FAN8728_技术文档

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FAN8728

Spindle + 4-CH Input PWM Motor Drive IC

Features

ꢀ ꢁꢂꢃꢄꢅꢆꢃꢇꢈꢉꢊꢋꢌꢍꢈꢎꢏꢐꢌꢈꢑꢃꢍꢒꢂꢃꢅ

Description

ꢕꢖꢌꢈꢛ/012*1ꢈꢃ"ꢈꢏꢈꢔꢊꢇꢊꢄꢃꢅꢖꢃꢒꢈꢃꢇꢅꢌꢝꢍꢏꢅꢌꢗꢈꢒꢃꢍꢒꢂꢃꢅꢈ"ꢂꢃꢅꢏ3ꢄꢌꢈ%ꢊꢍꢈꢏꢈ

#ꢆꢒꢖꢈꢔꢊꢅꢊꢍꢈꢗꢍꢃꢐꢌꢍꢈꢋꢖꢃꢒꢖꢈꢗꢍꢃꢐꢌ"ꢈꢅꢖꢌꢈꢅꢍꢏꢒ4ꢃꢇꢝꢈꢏꢒꢅꢂꢏꢅꢊꢍ+ꢈ%ꢊꢒꢂ"ꢈ

ꢏꢒꢅꢂꢏꢅꢊꢍ+ꢈ"ꢄꢌꢗꢈꢔꢊꢅꢊꢍ+ꢈꢄꢊꢏꢗꢃꢇꢝꢈꢔꢊꢅꢊꢍꢈꢏꢇꢗꢈ,ꢆ ꢖꢏ"ꢌꢈꢁꢓꢙꢑꢈ

" ꢃꢇꢗꢄꢌꢈꢔꢊꢅꢊꢍꢈꢊ%ꢈꢅꢖꢌꢈ&ꢙꢉ5ꢑ/!ꢆ&ꢙ5ꢑ/!ꢆ0/.6ꢜ/ꢕ6ꢞ0ꢈ

"7"ꢅꢌꢔ-

ꢀ ꢁꢂꢃꢄꢅꢆꢃꢇꢈꢑꢂꢍꢍꢌꢇꢅꢈꢓꢃꢔꢃꢅꢈꢑꢃꢍꢒꢂꢃꢅ

ꢀ ꢁꢂꢃꢄꢅꢆꢃꢇꢈꢕꢖꢌꢍꢔꢏꢄꢈꢎꢖꢂꢅꢗꢊꢋꢇꢈꢑꢃꢍꢒꢂꢃꢅꢈꢘꢕꢎꢙꢚ

ꢀ ꢁꢂꢃꢄꢅꢆꢃꢇꢈꢛꢜꢈꢎꢃꢝꢇꢏꢄꢈꢞꢂꢅ ꢂꢅꢈꢑꢃꢍꢒꢂꢃꢅ

ꢀ ꢁꢂꢃꢄꢅꢆꢃꢇꢈ!ꢊꢅꢏꢅꢃꢊꢇꢏꢄꢈꢙꢃꢍꢌꢒꢅꢃꢊꢇꢈꢙꢌꢅꢌꢒꢅꢃꢇꢝꢈꢑꢃꢍꢒꢂꢃꢅ

ꢀ ꢁꢂꢃꢄꢅꢆꢃꢇꢈꢉꢍꢊꢅꢌꢒꢅꢃꢊꢇꢈꢑꢃꢍꢒꢂꢃꢅꢈꢛꢊꢍꢈ!ꢌꢐꢌꢍ"ꢌꢈ!ꢊꢅꢏꢅꢃꢊꢇ

ꢀ ꢁꢂꢃꢄꢅꢆꢃꢇꢈ#ꢆꢑ$ꢈꢁꢏꢄꢏꢇꢒꢌꢗꢈꢕꢍꢏꢇ"%ꢊꢍꢔꢌꢍꢄꢌ""ꢈꢘꢁꢕꢓꢚꢈꢙꢍꢃꢐꢌꢍ

ꢀ ꢁꢂꢃꢄꢅꢆꢃꢇꢈꢁꢕꢓꢈ&'ꢕ(ꢈꢑꢃꢍꢒꢂꢃꢅꢈꢘꢑ$)ꢆ*+ꢈꢑ$,ꢈꢏꢇꢗꢈꢑ$#ꢚ

ꢀ ꢑꢊꢍꢍꢌ" ꢊꢇꢗ"ꢈꢅꢊꢈ,-,.ꢈꢙꢎꢉ

48-QFPH-1414

Typical Applications

ꢀ &ꢃꢇꢃꢈꢙꢃ"4ꢈꢉꢄꢏ7ꢌꢍ

Ordering Information

Device

Package

Operating Temp

ꢀ ꢙꢃꢝꢃꢅꢏꢄꢈ.ꢃꢗꢌꢊꢈꢙꢃ"4ꢈꢉꢄꢏ7ꢌꢍ

ꢀ ꢑꢏꢍꢈ&ꢃꢇꢃꢈꢙꢃ"4ꢈꢉꢄꢏ7ꢌꢍ

ꢀ ꢑꢏꢍꢈ0ꢏꢐꢃꢝꢏꢅꢃꢊꢇꢈꢎ7"ꢅꢌꢔ

FAN8728

48-QFPH-1414

−ꢀ5°C ~ 8ꢁ°C

Rev. 1.0.0

FAN8728

Pin Assignments

48

47

46

45

44

43

42

41

40

39

38

37

1

2

3

4

36

35

34

ꢕꢑꢅ

ꢕꢑꢃ

ꢆꢇꢂ

ꢀꢁꢂꢃ

ꢀꢁꢂꢅ

ꢀꢁꢄꢃ

ꢕꢊꢅ

ꢕꢊꢃ

33

32

ꢀꢁꢄꢅ

5

ꢕꢄꢅ

ꢕꢄꢃ

6

31

ꢈꢉꢇꢀꢊ

ꢀꢁꢂꢃꢄꢅꢃ

ꢀꢁꢊꢃ

ꢀꢁꢊꢅ

7

30

ꢔꢉ

8

9

ꢀꢆꢓ

29

28

27

ꢏꢒꢐꢐꢑ

ꢒꢋꢑ

ꢀꢁꢑꢃ

ꢀꢁꢑꢅ

ꢁꢌꢍꢑ

10

11

26

ꢐꢏꢑ

ꢆꢇꢑꢃ

ꢈꢉꢇꢀꢑ

12

25

13

16

18

19

20

24

14

15

17

21

22

23

2

FAN8728

Pin Definitions

Pin Number

Pin Name

H1+

I/O

I

Pin Function Descrition

1

Hall1(+) Input

Hall1(-) Input

Hall2(+) Input

Hall2(-) Input

Hall3(+) Input

Hall3(-) Input

FG Output

2

H1-

I

3

H2+

I

4

H2-

I

5

H3+

I

6

H3-

I

7

FG

O

-

8

DIR

Direction

9

SVCC1

VM1

CS1

SIGNAL VCC1

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

-

Motor Power Supply

Current Sensor

I

PGND1

A3

-

Power Ground

O

-

3-Phase Output 3

A2

3-Phase Output 2

A1

3-Phase Output 1

SGND

IN3+

IN3-

Signal Ground

I

Op-amp CH3 Input(+)

Op-amp CH3 Input(-)

Op-amp CH3 Output

Op-amp CH2 Input(+)

Op-amp CH2 Input(-)

Op-amp CH2 Output

BTL CH1,2 Supply Voltage

Op-amp CH2 Input(+)

Op-amp CH2 Input(-)

Op-amp CH2 Output

BTL Drive 1 Output(+)

BTL Drive 1 Output(-)

BTL Drive 2 Output(+)

BTL Drive 2 Output(-)

BTL Power Gnd

I

OUT3

IN2+

IN2-

O

I

OUT2

VM2

IN2+

IN2-

O

-

I

OUT2

DO1+

DO1-

DO2+

DO2-

PGND2

DO3+

DO3-

O

-

O

BTL Drive 3 Output(+)

BTL Drive 3 Output(-)

3

FAN8728

Pin Definitions ^(Continued)

Pin Number

Pin Name

DO4+

DO4-

I/O

Pin Function Descrition

BTL Drive 4 Output(+)

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

O

I

BTL Drive 4 Output(-)

BTL CH4 Input

IN4

VREF4

VM4

I

BTL CH4 Reference

BTL CH4 Motor Supply

BTL CH3 Motor Supply

BTL Signal VCC

-

VM3

-

SVCC2

VREF123

MUTE123

MUTE4

SS

-

I

BTL CH1,2,3 Rference

BTL CH1,2,3 Mute

I

BTL CH4 Mute

I

Spindle Start/Stop

OUTS

INS-

O

I

Opamp Spindle Output

Opamp Spindle Input(-)

Opamp Spindle Input(+)

Phase Compesation Cap.

