BD64547MUV datasheet(2/39 Pages) ROHM

Part #	BD64547MUV

Description	System Motor Driver

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Manufacturer	ROHM [Rohm]

Direct Link	http://www.rohm.com

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TSZ02201-0P2P0C001400-1-2

16.Nov.2020 Rev.006

TSZ22111 • 15 • 001

2/36

BD64547MUV

www.rohm.com

OUTAP

VBBA

OUTAM

RNFA

RNFAS

OUTBP

VBBB

OUTBM

RNFB

RNFBS

LOGIC

4bit DAC

(1/5or1/10)

RNFAS

VREFA

2

VREFB

SWOUT1

VBBSW1

PRE

DRIVER

PRE

DRIVER

ENBSW1

ENBSW2

PWM

GND

TSD

OCP

Clock

internal reg.

FB1

OSC

R

S

Q

DAC for

soft start

SWOUT2

VINSW2

PRE

DRIVER

FB2

OSC

R

S

Q

DAC for

soft start

PGNDSW2

BOOT

COMP

FB1

FB2

OCPDET

UVDET

RESET

UVDETIN

UVP

MODE

internal reg.

Regulator

3

47

17

48

16 36

1

41

SLEEP

ENBA,ENBB

CLK,STB(LD),DAT

ID0,ID1,ID2

RSTIN

4

to

12

29

30

26

28

27

32

31

35

33

34

37

38

39

40

42

21

19

20

22

23

24

25

18

43

44

45

46

14

15

13

10

3

Iinternal reg.

4bit DAC

(1/5or1/10)

RNFBS

23

RESET

UVDET

SWOUT1

1

2

3

4

5

6

7

RSTIN

UVDETIN

24

13

14

15

16

17

25

36 35 34 33

40

39

38

37

48

47

46

SWOUT2

VINSW2

FB2

GND

PWM

OCPDET

VBBSW1

9

10

8

18

19

20

SWOUT2

30 29 28 27 26

MODE

ENBSW1

ENBSW2

45

44

43

PGNDSW2

12

21

22

FB1

GND

42

41

11

32

31

COMP

BOOT

EXP-PAD

Pin Configuration

Block Diagram

Pin Description

No.

Pin Name

I/O

Function

No.

Pin Name

I/O

Function

1

GND

-

Ground

25 PGNDSW2

-

SWREG2 power ground

2

VREFA

I

H-Bridge A output current setting

26

OUTAM

O

H-Bridge A output (-)

3

VREFB

I

H-Bridge B output current setting

27

RNFAS

I

H-Bridge A input pin of current

detection

4

SLEEP

I

Sleep mode setting

28

RNFA

O

H-Bridge A current detection

5

ENBA

I

H-Bridge A enable input

29

VBBA

-

H-Bridge A power supply (42 V)

6

ENBB

I

H-Bridge B enable input

30

OUTAP

O

H-Bridge A output (+)

7

CLK

I

Serial CLK input

31

OUTBP

O

H-Bridge B output (+)

8

STB(LD)

I

Serial STB(LD) input

32

VBBB

-

H-Bridge B power supply (42 V)

9

DAT

I

Serial DAT input

33

RNFB

O

H-Bridge B current detection

10

ID0

I

ID 0 setting

34

RNFBS

I

H-Bridge B input pin of current

detection

11

ID1

I

ID 1 setting

35

OUTBM

O

H-Bridge B output (-)

12

ID2

I

ID 2 setting

36

GND

-

Ground

13

ENBSW1

I

SWREG1 enable input

37

VBBSW1

-

SWREG1 power supply (42 V)

14

ENBSW2

I

SWREG2 enable input

38

VBBSW1

-

SWREG1 power supply (42 V)

15

PWM

I

SWREG2 PWM compulsion

39

SWOUT1

O

SWREG1 output

16

GND

-

Ground

40

SWOUT1

O

SWREG1 output

17

COMP

I/O

SWREG2 phase compensation

41

GND

-

Ground

18

FB2

I

SWREG2 feedback

42

FB1

I

SWREG1 feedback

19

VINSW2

-

SWREG2 power supply (5 V)

43

OCPDET

O

OCP detection

20

VINSW2

-

SWREG2 power supply (5 V)

44

UVDET

O

VBB drop detection

21

BOOT

I

SWREG2 H-side Nch booster

45

RESET

O

Reset output

22

SWOUT2

O

SWREG2 output

46

RSTIN

I

Reset input

23

SWOUT2

O

SWREG2 output

47

MODE

I

H-Bridge mode setting

24 PGNDSW2

-

SWREG2 power ground

48

UVDETIN

I

UVDET setting

-

EXP-PAD

-

The EXP-PAD is connect to

GND.

-

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