46

47

48

MO

DMODE1

DMODE2

NC

Electric angle monitor pin

Step resolution set pin no.1

Step resolution set pin no.2

Non-connection pin

(*) Note:

・Please do not run patterns under NC pins.

・Please connect the pins with the same pin name, while using the TB62215A.

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Pin explanations

TB62215AFNG (HTSSOP48)

Pin No.1 – 28

Pin No.

Pin Name

Function

1

OSCM

NC

Oscillating circuit frequency for chopping set pin

Non-connection pin

2

3

CW/CCW

MO

Motor rotation direction set pin

Electric angle monitor pin

4

5

DMODE1

NC

Step resolution set pin no.1

Non-connection pin

6

7

DMODE2

CLK

Step resolution set pin no.2

CLK signal input pin

8

9

ENABLE

RESET

GND

Ach/Bch output stage ON/OFF control pin

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Electric angle reset pin

Ground pin

NC

Non-connection pin

Motor Ach current sense pin

RSA(*)

NC

Non-connection pin

Motor Ach (+) output pin

Non-connection pin

OUTA+(*)

NC

Non-connection pin

NC

GND

Ground pin

NC

Non-connection pin

Motor Ach (-) output pin

Ground pin

OUTA-(*)

GND

Ground pin

GND

Motor Bch (-) output pin

OUTB-(*)

NC

Non-connection pin

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TB62215AFG/FTG/FNG/HQ

Pin No.29 – 48

Pin No.

Pin Name

Function

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

GND

NC

Ground pin

Non-connection pin

Motor Bch (+) output pin

NC

OUTB+(*)

NC

Non-connection pin

Motor Bch current sense pin

Non-connection pin

RSB(*)

NC

Non-connection pin

NC

VM

Motor power supply pin

Non-connection pin

NC

VCC

NC

Internal VCC regulator monitor pin

Non-connection pin

NC

Non-connection pin

NC

Non-connection pin

45

46

47

48

NC

GND

Ground pin

VREFB

VREFA

Motor Bch output set pin

Motor Ach output set pin

(*) Note:

・Please do not run patterns under NC pins.

・Please connect the pins with the same pin name, while using the TB62215A.

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TB62215AFG/FTG/FNG/HQ

Pin explanations

TB62215AHQ (HZIP25)

Pin No.

機能

Pin Name

1

CW/CCW

MO

Motor rotation direction set pin

Electric angle monitor pin

Step resolution set pin no.1

Step resolution set pin no.2

CLK signal input pin

2

3

DMODE1

DMODE2

CLK

4

5

6

ENABLE

RESET

GND

Ach/Bch output stage ON/OFF control pin

Electric angle reset pin

Ground pin

7

8

9

RSA

Motor Ach current sense pin

Motor Ach (+) output pin

Ground pin

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

OUTA+

GND

OUTA-

GND

Motor Ach (-) output pin

Ground pin

OUTB-

GND

Motor Bch (-) output pin

Ground pin

OUTB+

RSB

Motor Bch (+) output pin

Motor Bch current sense pin

Non-connection pin

NC

VM

Motor power supply pin

Non-connection pin

NC

Non-connection pin

VCC

Internal VCC regulator monitor pin

Ground pin

GND

VREF

OSCM

Motor output set pin

Oscillating circuit frequency for chopping set pin

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TB62215AFG/FTG/FNG/HQ

INPUT/OUTPUT equivalent circuit (TB62215A)

Pin name

IN/OUT signal

Equivalent circuit

150Ω

Logic

Input

DMODE1

DMODE2

CLK

Digital Input (VIH/VIL)

ENABLE

RESET

VIH: 2.0V(min) to 5.5V(max)

VIL : 0V(min) to 0.8V(max)

CW/CCW

GND

Logic

Output

Digital Output (VOH/VOL)

VOH: 2.0V(min) to 5.5V(max)

VOL: 0V(min) to 0.8V(max)

(Pull-up resistor :10k to 100kΩ)

MO

GND

VCC

VCC voltage range

1kΩ

4.75V(min) to 5.0V(typ.) to 5.25V(max)

VREF

VREFA

VREFB

VREF voltage range

0V to 3.6V

GND

1kΩ

OSCM

OSCM frequency setting range

OSCM

0.64MHz(min)

2.4MHz(max)

to

1.6MHz(typ.)

to

GND

RS

OUTA+

OUTA-

OUTB+

OUTB-

RSA

VM power supply voltage range

10V(min) to 38V(max)

OUT-

OUT+

OUTPUT pin voltage

10V(min) to 38V(max)

RSB

GND

The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes.