INS+

I

PC1

I

4

FAN8728

Internal Block Diagram

48

47

46

45

44

43

42

41

40

39

38

37

1

2

3

4

5

6

36

35

34

33

32

31

H1+

H1-

IN4

DO4-

DO4+

DO3-

ꢀꢁ

ꢀꢁꢂ

ꢃꢄꢅꢆ

H2+

H2-

Absolute Values

Current

VM4

VM3

Sense Amp

ꢃꢄꢅꢆ

H3+

H3-

DO3+

Output

Current Limit

PGND2

Detection

FIN(GND)

DO2-

Logic

ꢃꢄꢅꢆ

Reverse

Rotation

7

8

30

29

28

27

26

25

FG

VM2

DIR

DO2+

DO1-

DO1+

9

SVCC1

VM1

ꢃꢄꢅꢆ

Distributor

10

11

12

VM2

CS1

OUT1

IN1-

PGND1

Driver

13

14

15

16

17

18

19

20

21

22

23

24

5

FAN8728

Equivalent Circuits

FG Signal Output

Phase Compensation Capacitor

ꢀ

ꢀꢁ

ꢀ

ꢀꢁꢂꢃ

ꢁꢂ

ꢀ

ꢄꢃ

Current Detector

Start/Stop

ꢀ

ꢂꢄꢄꢃ

ꢂꢂ

ꢀ

ꢁꢃ

ꢁꢁ

ꢀ

ꢀꢁ

ꢁꢄꢃ

ꢀ

ꢅꢄꢃ

BTL Drive Mute

BTL Bias Voltage

ꢂꢃ

ꢀꢁ

ꢁꢄ

ꢁꢃ

ꢀ

ꢂꢀ

ꢄꢂ

ꢀ

ꢀꢁ

ꢁꢄꢃ

ꢅꢄꢃ

6

FAN8728

Equivalent Circuits ^(Continued)

3-Phase Rotational Direction Output

BTL Drive Output

ꢄꢀ

ꢄꢂ

ꢂ

ꢀ

ꢀꢁ

ꢀ

ꢄꢀꢃ

ꢄꢅ

ꢃꢇ

ꢃꢄ

ꢃꢃ

ꢀ

ꢅꢀꢃ

ꢃꢁ

ꢃꢆ

3-Phase Output

BTL Drive Input

ꢀ

ꢂꢁꢃ

ꢈꢃ

ꢈꢁ

ꢈꢆ

ꢃꢉ

ꢀ

ꢁꢄ

ꢀꢁ

7

FAN8728

Absolute Maximum Ratings ( Ta=25°C)

Parameter

Symbol

Value

Unit

Supply Voltage (BTL Signal)

Supply Voltage (Spindle Signal)

Supply Voltage (Motor)

Supply Voltage (BTL Motor)

Power Dissipation

Operating Temperature Range

Storge Temperature Range

Maximum Output Current (Spindle Part)

Maximum Output Current (BTL Part)

SV

15

7

15

V

CC2max

CC1max

V

Mmax

M2,3,4max

Pd

V

15

V

2.7^note

-35 ~ +85

-55 ~ +150

1.3

W

°C

A

Topr

Tstg

I

OMAXS

OMAXB

1

A

Note :

1. When mounted on 70mm × 1.6mm PCB (Phenolic resin material)

2. Power dissipation is reduced 21.6mW/°C for using above Ta = 25°C

3. Do not exceed Pd and SOA.

Pd [mW]

3,000

2,000

1,000

0

Ambient Temperature, Ta [°C]

0

25

50

75

100

125

150 175

Recommended Operating Conditions ( Ta=25°C)

Parameter

Symbol

Min.

4.5

Typ.

Max.

13.2

5.5

Unit

V

Operating Supply Voltage (BTL Signal)

Operating Supply Voltage (Spindle Signal)

Operating Supply Voltage ( Spindle Motor)

Operating Supply Voltage (BTL Motor)

SV

V

-

CC2

CC1

V

13.2

V

M1

V

M2,3,4

8

FAN8728

Electrical Characteristics

(Ta=25°C, SV

=5V, V =8V)

M1

CC1

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

Circuit Current 2

I

Start/Stop =5V

-

6

-

mA

CC2

START/STOP

SS On Voltage Range

SS Off Voltage Range

HALL AMP

V

L-H Circuit On

H-L Circuit Off

2.5

-

V

SSON

V

1.0

SSOFF

Hall Bias Current

I

-

1

-

5

4.0

-

uA

V

HA

In-phase in Voltage Range

Minimum in Level

V

1.5

60

HAR

V

-

mVpp

INH

TORQUE CONTROL

Offset Voltage (-)

E

=1.65V

-100

20

-50

50

-20

100

0.84

mV

COFF-

E

COFF+

CR

Offset Voltage (+)

In/output Gain

G

EC

=1.65V, R =0.5Ω

CS

0.56

0.71

A / V

FG

FG Output Voltage (L)

Input Voltage Range

OUTPUT BLOCK

V

I

=10uA

FG

-

0.5

4.0

V

FHL

V

Hn+, Hn- input D-range

1.5

FGR

Saturation Voltage (upper TR)

Saturation Voltage (lower TR)

Torque Limit Current

DIRECTION DETECTOR

Dir Output Voltage (L)

V

I = -300mA

-

0.9

0.2

700

1.6

0.6

840

V

OH

O

V

I =300mA

O

OL

TL

I

R =0.5Ω

CS

560

mA

V

I

=10uA

FG

-

0.5

V

DIRL

9

FAN8728

Electrical Characteristics ^(continued)

BTL Drive Part (Ta=25°C, SV

=8V, V =8V, R =24Ω)

M2,3,4 L

CC2

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

BTL DRIVE PART

Quiescent Circuit Current

CH Mute123 Off Voltage

CH Mute123 On Voltage

CH Mute4 Off Voltage

CH Mute4 On Voltage

I

-

20

-

1.0

-

mA

V

CC3

V

pin42= Variation

plin42 = Variation

pin43 = Variation

MOFF123

V

2.5

-

V

MON123

V

-

1.0

-

V

MOFF4

V

2.5

-

V

MON4

CH1,2,3(SVCC2=8V VM2=5V,RL=8Ω)

Output Offset Voltage

V

-

-50

3.6

-

+50

-

mV

V

OF1,2,3

Maximum Output

Voltage1,2,3

V

4.0

OM1,2,3

Close Loop Voltage Gain

Ripple Rejection Ratio

Slew Rate 1,2,3

G

f=1kHz, V =-0.1Vrms

IN

10.5

12.0

60

13.5

dB

VC1,2,3

RR1,2,3

SR1,2,3

f=120Hz, V =-20dB

IN

-

f=120Hz, 2Vp-p

1.0

V/us

CH4(SVCC2=8V VM4=8V,RL=12Ω)

Output Offset Voltage4

Maximum Output Voltage4

Close Loop Voltage Galin

Ripple Rejection Ratio4

Slew Rate 4

V

-

-50

6.0

10.5

-

+50

mV

V

OF4

V

6.5

12.0

60

-

OM4

G

f=1kHz, V =-0.1Vrms

IN

13.5

dB

VC4

RR4

SR4

f=120Hz, V =-20dB

IN

-

dB

f=120Hz, 2Vp-p

-

1.0

V/us

OP- AMP

Input Offset Voltage

Input Bias Current

V

-

-20

-

+20

mV

nA

V

OF

I

-

11

-

300

B1

High Level Output Voltage

Low Level Output Voltage

Output Sink Current

Output Source Current

Open Loop Voltage Gain

Ripple Rejection Ratio

Slew Rate

V

-

OHOP

V

I

-

0.1

V

OLOP

SINK

-

5.5

4.5

75

65

1

-

mA

dB

V/us

I

-

SOURCE

G

VOOP

f=1kHz, V =-75dB

IN

-

RR

f=120Hz, V =-20dB

IN

-

OP

SR

f=120Hz, 2Vp-p

-

OP

Common Mode Rejection

Ratio

CMRR

f=1kHz, V =-20dB

IN

-

80

-

dB

OP

10

FAN8728

Calculation of Gain & Torque Limit Current

VM1

−

I

O

Output

Current sense

V

S

+

R

CS

CS1 (Pin 11)

