BD6370GUL, BD6758MWV, BD6758KN

Technical Note

2/32

www.rohm.co

2009.06 - Rev.A

© 2009 ROHM Co., Ltd. All rights reserved.

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Operating Conditions (Ta=-25 to +85°C)

Parameter

Symbol

Limit

Unit

BD6370GUL

BD6758MWV

BD6758KN

Power supply voltage

VCC

2.7 to 5.5

2.5 to 5.5

2.5 to 5.5

V

Motor power supply voltage

VM

2.7 to 5.5

2.5 to 5.5

2.5 to 5.5

V

Control input voltage

VIN

0 to VCC

0 to VCC

0 to VCC

V

Control input frequency

FIN

5

5

5

kHz

Serial clock input frequency

FSCLK

5

-

-

MHz

H-bridge output current

Iout

6

6

6

mA/ch

※

5 ON duty=50%

※

6 Must not exceed Pd or ASO.

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Electrical Characteristics and Diagrams

1) BD6370GUL Electrical DC Characteristics (Unless otherwise specified, Ta=25°C, VCC=3.0V, VM=5.0V)

Parameter

Symbol

Limit

Unit

Conditions

Min.

Typ.

Max.

Overall

ICCST

-

0

3.0

μA

PS=0V

ICC

-

1.3

2.0

mA

PS=3V with no control signal, and no load

Control input (IN=PS, INPUT1, 2, 34, 45, STROBE, SCLK, and SDATA)

High level input voltage

VINH

2.0

-

VCC

V

Low level input voltage

VINL

0

-

0.7

V

High level input current 1

IINH1

15

30

60

μA

VINH1 (PS, INPUT1, 2, 34, 45) =3V

High level input current 2

IINH2

7.5

15

30

μA

VINH2 (STROBE, SCLK, SDATA) =3V

Low level input current

IINL

-1

0

-

μA

VINL=0V

UVLO

UVLO voltage

VUVLO

1.6

-

2.4

V

Constant-Voltage Drive / Full-ON Drive block (ch1 to ch3)

Output ON-Resistance

RON

-

1.40

1.75

Ω

Io=±400mA on high and low sides in total

Output high voltage 1

VVOH1

1.35

1.50

1.65

V

DACx=6’b01_0100, RL=20Ω

Output high voltage 2

VVOH2

2.85

3.00

3.15

V

DACx=6’b10_1000, RL=20Ω

Output high voltage 3

VVOH3

4.49

4.725

4.96

V

DACx=6’b11_1111, RL=20Ω

DAC resolution

DVRES

-

6

-

Differential non-linear tolerance

DVDNL

-1

-

1

LSB

Integral non-linear tolerance

DVINL

-2

-

2

LSB

Min. voltage of DAC setting

DVRNG

1.5

-

-

V

DACx=6’b01_0100

Constant-Voltage Drive / Constant-Current Drive / Full-ON Drive block (ch4)

Output ON-Resistance

RON

-

1.40

1.75

Ω

Io=±400mA on high and low sides in total

Constant-Voltage Drive block in ch4

Output high voltage 1

VVOH1

1.35

1.50

1.65

V

DACV4=6’b01_0100, RL=20Ω

Output high voltage 2

VVOH2

2.85

3.00

3.15

V

DACV4=6’b10_1000, RL=20Ω

Output high voltage 3

VVOH3

4.49

4.725

4.96

V

DACV4=6’b11_1111, RL=20Ω

DAC resolution

DVRES

-

6

-

Differential non-linear tolerance

DVDNL

-1

-

1

LSB

Integral non-linear tolerance

DVINL

-2

-

2

LSB

Min. voltage of DAC setting

DVRNG

1.5

-

-

V

DACV4=6’b01_0100

Constant-Current Drive block in ch4

RNF voltage 1

VIRNF1

40

50

60

mV

RNF voltage 2

VIRNF2

94

99

104

mV

RNF voltage 3

VIRNF3

178

198

218

mV

DAC resolution

DIRES

-

6

-

Differential non-linear tolerance

DIDNL

-1

-

1

LSB

Integral non-linear tolerance

DIINL

-2

-

2

LSB

Min. voltage of DAC setting

DIRNG

50

-

-

mV

DACI4=6’b00_1010

Constant-Current Drive block (ch5)

Output ON-Resistance

RON

-

1.4

1.75

Ω

Io=±400mA on high and low sides in total

RNF voltage 1

VIRNF1

38

48

58

mV

RNF voltage 2

VIRNF2

91

96

101

mV

RNF voltage 3

VIRNF3

172

192

212

mV

DAC resolution

DIRES

-

6

-

Differential non-linear tolerance

DIDNL

-1

-

1

LSB

Integral non-linear tolerance

DIINL

-2

-

2

LSB

Min. voltage of DAC setting

DIRNG

50

-

-

mV

DAC5=6’b00_1010