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TB62215AFG/FTG/FNG/HQ

Function explanation (Stepping motor)

1.CLK Function

Each up-edge of the CLK signal will shift the motor’s electrical angle per step.

Function

CLK input

↑

↓

Shifts the electrical angle per step.

(State of the electrical angle does not change.)

2. ENABLE function

The ENABLE pin controls the ON and OFF of the corresponding output stage. This pin serves to select if the motor is

stopped in Off (High impedance) mode or activated. Please set the ENABLE pin to ‘L’ during VM power-on and

power-off sequence.

Function

ENABLE input

H

L

Output stage=‘ON’ (Normal operation mode)

Output stage=’OFF’ (High impedance mode)

3. CW/CCW function and the output pin function (Output logic at the time of a charge start)

The CW/CCW pin controls the rotation direction of the motor. When set to ‘Clockwise’, the current of OUTA is output

first, with a phase difference of 90 deg. When set to ‘Counter clockwise”, the current of OUTB is output first with a

phase difference of 90 deg.

CW/CCW input

OUT (+)

OUT (-)

H : Clockwise

operation(CW)

H

L

L : Counter clockwise

operation(CCW)

H

4. Step resolution select function

Function

DMODE1

L

DMODE2

L

Standby mode

(the OSCM is disabled and the output stage is set to ‘OFF’ status)

L

H

L

Full step resolution

Half step resolution

Quarter step resolution

H

When switching the DMODE1,2; setting the RESET signal to Low (will set the electrical angle to the

initial status:MO=Low), is recommended.

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TB62215AFG/FTG/FNG/HQ

Step resolution setting and initial angle

[Full step resolution]

H

CLK

L

H

MO

L

+100%

IOUT(A)

0%

-100%

+100%

0%

IOUT(B)

-100%

CCW

CW

[Half step resolution ]

H

CLK

L

H

MO

L

+100%

IOUT(A)

0%

-100%

+100%

0%

IOUT(B)

-100%

CCW

CW

MO output shown in the timing chart is when the MO pin is pulled up.

Timing charts may be simplified for explanatory purpose.

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TB62215AFG/FTG/FNG/HQ

[Quarter step resolution]

H

CLK

L

H

MO

L

+100%

+71%

+38%

IOUT(A)

0%

-38%

-71%

-100%

+100%

+71%

+38%

0%

-38%

-71%

IOUT(B)

-100%

CCW

CW

MO output shown in the timing chart is when the MO pin is pulled up.

Timing charts may be simplified for explanatory purpose.

Step setting and current percentage

Current

±100%

±71%

±38%

0%

Full

○

Half

○○○

Quarter

○○○

○

5. RESET function

RESET Input

H

Function

Sets the electrical angle to the initial condition.

Normal operation mode

L

The current for each channel (while RESET is applied) is shown in the table below. MO will show ‘L’ at this time.

Step resolution setting

Full step

Ach current setting

100%

Bch current setting

100%

Default electrical angle

45°

100%

71%

100%

71%

45°

Half step

Quarter step

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TB62215AFG/FTG/FNG/HQ

6. Decay function

Mixed Decay Mode

f

CR pin

chop

Internal CLK

waveform

DECAY MODE 1

Setting current

NF

37.5%

MIXED

DECAY

MODE

MDT

CHARGE MODE → NF: Reach setting current → SLOW MODE

→ MIXED DECAY TIMMING → FAST MODE → Monitoring current

→ (In case setting current > Outputting current) CHARGE MODE

RNF

Fast

Charge

Slow

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TB62215AFG/FTG/FNG/HQ

7．Output transistor function mode

VM

RRS

RSpin

U1

U2

U1

U2

U1

U2

OFF

ON

Load

L1

L2

L1

L2

L1

L2

OFF

ON

OFF

PGND

Charge mode

PGND

Slow mode

A current circulates around the

motor coil and this device.