Current / Voltage

Convertor

Negative

Feedback loop

−

I

O

Vin

R1

U

V

−

Power

Transistors

-

EC

+

Driver

Gm

W

+

ECR

Absolute

Values

Commutation

Distributor

+

Vmax

−

H1

H2

H3

VM

Max. output current limiting

8-,99ꢈꢋꢖꢃꢒꢖꢈꢃ"ꢈꢔꢏꢗꢌꢈ%ꢍꢊꢔꢈꢜ&ꢈꢅꢃꢔꢌ"ꢈ!)ꢈꢃ"ꢈ%ꢃ:ꢌꢗꢈꢐꢏꢄꢂꢌꢈꢋꢃꢅꢖꢃꢇꢈ6ꢑ-

0.355

Gain ꢁ ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ

R_CS

.ꢔꢏ:ꢈꢘ"ꢌꢌꢈꢏ3ꢊꢐꢌꢈ3ꢄꢊꢒ4ꢈꢗꢃꢏꢝꢍꢏꢔꢚꢈꢃ"ꢈ"ꢌꢅꢅꢌꢗꢈꢅꢊꢈ,98ꢔ.-

Vmax

R_CSR_CS

350[mV]

Itl[mA] ꢁ ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ ꢁ ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ

Application Information

1. Mute Function

)ꢚꢈ &ꢂꢅꢌꢈꢑꢊꢇꢅꢍꢊꢄꢈ.ꢊꢄꢅꢏꢝꢌꢈꢑꢊꢇꢗꢃꢅꢃꢊꢇ

;ꢖꢌꢇꢈꢂ"ꢃꢇꢝꢈꢅꢖꢌꢈꢔꢂꢅꢌꢈ%ꢂꢇꢒꢅꢃꢊꢇ+ꢈꢅꢖꢌꢈꢏ ꢄꢃꢌꢗꢈꢒꢊꢇꢅꢍꢊꢄꢈꢐꢊꢄꢅꢏꢝꢌꢈꢒꢊꢇꢗꢃꢅꢃꢊꢇꢈꢃ"ꢈꢏ"ꢈ%ꢊꢄꢄꢊꢋ"-

MUTE123,4 ON

2.5[V] above

Voltage

Mute function operation

Normal operation

MUTE123,4 OFFꢀVoltage

OPEN or 0.5[V] below

*ꢚ ꢎꢌ ꢏꢍꢏꢅꢌꢗꢈꢑꢖꢏꢇꢇꢌꢄꢈ&ꢂꢅꢌꢈꢛꢂꢇꢒꢅꢃꢊꢇ

ꢕꢖꢌ"ꢌꢈ ꢃꢇ"ꢈꢏꢍꢌꢈꢂ"ꢌꢗꢈ%ꢊꢍꢈꢃꢇꢗꢃꢐꢃꢗꢂꢏꢄꢈꢒꢖꢏꢇꢇꢌꢄꢈꢔꢂꢅꢌꢈꢊ ꢌꢍꢏꢅꢃꢊꢇ-

ꢆ ;ꢖꢌꢇꢈꢅꢖꢌꢈꢔꢂꢅꢌꢈ ꢃꢇ"ꢈꢏꢍꢌꢈꢞꢉ(0ꢈꢊꢍꢈꢅꢖꢌꢈꢐꢊꢄꢅꢏꢝꢌꢈꢊ%ꢈꢅꢖꢌꢈꢔꢂꢅꢌꢈ ꢃꢇ"ꢈꢏꢍꢌꢈ3ꢌꢄꢊꢋꢈ)<.=+ꢈꢅꢖꢌꢈꢔꢂꢅꢌꢈꢒꢃꢍꢒꢂꢃꢅꢈꢃ"ꢈ"ꢅꢊ ꢌꢗꢈꢏꢇꢗꢈꢁꢕꢓꢈꢊꢂꢅ ꢂꢅꢈ

ꢒꢃꢍꢒꢂꢃꢅ"ꢈꢊ ꢌꢍꢏꢅꢌꢈꢇꢊꢍꢔꢏꢄꢄ7-

ꢆ ;ꢖꢌꢇꢈꢅꢖꢌꢈꢔꢂꢅꢌꢈ ꢃꢇ"ꢈꢏꢍꢌꢈꢏ3ꢊꢐꢌꢈ*-9<.=+ꢈꢅꢖꢌꢈꢔꢂꢅꢌꢈꢒꢃꢍꢒꢂꢃꢅ"ꢈꢏꢍꢌꢈꢏꢒꢅꢃꢐꢏꢅꢌꢗꢈ"ꢊꢈꢅꢖꢏꢅꢈꢅꢖꢌꢈꢁꢕꢓꢈꢊꢂꢅ ꢂꢅꢈꢒꢃꢍꢒꢂꢃꢅ"ꢈꢋꢃꢄꢄꢈ3ꢌꢈꢔꢂꢅꢌꢗ-

ꢆ 6%ꢈꢅꢖꢌꢈ>ꢂꢇꢒꢅꢃꢊꢇꢈꢅꢌꢔ ꢌꢍꢏꢅꢂꢍꢌꢈꢍꢃ"ꢌ"ꢈꢏ3ꢊꢐꢌꢈ)?9°ꢑ+ꢈꢅꢖꢌꢇꢈꢅꢖꢌꢈꢅꢖꢌꢍꢔꢏꢄꢈ"ꢖꢂꢅꢗꢊꢋꢇꢈꢘꢕꢎꢙꢚꢈꢒꢃꢍꢒꢂꢃꢅꢈꢃ"ꢈꢏꢒꢅꢃꢐꢏꢅꢌꢗꢈꢏꢇꢗꢈꢏꢄꢄꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈ

ꢒꢃꢍꢒꢂꢃꢅ"ꢈꢘ#ꢆꢑ$ꢈꢁꢕꢓꢈꢙꢍꢃꢐꢌꢍ"ꢈꢏꢇꢗꢈ,ꢆ ꢖꢏ"ꢌꢈꢁꢓꢙꢑꢈꢙꢍꢃꢐꢌꢍꢚꢈꢏꢍꢌꢈꢔꢂꢅꢌꢗ-

,ꢚꢈ ꢛꢜꢈꢏꢇꢗꢈꢙꢃꢍꢈꢎꢃꢝꢇꢏꢄ-

ꢆ ꢛꢜꢈꢏꢇꢗꢈꢙ6!ꢈ"ꢃꢝꢇꢏꢄꢈꢃ"ꢈꢃꢇꢗꢌ ꢌꢇꢗꢌꢇꢅꢈꢅꢊꢈꢎꢎꢘ ꢃꢇ##ꢚꢈꢃꢇ ꢂꢅ-

11

FAN8728

2. CH1,2,3 Balanced Transformerless (BTL) Drive (Error Amp Included)

VCC

Q1

Q2

DRIVE

AMP

DRIVE

AMP

M

32

29

27

33

30

X2

28

Q3

Q4

GND

17

20

24

41

Vref123

+

LEVEL

SHIFT

AMP1

18

21

25

+

−

.ꢃꢇ

19

22

26

ꢆ ꢕꢖꢌꢈꢐꢊꢄꢅꢏꢝꢌ+ꢈ.3ꢃꢏ"+ꢈꢃ"ꢈꢅꢖꢌꢈꢍꢌ%ꢌꢍꢌꢇꢒꢌꢈꢐꢊꢄꢅꢏꢝꢌꢈꢝꢃꢐꢌꢇꢈ37ꢈꢅꢖꢌꢈꢌ:ꢅꢌꢍꢇꢏꢄꢈ3ꢃꢏ"ꢈꢐꢊꢄꢅꢏꢝꢌꢈꢊ%ꢈ ꢃꢇꢈ#)--

ꢆ ꢕꢖꢌꢈꢄꢌꢐꢌꢄꢈ"ꢖꢃ%ꢅꢈ ꢍꢊꢗꢂꢒꢌ"ꢈꢅꢖꢌꢈꢒꢂꢍꢍꢌꢇꢅꢈꢗꢂꢌꢈꢅꢊꢈꢅꢖꢌꢈꢗꢃ%%ꢌꢍꢌꢇꢒꢌꢈ3ꢌꢅꢋꢌꢌꢇꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈ"ꢃꢝꢇꢏꢄꢈꢘ.ꢃꢇꢚꢈꢏꢇꢗꢈꢅꢖꢌꢈꢏꢍ3ꢃꢅꢍꢏꢍ7ꢈꢍꢌ%ꢌꢍꢌꢇꢒꢌꢈ

