Technical Note

10/26

www.rohm.com

2010.12 - Rev.A

© 2010 ROHM Co., Ltd. All rights reserved.

BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,

BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG

0

5

10

15

20

-60

-30

0

30

60

90

120

AMBIENT TEMPERATURE [℃]

0

200

400

600

800

1000

0

50

100

150

AMBIENT TEMPERATURE [℃]

0

200

400

600

800

1000

0

50

100

150

AMBIENT TEMPERATURE [℃]

0

250

500

750

1000

1250

1500

23

456

SUPPLY VOLTAGE [V]

0

1

2

3

4

5

6

23

45

6

SUPPLY VOLTAGE [V]

0

10

20

30

40

0.0

0.5

1.0

1.5

2.0

2.5

3.0

OUTPUT VOLTAGE [V]

0

5

10

15

20

23

45

6

SUPPLY VOLTAGE [V]

0

300

600

900

1200

1500

-60

-30

0

30

60

90

120

AMBIENT TEMPERATURE [℃]

0

1

2

3

4

5

6

-60

-30

0

306090

120

AMBIENT TEMPERATURE [℃]

0

10

20

30

40

-60

-30

0

30

60

90

120

AMBIENT TEMPERATURE[℃]

0

5

10

15

20

-60

-30

0

30

60

90

120

AMBIENT TEMPERATURE [℃]

0

5

10

15

20

0

0.511.5

22.53

OUTPUT VOLTAGE [V]

Output Source Current –Ambient Temperature

(VOUT=VDD-0.4[V])

●

Reference Data (BU7255 family)

(*)The above data is ability value of sample, it is not guaranteed. BU7255HFV: -40[℃] ~ +85[℃] BU7255SHFV: -40[℃] ~ +105[℃]

85℃

-40℃

25℃

105℃

BU7255 family

3.0V

2.4V

5.5V

BU7255 family

-40℃

25℃

85℃

105℃

BU7255 family

-40℃

25℃

85℃

105℃

BU7255 family

2.4V

5.5V

3.0V

BU7255 family

2.4V

5.5V

3.0V

BU7255 family

-40℃

25℃

85℃

105℃

BU7255 family

5.5V

2.4V

3.0V

BU7255 family

BU7255HFV

85

BU7255SHFV

105

BU7255 family

5.5V

BU7255 family

-40℃

25℃

85℃

105℃

BU7255 family

3.0V

2.4V

BU7255

Fig.24

Fig.25

Fig.26

Fig.27

Fig.28

Fig.29

Fig.30

Fig.31

Fig.32

Fig.33

Fig.34

Fig.35

Supply Current – Supply Voltage

Derating curve

Derating curve

Supply Current

– Ambient Temperature

Output Voltage High

– Supply Voltage (RL=10[kΩ])

Output Voltage High

– Ambient Temperature (RL=10[kΩ])

Output Voltage Low

– Supply Voltage (RL=10[kΩ])

Output Voltage Low

– Ambient Temperature (RL=10[kΩ])

Output Source Current

– Output Voltage (VDD=3[V])

Output Sink Current – Ambient Temperature

(VOUT=VSS+0.4[V])

Output Sink Current – Output Voltage

(VDD=3[V])