PGND

Fast mode

The energy of the motor coil

is fed back to the power

A current flows into the motor coil.

Output transistor function

MODE

U1

U2

OFF

L1

L2

CHARGE

SLOW

ON

OFF

ON

OFF

ON

FAST

ON

OFF

Note: This table shows an example of when the current flows as indicated by the arrows in the figures shown above.

If the current flows in the opposite direction, refer to the following table.

MODE

U1

U2

L1

L2

CHARGE

SLOW

OFF

ON

OFF

ON

OFF

ON

FAST

OFF

ON

This IC controls the motor current to be constant by 3 modes listed above.

The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes.

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TB62215AFG/FTG/FNG/HQ

8．Calculation of the Predefined Output Current

For PWM constant-current control, this IC uses a clock generated by the OSCM oscillator.

The peak output current (Peak current) can be set via the current-sensing resistor (RS) and the reference voltage

(Vref), as follows:

Vref(V)

IOUT(max) = Vref(gain)

×

R_RS(Ω)

Vref(gain) : the Vref decay rate is 1/ 5.0 (typ.)

For example : In the case of a 100% setup

when Vref = 3.0 V, Torque=100%,RS=0.51Ω, the motor constant current (Peak current) will be

calculated as:

IOUT = 3.0V / 5.0 / 0.51Ω= 1.18 A

9. Calculation of the OSCM oscillation frequency (chopper reference frequency)

An approximation of the OSCM oscillation frequency (fOSCM) and chopper frequency (fchop)

can be calculated by the following expressions.

fOSCM = 1/[0.56x{Cx(R1+500)}]

………C,R1: External components for OSCM (C = 270 pF, R1 = 3.6 kΩ => fOSCM = 1.6 MHz (Typ.))

fchop = fOSCM / 16

………fOSCM = 1.6 MHz => fchop = About 100 kHz

If chopping frequency is raised, Rippl of current will become small and wave-like reproducibility will improve. However, the

gate loss inside IC goes up and generation of heat becomes large.

By lowering chopping frequency, reduction in generation of heat is expectable. However, Rippl of current may become large.

It is a standard about about 70 kHz. A setup in the range of 50 to 100 kHz is recommended.

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Absolute Maximum Ratings (Ta = 25°C)

Symbol

Rating

Unit

Remarks

Characteristics

Motor power supply

Motor output voltage

VM

Vout

IOUT

VCC

VIN(H)

VIN(L)

VMO

IMO

40

V

Motor output current

3.0

A

Note1

Internal Logic power supply

6.0

V

When externally applied.

6.0

V

-

Logic input voltage

-0.4

V

-

MO output voltage

MO Inflow current

QFN48

6.0

V

-

30

mA

W

°C

-

PD

1.3

Note2

HTSSOP48

HSOP28

HZIP25

PD

1.3

Note2

Power

dissipation

PD

1.15

3.2

Note2

PD

Note2

Operating temperature

TOPR

TSTR

Tj(max)

-20 to 85

-55 to 150

150

-

Storage temperature

Junction temperature

Note 1: Usually, the maximum current value at the time should use 70% or less of the absolute maximum ratings for a

standard on thermal rating. The maximum output current may be further limited in view of thermal

considerations, depending on ambient temperature and board conditions. ( It will depend on the heat

generation.)

Note 2: Device alone (Ta =25°C)

Ta: Ambient temperature

Topr: Ambient temperature while the IC is active

Tj: Junction temperature while the IC is active. The maximum junction temperature is limited by the thermal

shutdown (TSD) circuitry. It is advisable to keep the maximum current below a certain level so that the

maximum junction temperature, Tj (max), will not exceed 120°C.

Caution）Absolute maximum ratings

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 device breakdown, damage or deterioration, and may result in injury by

explosion or combustion.

The value of even one parameter of the absolute maximum ratings should not be exceeded under any

circumstances. The TB62215A does not have overvoltage detection circuit. Therefore, the device is damaged if a

voltage exceeding its rated maximum is applied.

All voltage ratings, including supply voltages, must always be followed. The other notes and considerations

described later should also be referred to.

Operation Ranges (Ta=-20 to 85°C)

Min

Typ.