ꢐꢊꢄꢅꢏꢝꢌꢈꢘ.3ꢃꢏ"ꢚ-ꢈꢕꢖꢌꢈꢒꢂꢍꢍꢌꢇꢅꢈ ꢍꢊꢗꢂꢒꢌꢗꢈꢏ"ꢈ@ꢈ∆6ꢈꢏꢇꢗꢈꢆꢈ∆6ꢈꢏꢍꢌꢈ%ꢌꢗꢈꢃꢇꢅꢊꢈꢅꢖꢌꢈꢗꢍꢃꢐꢌꢈ3ꢂ%%ꢌꢍ"-

ꢆ ꢕꢖꢌꢈꢗꢍꢃꢐꢌꢈ3ꢂ%%ꢌꢍꢈꢊ ꢌꢍꢏꢅꢌ"ꢈꢅꢖꢌꢈ ꢊꢋꢌꢍꢈꢕ!ꢈꢊ%ꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈ"ꢅꢏꢝꢌꢈꢏꢒꢒꢊꢍꢗꢃꢇꢝꢈꢅꢊꢈꢅꢖꢌꢈ"ꢅꢏꢅꢌꢈꢊ%ꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈ"ꢃꢝꢇꢏꢄ-

ꢆ ꢕꢖꢌꢈꢊꢂꢅ ꢂꢅꢈ"ꢅꢏꢝꢌꢈꢃ"ꢈꢅꢖꢌꢈꢁꢕꢓꢈꢗꢍꢃꢐꢌꢍ+ꢈꢏꢇꢗꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈꢘꢊꢍꢈꢏꢒꢅꢂꢏꢅꢊꢍꢚꢈꢃ"ꢈꢍꢊꢅꢏꢅꢃꢇꢝꢈꢃꢇꢈ%ꢊꢍꢋꢏꢍꢗꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇꢈ37ꢈꢊ ꢌꢍꢏꢅꢃꢇꢝꢈꢕ!ꢈA)ꢈꢏꢇꢗꢈ

ꢕ!ꢈA#-ꢈꢞꢇꢈꢅꢖꢌꢈꢊꢅꢖꢌꢍꢈꢖꢏꢇꢗ+ꢈꢃ%ꢈꢕ!ꢈA*ꢈꢏꢇꢗꢈꢕ!ꢈA,ꢈꢏꢍꢌꢈꢊ ꢌꢍꢏꢅꢃꢇꢝ+ꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈꢘꢊꢍꢈꢏꢒꢅꢂꢏꢅꢊꢍꢚꢈꢃ"ꢈꢍꢊꢅꢏꢅꢃꢇꢝꢈꢃꢇꢈꢍꢌꢐꢌꢍ"ꢌꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇ-ꢈ

ꢆ ꢈ.ꢃꢇꢈꢃ"ꢈ3ꢌꢄꢊꢋꢈꢅꢖꢌꢈ.3ꢃꢏ"+ꢈꢅꢖꢌꢇꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈꢘꢏꢒꢅꢂꢏꢅꢊꢍꢚꢈꢃ"ꢈꢃꢇꢈ%ꢊꢍꢋꢏꢍꢗꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇ-

12

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3. CH4 Balanced Transformerless (BTL) Driver

VCC

Q1

DRIVE

Q2

Q4

DRIVE

AMP

M

AMP

34

35

X2

Q3

GND

37

Vref4

+

LEVEL

SHIFT

AMP1

−

Vin

Rextern

36

10k

ꢆ ꢕꢖꢌꢈꢐꢊꢄꢅꢏꢝꢌ+ꢈ.3ꢃꢏ"+ꢈꢃ"ꢈꢅꢖꢌꢈꢍꢌ%ꢌꢍꢌꢇꢒꢌꢈꢐꢊꢄꢅꢏꢝꢌꢈꢝꢃꢐꢌꢇꢈ37ꢈꢅꢖꢌꢈꢌ:ꢅꢌꢍꢇꢏꢄꢈ3ꢃꢏ"ꢈꢐꢊꢄꢅꢏꢝꢌꢈꢊ%ꢈ ꢃꢇꢈ,2-

ꢆ ꢕꢖꢌꢈꢃꢇ ꢂꢅꢈ"ꢃꢝꢇꢏꢄ"+ꢈ.ꢃꢇ+ꢈꢅꢖꢍꢊꢂꢝꢖꢈꢅꢖꢌꢈ ꢃꢇ"ꢈꢘ ꢃꢇꢈ,?ꢚꢈꢏꢍꢌꢈꢏꢔ ꢄꢃ%ꢃꢌꢗꢈ)8B5!ꢌ:ꢅꢌꢍꢇꢈꢅꢃꢔꢌ"ꢈꢏꢇꢗꢈꢅꢖꢌꢇꢈ%ꢌꢗꢈꢅꢊꢈꢅꢖꢌꢈꢄꢌꢐꢌꢄꢈ"ꢖꢃ%ꢅ-

ꢆ ꢕꢖꢌꢈꢄꢌꢐꢌꢄꢈ"ꢖꢃ%ꢅꢈ ꢍꢊꢗꢂꢒꢌ"ꢈꢅꢖꢌꢈꢒꢂꢍꢍꢌꢇꢅꢈꢗꢂꢌꢈꢅꢊꢈꢅꢖꢌꢈꢗꢃ%%ꢌꢍꢌꢇꢒꢌꢈ3ꢌꢅꢋꢌꢌꢇꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈ"ꢃꢝꢇꢏꢄꢈꢘ.ꢃꢇꢚꢈꢏꢇꢗꢈꢅꢖꢌꢈꢏꢍ3ꢃꢅꢍꢏꢍ7ꢈꢍꢌ%ꢌꢍꢌꢇꢒꢌꢈ

ꢐꢊꢄꢅꢏꢝꢌꢈꢘ.3ꢃꢏ"ꢚ-ꢈꢕꢖꢌꢈꢒꢂꢍꢍꢌꢇꢅꢈ ꢍꢊꢗꢂꢒꢌꢗꢈꢏ"ꢈ@ꢈ∆6ꢈꢏꢇꢗꢈꢆꢈ∆6ꢈꢏꢍꢌꢈ%ꢌꢗꢈꢃꢇꢅꢊꢈꢅꢖꢌꢈꢗꢍꢃꢐꢌꢈ3ꢂ%%ꢌꢍ"-

ꢆ ꢕꢖꢌꢈꢗꢍꢃꢐꢌꢈ3ꢂ%%ꢌꢍꢈꢊ ꢌꢍꢏꢅꢌ"ꢈꢅꢖꢌꢈ ꢊꢋꢌꢍꢈꢕ!ꢈꢊ%ꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈ"ꢅꢏꢝꢌꢈꢏꢒꢒꢊꢍꢗꢃꢇꢝꢈꢅꢊꢈꢅꢖꢌꢈ"ꢅꢏꢅꢌꢈꢊ%ꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈ"ꢃꢝꢇꢏꢄꢘ.ꢃꢇꢚ-

ꢆ ꢕꢖꢌꢈꢊꢂꢅ ꢂꢅꢈ"ꢅꢏꢝꢌꢈꢃ"ꢈꢅꢖꢌꢈꢁꢕꢓꢈꢗꢍꢃꢐꢌꢍ+ꢈꢏꢇꢗꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈꢃ"ꢈꢍꢊꢅꢏꢅꢃꢇꢝꢈꢃꢇꢈ%ꢊꢍꢋꢏꢍꢗꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇꢈ37ꢈꢊ ꢌꢍꢏꢅꢃꢇꢝꢈꢕ!ꢈA)ꢈꢏꢇꢗꢈꢕ!ꢈA#-ꢈꢞꢇꢈꢅꢖꢌꢈ

ꢊꢅꢖꢌꢍꢈꢖꢏꢇꢗ+ꢈꢃ%ꢈꢕ!ꢈA*ꢈꢏꢇꢗꢈꢕ!ꢈA,ꢈꢏꢍꢌꢈꢊ ꢌꢍꢏꢅꢃꢇꢝ+ꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈꢃ"ꢈꢍꢊꢅꢏꢅꢃꢇꢝꢈꢃꢇꢈꢍꢌꢐꢌꢍ"ꢌꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇ-ꢈ