Max

Unit

Remarks

Note1

Characteristics

Symbol

Motor power supply

Motor output current

VM

10

-

24

38

V

A

1.8

3.0

IOUT

VIN(H)

VIN(L)

VMO

2.0

0

-

5.5

0.8

5.0

100

V

Logic input High Level

Logic input Low Level

Logic input voltage

V

MO output pin voltage

Clock input frequency

-

3.3

-

V

fCLK

-

kHz

Chopper frequency

Vref input voltage

fchop(range)

Vref

40

100

2.0

150

3.6

kHz

V

GND

Note 1: Maximum current for actual usage may be limited by the operating circumstances such as operating conditions

(exciting mode, operating time, and so on), ambient temperature, and heat conditions (board condition and so on).

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Electrical Specifications 1 (Ta = 25°C, VM = 24 V, unless specified otherwise)

Characteristics

Symbol

Test condition

Min

Typ.

Max

Unit

HIGH

LOW

VIN(H)

VIN(L)

Logic input pin (Note)

Logic input voltage=5V

Logic input voltage=0V

2.0

0

-

5.5

0.8

300

75

V

Logic input voltage

Logic input hysteresis voltage

VIN(HYS)

IIN(H)

100

35

-

mV

µA

V

HIGH

50

-

Logic input current

LOW

IIN(L)

1

MO output pin voltage

VOL(MO)

IOL=24mA, output=Low

Output pins=open

Standby mode

Output pins=open

Standby release, ENABLE=Low

-

0.2

0.5

IM1

IM2

-

2.0

3.5

3.0

5.0

mA

Power consumption

Output pins=open

IM3

IOH

-

5.0

-

7.0

1

mA

µA

Full step resolution

VRS=VM=40V,Vout=0V

VRS=VM=Vout=40V

Current differential between Ch

IOUT=1.5A

High-side

Low-side

output leakage current

IOL

ΔIOUT1

ΔIOUT2

IRS

1

-5

0

-

0

-

5

µA

%

Motor current channel differential

Motor current setting accuracy

RS pin current

5

%

VRS=VM=24V

10

µA

Tj=25°C, Forward direction

Motor output ON-resistance

(High-side+Low-side)

Ω

Ron(H+L)

-

0.6

0.8

(High-side+Low-side)

Note: VIN (H) is defined as the VIN voltage that causes the outputs (OUTA,OUTB) to change when a pin under test is

gradually raised from 0 V. VIN (L) is defined as the VIN voltage that causes the outputs (OUTA, OUTB) to change

when the pin is then gradually lowered from 5 V. The difference between VIN (H) and VIN (L) is defined as the VIN

(HYS).

Note: When the logic signal is applied to the device whilst the VM power supply is not asserted; the device is designed

not to function, but for safe usage, please apply the logic signal after the VM power supply is asserted and the VM

voltage reaches the proper operating range.

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Electrical Specifications 2 (Ta =25°C, VM = 24 V, unless specified otherwise)

Characteristics

Symbol

Test condition

Min

Typ.

Max

Unit

Vref input current

VCC voltage

Iref

VCC

Vref=2.0V

ICC=5.0mA

VCC=5.0V

Vref=2.0V

－

-

0

1

μA

V

4.75

-

5.0

5.25

5

VCC current

ICC

2.5

mA

－

Vref gain rate

Thermal shutdown(TSD)

threshold (Note1)

Vref(gain)

T_jTSD

1/5.2

140

1/5.0

150

1/4.8

170

°C

VM recovery voltage

Over-current detection (ISD)

threshold (Note2)

VMR

ISD

－

7.0

3.0

8.0

4.0

9.0

5.0

V

A

Note1: About TSD

When the junction temperature of the device reached the TSD threshold, the TSD circuit is triggered; the internal reset circuit

then turns off the output transistors. Noise rejection blanking time is built-in to avoid misdetection. Once the TSD circuit is triggered,

the device will be set to standby mode, and can be cleared by reasserting the VM power source, or setting the DMODE pins

to standby mode. The TSD circuit is a backup function to detect a thermal error, therefore is not recommended to be used

aggressively.

Note2: About ISD

When the output current reaches the threshold, the ISD circuit is triggered; the internal reset circuit then turns off the output transistors.

In order to avoid malfunction due to the switching, IC have a dead time. Once the ISD circuit is triggered, the device keeps

the output off until power-on reset (POR), is reasserted or the device is set to standby mode by DMODE pins. For fail-safe, please insert

a fuse to avoid secondary trouble.

Back-EMF

While a motor is rotating, there is a timing at which power is fed back to the power supply. At that timing, the

motor current recirculates back to the power supply due to the effect of the motor back-EMF.

If the power supply does not have enough sink capability, the power supply and output pins of the device might

rise above the rated voltages. The magnitude of the motor back-EMF varies with usage conditions and motor

characteristics. It must be fully verified that there is no risk that the TB62215A or other components will

be damaged or fail due to the motor back-EMF.

Cautions on Overcurrent Shutdown (ISD) and Thermal Shutdown (TSD)

The ISD and TSD circuits are only intended to provide temporary protection against irregular conditions such as an

output short-circuit; they do not necessarily guarantee the complete IC safety.

If the device is used beyond the specified operating ranges, these circuits may not operate properly: then the device

may be damaged due to an output short-circuit.

The ISD circuit is only intended to provide a temporary protection against an output short-circuit. If such a

condition persists for a long time, the device may be damaged due to overstress. Overcurrent conditions must be

removed immediately by external hardware.

IC Mounting

Do not insert devices incorrectly or in the wrong orientation. Otherwise, it may cause breakdown, damage and/or

deterioration of the device.

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TB62215AFG/FTG/FNG/HQ

AC Electrical Specification (Ta = 25°C, VM = 24 V, 6.8 mH/5.7 Ω)

Characteristics

Symbol

tCLK(H)

Test condition

Min

300

Typ.

-

Max

-

Unit

ns

Inside filter of CLK input minimum

High width

The CLK(H) minimum pulse

width

Inside filter of CLK input minimum

Low width

The CLK(L) minimum pulse

width

tCLK(L)

250

-

ns

0.15

0.20

0.15

1000

1500

0.25

tr

-

μs

ns

0.10

0.20

tf

-

Output transistor

switching specific

tpLH(CLK)

tpHL(CLK)

CLK-Output

-

CLK-Output

VM=24V,IOUT=1.5A

Analog tblank

Analog noise blanking time

AtBLK

300

400

500

ns

1200 1600 2000

Oscillator reference frequency

Chopping frequency

fOSCM

fchop

COSC=270pF, ROSC=3.6kΩ

kHz

Output:Active(IOUT =1.5 A),

fOSC = 1600 kHz

-

100

-

AC Electrical Specification Timing chart

1/fCLK

tCLK(L)

50%

tCLK(H)

CLK

tpHL(CLK)

tpLH(CLK)

90%

50%

OUT

10%

tf

tr

Timing charts may be simplified for explanatory purpose.

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TB62215AFG/FTG/FNG/HQ

Package Dimensions

HSOP28-P-0450-0.80

(unit :mm)

Specific figure of pins

Weight: 0.79g (typ.)

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TB62215AFG/FTG/FNG/HQ

QFN48-P-0707-0.50

(unit :mm)

Weight: 0.14g (typ.)

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TB62215AFG/FTG/FNG/HQ

HTSSOP48-P-300-0.50

(unit :mm)

Weight: 0.20g (typ.)

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TB62215AFG/FTG/FNG/HQ

HZIP25-P-1.00F

(unit :mm)

Weight: 7.6g (typ.)

Note：The tightening torque for the mounting bracket should be controlled between 0.4N・m to 0.6N・m.

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TB62215AFG/FTG/FNG/HQ

Notes on Contents

1.Block Diagrams

Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified 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.Application Circuits

The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is

required, especially at the mass-production design stage.

Toshiba does not grant any license to any industrial property rights by providing these examples of application

circuits.

5.Test Circuits

Components in the test circuits are used only to obtain and confirm the device characteristics. These components and

circuits are not guaranteed to prevent malfunction or failure from occurring in the application equipment.

IC Usage Considerations

Notes on handling of ICs

(1) 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 device

breakdown, damage or deterioration, and may result in injury by explosion or combustion.