ꢆ ;ꢖꢌꢇꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈ"ꢃꢝꢇꢏꢄꢈ.ꢃꢇ+ꢈꢅꢖꢍꢊꢂꢝꢖꢈꢅꢖꢌꢈ ꢃꢇꢈꢘ ꢃꢇꢈ,?ꢚꢈꢃ"ꢈ3ꢌꢄꢊꢋꢈꢅꢖꢌꢈ.3ꢃꢏ"+ꢈꢅꢖꢌꢇꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈꢃ"ꢈꢃꢇꢈ%ꢊꢍꢋꢏꢍꢗꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇ-

ꢆ ;ꢖꢌꢇꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈ"ꢃꢝꢇꢏꢄꢈ.ꢃꢇ+ꢈꢅꢖꢍꢊꢂꢝꢖꢈꢅꢖꢌꢈ ꢃꢇꢈꢘ ꢃꢇꢈ,?ꢚꢈꢃ"ꢈꢏ3ꢊꢐꢌꢈꢅꢖꢌꢈ.3ꢃꢏ"+ꢈꢅꢖꢌꢇꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈꢃ"ꢈꢃꢇꢈꢍꢌꢐꢌꢍ"ꢌꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇ-

ꢆ 6%ꢈ7ꢊꢂꢈꢋꢏꢇꢅꢈꢅꢊꢈꢒꢖꢏꢇꢝꢌꢈꢅꢖꢌꢈꢝꢏꢃꢇ+ꢈꢅꢖꢌꢇꢈꢔꢊꢗꢃ%7ꢈꢅꢖꢌꢈꢌ:ꢅꢌꢍꢇꢏꢄꢈꢍꢌ"ꢃ"ꢅꢊꢍC"ꢈꢐꢏꢄꢂꢌꢈꢘ!ꢌ:ꢅꢌꢍꢇꢚ

4. Torque & Output Current Control

ꢕꢊꢍDꢂꢌꢈꢑꢊꢇꢅꢍꢊꢄꢈEꢈꢞꢂꢅ ꢂꢅꢈꢑꢂꢍꢍꢌꢇꢅꢈꢑꢊꢇꢅꢍꢊꢄ

V

M1

R

cs

+

−

V

RNF

Torque sense amp

I

O

Current sense amp

V

AMP

−

Gain

Controller

E

Driver

CR

+

M

−

TSD

E

C

ꢆ ꢁ7ꢈꢏꢔ ꢄꢃ%7ꢃꢇꢝꢈꢅꢖꢌꢈꢐꢊꢄꢅꢏꢝꢌꢈꢗꢃ%%ꢌꢍꢌꢇꢒꢌꢈ3ꢌꢅꢋꢌꢌꢇꢈ( ꢈꢏꢇꢗꢈ( ꢈ%ꢍꢊꢔꢈꢅꢖꢌꢈꢎꢌꢍꢐꢊꢈ6ꢑ+ꢈꢅꢖꢌꢈꢅꢊꢍDꢂꢌꢈ"ꢌꢇ"ꢌꢈ/&ꢉꢈ ꢍꢊꢗꢂꢒꢌ"ꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈ

ꢂ ꢂꢃ

ꢘ. ꢚꢈ%ꢊꢍꢈꢅꢖꢌꢈꢒꢂꢍꢍꢌꢇꢅꢈ"ꢌꢇ"ꢌꢈ/&ꢉ-

ꢆ ꢕꢖꢌꢈꢒꢂꢍꢍꢌꢇꢅꢈ"ꢌꢇ"ꢌꢈ/&ꢉꢈ ꢍꢊꢗꢂꢒꢌ"ꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈ%ꢊꢍꢈꢅꢖꢌꢈꢜꢏꢃꢇꢈꢒꢊꢇꢅꢍꢊꢄꢄꢌꢍꢈꢅꢊꢈꢏꢄꢄꢊꢋꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢒꢂꢍꢍꢌꢇꢅꢈꢘ6 ꢚꢈꢊ%ꢈꢅꢖꢌꢈꢗꢍꢃꢐꢌꢍꢈꢅꢊꢈ3ꢌꢈ

ꢄꢅꢆ

ꢇ

13

FAN8728

ꢒꢊꢇꢅꢍꢊꢄꢄꢌꢗꢈ37ꢈꢅꢖꢌꢈꢃꢇ ꢂꢅꢈꢐꢊꢄꢅꢏꢝꢌꢈꢘ.

ꢄꢅꢆ

ꢚ+ꢈꢋꢖꢌꢍꢌꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢒꢂꢍꢍꢌꢇꢅꢈꢘ6 ꢚꢈꢃ"ꢈꢗꢌꢅꢌꢒꢅꢌꢗꢈ37ꢈꢅꢖꢌꢈ"ꢌꢇ"ꢌꢈꢍꢌ"ꢃ"ꢅꢊꢍꢈꢘ! ꢚꢈꢏꢇꢗꢈꢃ"ꢈ

ꢇ ꢈꢉ

ꢒꢊꢇꢐꢌꢍꢅꢌꢗꢈꢃꢇꢅꢊꢈ.

-

ꢃꢈꢉ

ꢆ 6ꢇꢈꢅꢖꢌꢈꢌꢇꢗ+ꢈꢅꢖꢌꢈ"ꢃꢝꢇꢏꢄ"ꢈꢊ%ꢈꢅꢖꢌꢈꢎꢌꢍꢐꢊꢈ6ꢑꢈꢒꢊꢇꢅꢍꢊꢄꢈꢅꢖꢌꢈꢐꢌꢄꢊꢒꢃꢅ7ꢈꢊ%ꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈ37ꢈꢒꢊꢇꢅꢍꢊꢄꢄꢃꢇꢝꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢒꢂꢍꢍꢌꢇꢅꢈꢘ6 ꢚꢈꢊ%ꢈꢅꢖꢌꢈ

ꢇ

ꢗꢍꢃꢐꢌꢍ-

ꢆ ;ꢖꢌꢇꢈꢅꢖꢌꢈ>ꢂꢇꢒꢅꢃꢊꢇꢈꢅꢌꢔ ꢌꢍꢏꢅꢂꢍꢌꢈꢍꢃ"ꢌ"ꢈꢂ ꢈꢅꢊꢈꢏ3ꢊꢂꢅꢈ)?9°ꢑ+ꢈꢅꢖꢌꢇꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢗꢍꢃꢐꢌꢈꢒꢃꢍꢒꢂꢃꢅꢈꢋꢃꢄꢄꢈ3ꢌꢈ"ꢖꢂꢅꢈꢗꢊꢋꢇ-ꢈ

ꢆ ꢕꢖꢌꢈꢍꢏꢇꢝꢌꢈꢊ%ꢈꢅꢖꢌꢈꢅꢊꢍDꢂꢌꢈꢒꢊꢇꢅꢍꢊꢄꢈꢃꢇ ꢂꢅꢈꢐꢊꢄꢅꢏꢝꢌꢈꢃ"ꢈꢏ"ꢈ"ꢖꢊꢋꢇꢈ3ꢌꢄꢊꢋ-

V

RNF

[V]

Reverse

Forward

Rotation

Ec < E

Ec > E

Forward rotation

CR

Stop after detecting

reverse rotation

CR

Ecoff−

Ecoff+

3 mV

-50

+50

0

E

-E [mV]

C

CR

ꢕꢖꢌꢈꢃꢇ ꢂꢅꢈꢍꢏꢇꢝꢌꢈꢘ( ꢚꢈꢊ%ꢈꢅꢖꢌꢈꢕꢊꢍDꢂꢌꢈꢎꢌꢇ"ꢌꢈ/&ꢉꢈꢃ"ꢈ8-9.ꢈFꢈ,-,.