(2)

Use an appropriate power supply fuse to ensure that a large current does not continuously flow in the

case of overcurrent and/or IC failure. The IC will fully break down when used under conditions that

exceed its absolute maximum ratings, when the wiring is routed improperly or when an abnormal pulse

noise occurs from the wiring or load, causing a large current to continuously flow and the breakdown can

lead to smoke or ignition. To minimize the effects of the flow of a large current in the case of breakdown,

appropriate settings, such as fuse capacity, fusing time and insertion circuit location, are required.

(3)

If your design includes an inductive load such as a motor coil, incorporate a protection circuit into the

design to prevent device malfunction or breakdown caused by the current resulting from the inrush

current at power ON or the negative current resulting from the back electromotive force at power OFF.

IC breakdown may cause injury, smoke or ignition. Use a stable power supply with ICs with built-in

protection functions. If the power supply is unstable, the protection function may not operate, causing IC

breakdown. IC breakdown may cause injury, smoke or ignition.

(4) Do not insert devices in the wrong orientation or incorrectly. Make sure that the positive and negative

terminals of power supplies are connected properly.

Otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding

the rating(s) may cause device breakdown, damage or deterioration, and may result in injury by

explosion or combustion.

In addition, do not use any device inserted in the wrong orientation or incorrectly to which current is

applied even just once.

(5) Carefully select external components (such as inputs and negative feedback capacitors) and load

components (such as speakers), for example, power amp and regulator.

If there is a large amount of leakage current such as from input or negative feedback condenser, the IC

output DC voltage will increase. If this output voltage is connected to a speaker with low input withstand

voltage, overcurrent or IC failure may cause smoke or ignition. (The overcurrent may cause smoke or

ignition from the IC itself.) In particular, please pay attention when using a Bridge Tied Load (BTL)

connection-type IC that inputs output DC voltage to a speaker directly.

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TB62215AFG/FTG/FNG/HQ

Points to remember on handling of ICs

Overcurrent detection Circuit

Overcurrent detection circuits (referred to as current limiter circuits) do not necessarily protect ICs under all

circumstances. If the overcurrent detection circuits operate against the overcurrent, clear the overcurrent status

immediately.

Depending on the method of use and usage conditions, exceeding absolute maximum ratings may cause the

overcurrent detection circuit to operate improperly or IC breakdown may occur before operation. In addition,

depending on the method of use and usage conditions, if overcurrent continues to flow for a long time after operation,

the IC may generate heat resulting in breakdown.

Thermal Shutdown Circuit

Thermal shutdown circuits do not necessarily protect ICs under all circumstances. If the thermal shutdown circuits

operate against the over-temperature, clear the heat generation status immediately.

Depending on the method of use and usage conditions, exceeding absolute maximum ratings may cause the thermal

shutdown circuit to operate improperly or IC breakdown to occur before operation.

Heat Radiation Design

When using an IC with large current flow such as power amp, regulator or driver, design the device so that heat is

appropriately radiated, in order not to exceed the specified junction temperature (Tj) at any time or under any

condition. These ICs generate heat even during normal use. An inadequate IC heat radiation design can lead to

decrease in IC life, deterioration of IC characteristics or IC breakdown. In addition, when designing the device, take

into consideration the effect of IC heat radiation with peripheral components.

Back-EMF

When a motor rotates in the reverse direction, stops or slows abruptly, current flows back to the motor’s power

supply owing to the effect of back-EMF. If the current sink capability of the power supply is small, the device’s motor

power supply and output pins might be exposed to conditions beyond the absolute maximum ratings. To avoid this

problem, take the effect of back-EMF into consideration in system design.

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TB62215AFG/FTG/FNG/HQ

RESTRICTIONS ON PRODUCT USE

• Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information in

this document, and related hardware, software and systems (collectively "Product") without notice.

• This document and any information herein may not be reproduced without prior written permission from TOSHIBA. Even with TOSHIBA's

written permission, reproduction is permissible only if reproduction is without alteration/omission.