ꢂ

5. Thermal Shutdown (TSD) Function

;ꢖꢌꢇꢈꢅꢖꢌꢈ>ꢂꢇꢒꢅꢃꢊꢇꢈꢅꢌꢔ ꢌꢍꢏꢅꢂꢍꢌꢈꢍꢃ"ꢌ"ꢈꢂ ꢈꢅꢊꢈꢏ3ꢊꢂꢅꢈ)?9°ꢑ+ꢈꢅꢖꢌꢇꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢗꢍꢃꢐꢌꢈꢒꢃꢍꢒꢂꢃꢅꢈꢃ"ꢈ"ꢖꢂꢅꢈꢗꢊꢋꢇ+ꢈꢋꢖꢌꢇꢈꢅꢖꢌꢈ>ꢂꢇꢒꢅꢃꢊꢇꢈꢅꢌꢔ ꢌꢍꢏꢆ

ꢅꢂꢍꢌꢈ%ꢏꢄꢄ"ꢈꢊ%%ꢈꢅꢊꢈꢏ3ꢊꢂꢅꢈ)#8°ꢑ+ꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢗꢍꢃꢐꢌꢈꢒꢃꢍꢒꢂꢃꢅꢈꢋꢃꢄꢄꢈ3ꢌꢈꢇꢊꢍꢔꢏꢄꢄ7ꢈꢊ ꢌꢍꢏꢅꢌꢗ-ꢈ6ꢅꢈꢖꢏ"ꢈꢅꢖꢌꢈꢅꢌꢔ ꢌꢍꢏꢅꢂꢍꢌꢈꢖ7"ꢅꢌꢍꢌ"ꢃ"ꢈꢊ%ꢈꢏ3ꢊꢂꢅꢈ*9°ꢑ-

6. Rotational Direction Detecting Function

+

H2+

DIR

R

−

H2−

Rotation

Forward

Reverse

DIR

Low

8

D

Q

E

< E

> E

C

CR

CK

High

+

H3+

D-F/F

−

H3−

ꢆ ꢕꢖꢌꢈ%ꢊꢍꢋꢏꢍꢗꢈꢏꢇꢗꢈꢍꢌꢐꢌꢍ"ꢌꢈꢍꢊꢅꢏꢅꢃꢊꢇ"ꢈꢊ%ꢈꢅꢖꢌꢈ&ꢙꢈꢏꢍꢌꢈꢗꢌꢅꢌꢒꢅꢌꢗꢈ37ꢈꢅꢖꢌꢈꢒꢃꢍꢒꢂꢃꢅ+ꢈꢏ"ꢈ"ꢖꢊꢋꢇꢈꢃꢇꢈꢅꢖꢌꢈꢏ3ꢊꢐꢌꢈꢕꢏ3ꢄꢌ-ꢈ

ꢆ ꢕꢖꢌꢈꢍꢊꢅꢏꢅꢃꢊꢇꢏꢄꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇꢈꢊ%ꢈꢅꢖꢌꢈ&ꢙꢈꢒꢏꢇꢈ3ꢌꢈꢄꢌꢏꢍꢇꢌꢗꢈ37ꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢋꢏꢐꢌ%ꢊꢍꢔ"ꢈꢊ%ꢈꢅꢖꢌꢈꢖꢏꢄꢄꢈ"ꢌꢇ"ꢊꢍꢈꢏꢇꢗ5ꢊꢍꢈꢅꢖꢌꢈꢗꢍꢃꢐꢌꢍ-ꢈꢈꢓꢌꢅꢈꢅꢖꢌꢈ

ꢅꢖꢍꢌꢌꢈꢖꢏꢄꢄꢈ"ꢌꢇ"ꢊꢍ"ꢈ3ꢌꢈ$)+ꢈ$*ꢈꢏꢇꢗꢈ$,ꢈꢍꢌ" ꢌꢒꢅꢃꢐꢌꢄ7-ꢈ6%ꢈꢅꢖꢌꢈꢖꢏꢄꢄꢈ"ꢌꢇ"ꢊꢍ"ꢈꢅꢂꢍꢇꢈꢊꢇꢈꢃꢇꢈꢅꢖꢌꢈꢊꢍꢗꢌꢍ+ꢈ$)ꢈ→ꢈ$*ꢈ→ $,+ꢈꢊ%ꢈꢅꢖꢌꢈꢍꢌꢐꢌꢍ"ꢌꢈ

ꢍꢊꢅꢏꢅꢃꢊꢇ+ꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢋꢏꢐꢌ%ꢊꢍꢔ"ꢈꢊ%ꢈꢅꢖꢌꢈꢖꢏꢄꢄꢈ"ꢌꢇ"ꢊꢍ"ꢈꢋꢃꢄꢄꢈ3ꢌꢈꢏ"ꢈ"ꢖꢊꢋꢇꢈ3ꢌꢄꢊꢋ-

H1

H2

H3

( a)

14

FAN8728

6ꢇꢐꢌꢍ"ꢌꢄ7+ꢈꢃ%ꢈꢅꢖꢌꢈꢖꢏꢄꢄꢈ"ꢌꢇ"ꢊꢍ"ꢈꢅꢂꢍꢇꢈꢊꢇꢈꢃꢇꢈꢅꢖꢌꢈꢊꢍꢗꢌꢍ+ꢈ$,→ $*→ $)+ꢈꢊ%ꢈꢅꢖꢌꢈ%ꢊꢍꢋꢏꢍꢗꢈꢍꢊꢅꢏꢅꢃꢊꢇ+ꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢋꢏꢐꢌ%ꢊꢍꢔ"ꢈꢊ%ꢈꢅꢖꢌꢈꢖꢏꢄꢄꢈ"ꢌꢇꢆ

"ꢊꢍ"ꢈꢋꢃꢄꢄꢈ3ꢌꢈꢏ"ꢈ"ꢖꢊꢋꢇꢈꢔꢌ:ꢅꢈ ꢏꢝꢌ-

H1

H2

H3

( b)

6ꢇꢈꢅꢖꢌꢈꢒꢏ"ꢌ"ꢈꢏ3ꢊꢐꢌ+ꢈꢅꢖꢌꢈꢐꢏꢄꢂꢌꢈꢊ%ꢈ$*ꢈꢏꢅꢈꢅꢖꢌꢈ%ꢏꢄꢄꢃꢇꢝꢈꢌꢗꢝꢌ"ꢈꢊ%ꢈ$,ꢈꢃ"ꢈꢓꢊꢋꢈꢃꢇꢈ%ꢃꢝꢂꢍꢌꢈGꢏH+ꢈꢋꢖꢃꢄꢌꢈ$ꢃꢝꢖꢈꢃꢇꢈ%ꢃꢝꢂꢍꢌꢈG3H-ꢈꢕꢖꢌꢈꢍꢊꢅꢏꢅꢃꢊꢇꢏꢄꢈ

ꢗꢃꢍꢌꢒꢅꢃꢊꢇꢈꢗꢌꢅꢌꢒꢅꢊꢍꢈꢅꢏ4ꢌ"ꢈꢏꢗꢐꢏꢇꢅꢏꢝꢌꢈꢊ%ꢈꢅꢖꢃ"ꢈ ꢖꢌꢇꢊꢔꢌꢇꢊꢇ-

15

FAN8728

7. REVERSE ROTATION PREVENTING FUNCTION

E

-

C

Current

Sense

Amp

E

+

CR

H2+

+

H2−

−

D

Q

CK

H3+

+

Gain

Driver

M

Controller

−

H3−

D-F/F

ꢆ ꢕꢖꢌꢈ%ꢊꢍꢋꢏꢍꢗꢈꢏꢇꢗꢈꢍꢌꢐꢌꢍ"ꢌꢈꢍꢊꢅꢏꢅꢃꢊꢇꢈꢊ%ꢈꢅꢖꢌꢈꢔꢊꢅꢊꢍꢈꢏꢍꢌꢈꢗꢌꢅꢌꢒꢅꢌꢗ+ꢈꢏ"ꢈ"ꢖꢊꢋꢇꢈꢃꢇꢈꢅꢖꢌꢈꢅꢏ3ꢄꢌꢈ3ꢌꢄꢊꢋ+ꢈ37ꢈꢅꢖꢌꢈꢒꢃꢍꢒꢂꢃꢅꢈ"ꢖꢊꢋꢇꢈꢏ3ꢊꢐꢌ-ꢈ

ꢑꢊꢇ"ꢌDꢂꢌꢇꢅꢄ7ꢈꢏꢅꢈꢍꢌꢐꢌꢍ"ꢌꢈꢍꢊꢅꢏꢅꢃꢊꢇ+ꢈꢅꢖꢌꢈꢙꢆꢛ5ꢛꢈꢊꢂꢅ ꢂꢅꢈAꢈ3ꢌꢒꢊꢔꢌ"ꢈꢓꢊꢋꢈꢏꢇꢗꢈꢒꢂꢅ"ꢈꢊ%%ꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢒꢂꢍꢍꢌꢇꢅꢈ"ꢌꢇ"ꢌꢈ/ꢔ +ꢈꢍꢌ"ꢂꢄꢅꢃꢇꢝꢈ

ꢃꢇꢈꢅꢖꢌꢈ"ꢅꢊ ꢏꢝꢌꢈꢊ%ꢈꢅꢖꢌꢈꢜꢏꢃꢇꢈꢒꢊꢇꢅꢍꢊꢄꢄꢌꢍꢈ%ꢂꢇꢒꢅꢃꢊꢇ-

ꢆ ;ꢖꢌꢇꢈꢅꢖꢌꢈ&ꢙꢈꢃ"ꢈꢍꢊꢅꢏꢅꢃꢇꢝꢈꢃꢇꢈ%ꢊꢍꢋꢏꢍꢗꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇ+ꢈ( H( ꢈꢃ"ꢈ"ꢊꢔꢌꢅꢃꢔꢌ"ꢈꢒꢊꢇꢅꢍꢊꢄꢄꢌꢗꢈꢅꢊꢈꢍꢌꢅꢏꢍꢗꢈꢏꢇꢗ5ꢊꢍꢈ"ꢅꢊ ꢈꢅꢖꢌꢈ&ꢊꢅꢊꢍ-ꢈ/"ꢈꢅꢖꢌꢈ

ꢂ ꢂꢃ

ꢒꢊꢇꢅꢍꢊꢄꢄꢃꢇꢝꢈꢅꢃꢔꢌꢈꢊ%ꢈ( H( ꢈꢝꢌꢅ"ꢈꢄꢊꢇꢝꢌꢍ+ꢈ&ꢊꢅꢊꢍꢈ"ꢄꢊꢋ"ꢈꢗꢊꢋꢇ+ꢈ"ꢅꢊ "+ꢈꢏꢇꢗꢈꢅꢖꢌꢇꢈꢍꢊꢅꢏꢅꢌ"ꢈꢃꢇꢈꢅꢖꢌꢈꢍꢌꢐꢌꢍ"ꢌꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇ-ꢈꢕꢊꢈ ꢍꢌꢐꢌꢇꢅꢈ

ꢂ ꢂꢃ

ꢅꢖꢌꢈ&ꢊꢅꢊꢍꢈ%ꢍꢊꢔꢈꢍꢊꢅꢏꢅꢃꢇꢝꢈꢃꢇꢈꢅꢖꢌꢈꢍꢌꢐꢌꢍ"ꢌꢈꢗꢃꢍꢌꢒꢅꢃꢊꢇ+ꢈꢏꢈꢍꢌꢐꢌꢍ"ꢌꢈꢍꢊꢅꢏꢅꢃꢊꢇꢈꢍꢌ"ꢃ"ꢅꢏꢇꢅꢈ%ꢂꢇꢒꢅꢃꢊꢇꢈꢃ"ꢈꢍꢌDꢂꢃꢍꢌꢗ-ꢈ6ꢅ"ꢈꢊ ꢌꢍꢏꢅꢃꢊꢇꢏꢄꢈ ꢍꢃꢇꢒꢃ ꢄꢌ"ꢈ

ꢏꢍꢌꢈꢗꢃ"ꢒꢂ""ꢌꢗꢈ3ꢌꢄꢊꢋ-

Reverse Rotation Preventer

Rotation

H2

H3

D-F/F

DIR

E <E

E >E

C CR

C

CR

Forward

Reverse

H

L

H → L

H

L

Forward

–

Brake and Stop

Stop

H

16

FAN8728

8. HALL INPUT OUTPUT TIMMING CHART

ꢕꢖꢌꢈ,ꢆ ꢖꢏ"ꢌꢈꢖꢏꢄꢄꢈ"ꢃꢝꢇꢏꢄꢈꢃ"ꢈꢏꢔ ꢄꢃ%ꢃꢌꢗꢈꢃꢇꢈꢅꢖꢌꢈꢖꢏꢄꢄꢈꢏꢔ ꢄꢃ%ꢃꢌꢍ"ꢈꢏꢇꢗꢈ"ꢌꢇꢅꢈꢅꢊꢈꢅꢖꢌꢈꢔꢏꢅꢍꢃ:ꢈ"ꢌꢒꢅꢃꢊꢇ+ꢈꢋꢖꢌꢍꢌꢈꢅꢖꢌꢈ"ꢃꢝꢇꢏꢄꢈꢃ"ꢈ%ꢂꢍꢅꢖꢌꢍꢈꢏꢔ ꢄꢃ%ꢃꢌꢗꢈ

ꢏꢇꢗꢈꢒꢊꢔ3ꢃꢇꢌꢗ-ꢈ/%ꢅꢌꢍꢈꢅꢖꢌꢈ"ꢃꢝꢇꢏꢄꢈꢃ"ꢈꢒꢊꢇꢐꢌꢍꢅꢌꢗꢈꢅꢊꢈꢏꢈꢒꢂꢍꢍꢌꢇꢅꢈꢃꢇꢈꢅꢖꢌꢈꢏꢔ ꢄꢃꢅꢂꢗꢌꢈꢒꢊꢇꢅꢍꢊꢄꢈꢒꢃꢍꢒꢂꢃꢅ+ꢈꢅꢖꢌꢈꢒꢂꢍꢍꢌꢇꢅꢈꢃ"ꢈ"ꢂ ꢄꢃꢌꢗꢈꢅꢊꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈ

ꢗꢍꢃꢐꢌꢍ+ꢈꢋꢖꢃꢒꢖꢈꢅꢖꢌꢇꢈ ꢍꢊꢐꢃꢗꢌ"ꢈꢏꢈꢔꢊꢅꢊꢍꢈꢗꢍꢃꢐꢌꢈꢒꢂꢍꢍꢌꢇꢅ-ꢈꢕꢖꢌꢈ ꢖꢏ"ꢌ"ꢈꢊ%ꢈꢅꢖꢌꢈꢖꢏꢄꢄꢈꢃꢇ ꢂꢅꢈ"ꢃꢝꢇꢏꢄ+ꢈꢊꢂꢅ ꢂꢅꢈꢐꢊꢄꢅꢏꢝꢌ+ꢈꢏꢇꢗꢈꢊꢂꢅ ꢂꢅꢈꢒꢂꢍꢍꢌꢇꢅꢈꢏꢍꢌꢈ

"ꢖꢊꢋꢇꢈ3ꢌꢄꢊꢋ-

H1 +

H2 +

H3 +

A1 output current

A1 output voltage

A2 output current

A2 output voltage

A3 output current

A3 output voltage

17

FAN8728

9. FG OUTPUT FUNCTION

ꢕꢖꢌꢈꢛꢜꢈꢊꢂꢅ ꢂꢅ+ꢈꢋꢖꢃꢒꢖꢈꢗꢌꢅꢌꢒꢅ"ꢈꢅꢖꢌꢈꢇꢂꢔ3ꢌꢍꢈꢊ%ꢈꢍꢊꢅꢏꢅꢃꢊꢇ"ꢈꢊ%ꢈꢅꢖꢌꢈ&ꢙ+ꢈꢃ"ꢈꢝꢌꢇꢌꢍꢏꢅꢌꢗꢈ37ꢈꢒꢊꢔ3ꢃꢇꢏꢅꢃꢊꢇꢈIꢌꢍꢊꢆꢒꢍꢊ""ꢃꢇꢝꢈꢅꢖꢌꢈꢊꢂꢅ ꢂꢅꢈꢋꢏꢐꢌꢆ

%ꢊꢍꢔ"ꢈꢊ%ꢈꢅꢖꢌꢈꢖꢏꢄꢄꢈ"ꢌꢇ"ꢊꢍ"-ꢈꢕꢖꢌꢈꢛꢜꢈꢊꢂꢅ ꢂꢅꢈꢒꢃꢍꢒꢂꢃꢅꢈꢃ"ꢈꢏ"ꢈ"ꢖꢊꢋꢇꢈ3ꢌꢄꢊꢋ-ꢈ

FG OUTPUT (FG) , Pin7

+

H1

−

18

FAN8728

Typical Performance Characteristics

Vcc vs Icc2

ꢀ ꢁꢁꢂꢃꢄꢂꢅꢁꢁꢆ

ꢆꢇ

ꢊꢈ

ꢊꢇ

ꢉꢈ

ꢉꢇ

ꢈ

10

8

6

4

2

0

ꢇ

4.5

4.75

5

5.25

5.5

ꢋꢌꢈ

ꢍꢌꢈ

ꢎꢌꢈ

ꢉꢇꢌꢈ

ꢉꢊꢌꢈ

Vcc(V)