• Though TOSHIBA works continually to improve Product's quality and reliability, Product can malfunction or fail. Customers are

responsible for complying with safety standards and for providing adequate designs and safeguards for their hardware, software and

systems which minimize risk and avoid situations in which a malfunction or failure of Product could cause loss of human life, bodily injury

or damage to property, including data loss or corruption. Before customers use the Product, create designs including the Product, or

incorporate the Product into their own applications, customers must also refer to and comply with (a) the latest versions of all relevant

TOSHIBA information, including without limitation, this document, the specifications, the data sheets and application notes for Product

and the precautions and conditions set forth in the "TOSHIBA Semiconductor Reliability Handbook" and (b) the instructions for the

application with which the Product will be used with or for. Customers are solely responsible for all aspects of their own product design or

applications, including but not limited to (a) determining the appropriateness of the use of this Product in such design or applications; (b)

evaluating and determining the applicability of any information contained in this document, or in charts, diagrams, programs, algorithms,

sample application circuits, or any other referenced documents; and (c) validating all operating parameters for such designs and

applications. TOSHIBA ASSUMES NO LIABILITY FOR CUSTOMERS' PRODUCT DESIGN OR APPLICATIONS.

• PRODUCT IS NEITHER INTENDED NOR WARRANTED FOR USE IN EQUIPMENTS OR SYSTEMS THAT REQUIRE

EXTRAORDINARILY HIGH LEVELS OF QUALITY AND/OR RELIABILITY, AND/OR A MALFUNCTION OR FAILURE OF WHICH MAY

CAUSE LOSS OF HUMAN LIFE, BODILY INJURY, SERIOUS PROPERTY DAMAGE AND/OR SERIOUS PUBLIC IMPACT

("UNINTENDED USE"). Except for specific applications as expressly stated in this document, Unintended Use includes, without

limitation, equipment used in nuclear facilities, equipment used in the aerospace industry, medical equipment, equipment used for

automobiles, trains, ships and other transportation, traffic signaling equipment, equipment used to control combustions or explosions,

safety devices, elevators and escalators, devices related to electric power, and equipment used in finance-related fields. IF YOU USE

PRODUCT FOR UNINTENDED USE, TOSHIBA ASSUMES NO LIABILITY FOR PRODUCT. For details, please contact your TOSHIBA

sales representative.

• Do not disassemble, analyze, reverse-engineer, alter, modify, translate or copy Product, whether in whole or in part.

• Product shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any

applicable laws or regulations.

• The information contained herein is presented only as guidance for Product use. No responsibility is assumed by TOSHIBA for any

infringement of patents or any other intellectual property rights of third parties that may result from the use of Product. No license to any

intellectual property right is granted by this document, whether express or implied, by estoppel or otherwise.

• ABSENT A WRITTEN SIGNED AGREEMENT, EXCEPT AS PROVIDED IN THE RELEVANT TERMS AND CONDITIONS OF SALE

FOR PRODUCT, AND TO THE MAXIMUM EXTENT ALLOWABLE BY LAW, TOSHIBA (1) ASSUMES NO LIABILITY WHATSOEVER,

INCLUDING WITHOUT LIMITATION, INDIRECT, CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES OR LOSS, INCLUDING

WITHOUT LIMITATION, LOSS OF PROFITS, LOSS OF OPPORTUNITIES, BUSINESS INTERRUPTION AND LOSS OF DATA, AND

(2) DISCLAIMS ANY AND ALL EXPRESS OR IMPLIED WARRANTIES AND CONDITIONS RELATED TO SALE, USE OF PRODUCT,

OR INFORMATION, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR

PURPOSE, ACCURACY OF INFORMATION, OR NONINFRINGEMENT.

• Do not use or otherwise make available Product or related software or technology for any military purposes, including without limitation,

for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile technology

products (mass destruction weapons). Product and related software and technology may be controlled under the applicable export laws

and regulations including, without limitation, the Japanese Foreign Exchange and Foreign Trade Law and the U.S. Export Administration

Regulations. Export and re-export of Product or related software or technology are strictly prohibited except in compliance with all

applicable export laws and regulations.

• Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product.

Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances,

including without limitation, the EU RoHS Directive. TOSHIBA ASSUMES NO LIABILITY FOR DAMAGES OR LOSSES OCCURRING

AS A RESULT OF NONCOMPLIANCE WITH APPLICABLE LAWS AND REGULATIONS.

2015-9-24

29


型号：	TB62215AFNG
厂家：	TOSHIBA
描述：	Stepping Motor Driver ICs, TB62215AFNG 电动机控制 CD 光电二极管
文件：	总29页 (文件大小：828K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

TB62215AFNG [TOSHIBA]

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