ꢀ ꢁꢁꢏꢀ ꢐ

Vcc vs Gcv

Vinvs Vout

14

6

4

13.5

13

2

12.5

12

0

11.5

11

-2

-4

-6

10.5

10

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

4.5

6.5

8.5

10.5

12.5

Vin(V)

Vcc(V)

Ins+vs Itl

Temp vs Icc2

0.8

0.6

0.4

0.2

0

10

9

8

7

6

5

4

3

2

0

0.825

1.65

2.475

3.3

-40

-20

0

20

40

60

80

100

Ins+(V)

Temp( )

ꢀ

19

FAN8728

Typical Performance Characteristics

Temp vs Icc3

Temp vs ITL

30

25

20

15

10

5

850

800

750

700

650

600

550

0

-40 -20

0

20

40

60

80

100

-40

-20

0

20

40

60

80

100

Trmp( )

ꢀ

Temp(

)

ꢓ

Temp vs Vom

(Vcc=Pvcc=8V,RL=12 Ohm)

7

6.75

6.5

6.25

6

-40

-20

0

20

40

60

80

100

Temp( )

ꢀ

20

FAN8728

Test Circuits

ꢆꢇꢈꢈꢉꢊꢋꢌꢍꢇꢈ

ꢎꢏꢍꢏꢐꢇꢑꢋꢒꢍ

ꢅ

48

47

46

45

44

43

42

41

40

39

38

37

ꢄ

1

2

3

4

5

6

36

35

34

33

32

IN4

H1+

H1-

ꢀ

ꢂ

DO4-

ꢏꢐꢂ

ꢏꢐꢀ

ꢅ

H2+

H2-

DO4+

ꢀ

ꢂ

DO3-

H3+

DO3+

H3-

PGND2 31

ꢀꢁꢂꢃꢄꢅꢃ

ꢅ

ꢀ

ꢂ

FGX3

7

8

DO2- 30

DO2+

ꢂꢄꢍꢎ

ꢏꢐꢂ

ꢏꢐꢀ

ꢅ

DIR

29

DO1- 28

ꢅ

ꢀ

ꢂ

SVCC1

VM1

ꢄ

9

ꢆꢇꢈꢈꢂ

10

DO1+

OUT1

27

26

25

11 CS1

PGND1

ꢇꢉꢂ

ꢅ

12

IN1-

24

13

14

15

16

17

18

19

20

21

22

23

ꢅ

ꢌ

ꢊ

ꢌ

ꢊ

ꢌ

ꢊ

ꢋ

ꢏꢐ

ꢔꢕꢖꢗꢘ

ꢔꢕꢖꢗꢙ

ꢔꢕꢔꢚꢛ

ꢅꢓꢓ

ꢅ

ꢀ

ꢁꢄ

ꢀ

ꢂꢉ

ꢅ

21

FAN8728

Application Circuits

.ꢊꢄꢅꢏꢝꢌꢈ&ꢊꢗꢌꢈꢑꢊꢇꢅꢍꢊꢄ

ꢏꢚꢛꢜꢝꢞꢍꢝꢛ ꢙꢚꢞ

ꢐꢝ!"ꢛꢝ#

ꢗꢘꢑꢙꢔ

48

ꢕꢑꢅ

47

46

45

44

43

42

41

40

39

38

37

ꢆꢇꢂ

'ꢝ()!*ꢞ

ꢐꢝ!"ꢛꢝ#

1

36

35

34

HALL1

ꢕꢑꢃ

2

3

4

ꢀꢁꢂꢃ

M

ꢒꢁꢇꢏꢉꢊꢋ

ꢀꢁꢂꢅ

ꢀꢁꢄꢃ

ꢕꢊꢅ

ꢕꢊꢃ

HALL2

HALL3

33

32

ꢌꢍꢎꢏ

ꢐꢁꢑꢁꢆ

ꢀꢁꢄꢅ

ꢕꢄꢅ

ꢕꢄꢃ

5

ꢈꢉꢇꢀꢊ

6

31

ꢀꢁꢂꢃꢄꢅꢃ

ꢀꢓꢔꢌꢉꢊꢋꢇꢍ

ꢀꢁꢊꢃ

ꢀꢁꢊꢅ

7

ꢔꢉ

30

ꢀꢁꢂꢃꢄ

ꢜꢉꢆꢎꢂꢑꢉꢁꢊ

ꢚꢁꢑꢇꢑꢎꢔ

8

9

ꢀꢆꢓ

29

28

27

ꢏꢒꢐꢐꢑ

ꢀꢁꢑꢃ

ꢀꢁꢑꢅ

ꢁꢌꢍꢑ

ꢅꢆꢇꢂꢈꢉꢊꢋ

10

ꢒꢋꢑ

11 ꢐꢏꢑ

26

ꢆꢇꢑꢃ

ꢈꢉꢇꢀꢑ

13

12

25

16

18

19

20

24

14

15

17

21

22

23

ꢌꢎꢆꢕꢁꢔꢖꢗꢘ

22

FAN8728

Application Circuits

ꢙꢃ%%ꢌꢍꢌꢇꢅꢃꢏꢄꢈ&ꢊꢗꢌꢈꢑꢊꢇꢅꢍꢊꢄ

ꢏꢚꢛꢜꢝꢞꢍꢝꢛ ꢙꢚꢞ

ꢐꢝ!"ꢛꢝ#

ꢗꢘꢑꢙꢔ

48

47

46

45

44

43

42

41

40

39

38

37

'ꢝ()!*ꢞ

1

2

3

4

36

35

34

ꢆꢇꢂ

ꢕꢑꢅ

ꢕꢑꢃ

ꢐꢝ!"ꢛꢝ#

HALL1

ꢀꢁꢂꢃ

M ꢒꢁꢇꢏꢉꢊꢋ

ꢀꢁꢂꢅ

ꢀꢁꢄꢃ

ꢕꢊꢅ

ꢕꢊꢃ

HALL2

HALL3

33

32

ꢌꢍꢎꢏ

M

ꢐꢁꢑꢁꢆ

ꢀꢁꢄꢅ

ꢕꢄꢅ

ꢕꢄꢃ

5

ꢈꢉꢇꢀꢊ

6

31

ꢀꢁꢂꢃꢄꢅꢃ

ꢀꢓꢔꢌꢉꢊꢋꢇꢍ

ꢀꢁꢊꢃ

ꢀꢁꢊꢅ

7

ꢔꢉ

30

ꢀꢁꢂꢃꢄ

ꢖꢉꢆꢎꢂꢑꢉꢁꢊ

ꢕꢁꢑꢇꢑꢎꢔ

8

9

ꢀꢆꢓ

29

28

27

ꢏꢒꢐꢐꢑ

ꢀꢁꢑꢃ

ꢅꢆꢇꢂꢈꢉꢊꢋ

ꢀꢁꢑꢅ

ꢁꢌꢍꢑ

ꢆꢇꢑꢃ

24

10

ꢒꢋꢑ

11 ꢐꢏꢑ

26

ꢈꢉꢇꢀꢑ

13

12

25

16

18

19

20

14

15

17

21

22

23

ꢌꢎꢆꢗꢁꢔꢘꢙꢚ

23

FAN8728

Package Dimensions (Unit: mm)

48-QFPH-1414

17.20 ±0.30

14.00 ±0.20

#48

#1

(0.825)

+0.10

-0.05

0.30

0.10MAX

0.65

0.10MAX

0.80 ±0.20

24

FAN8728

25

FAN8728

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY

PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY

LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER

DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR

CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body,

or (b) support or sustain life, and (c) whose failure to

perform when properly used in accordance with

instructions for use provided in the labeling, can be

reasonably expected to result in a significant injury of the

user.

2. A critical component in any component of a life support

device or system whose failure to perform can be

reasonably expected to cause the failure of the life support

device or system, or to affect its safety or effectiveness.

www.fairchildsemi.com

1/17/02 0.0m 001

Stock#DSxxxxxxxx

2002 Fairchild Semiconductor Corporation


型号：	FAN8728
厂家：	FAIRCHILD SEMICONDUCTOR
描述：	Spindle + 4-CH Input PWM Motor Drive IC 主轴+ 4 - CH输入PWM马达驱动IC 接口集成电路驱动 CD
文件：	总26页 (文件大小：361K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

FAN8728 [FAIRCHILD]

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