BD3941HFP datasheet(3/9 Pages) ROHM

No de pièce	BD3941HFP

Description	Power Management LSI Series for Automotive Body Control

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Fabricant	ROHM [Rohm]

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Reference data

(Unless otherwise specified, Ta = 25°C)

0

10

20

30

40

50

0

5

10

15

20

25

SUPPLY VOLTAGE: Vｃｃ [V]

0

1

2

3

4

5

6

0

500

1000

1500

2000

OUTPUT CURRENT: Io [mA]

0

1

2

3

4

5

6

0

5

10

15

20

25

SUPPLY VOLTAGE: Vｃｃ [V]

Fig. 1 Total Supply Current

Fig. 3 Output Voltage vs Load

Ta = 25°C

Ta = 125°C

Ta = −40°C

Fig. 2 Output Voltage vs Power

Supply Voltage

Ta = 125°C

Ta = 25°C

Ta = −40°C

0

0.05

0.1

0.15

0.2

0

100

200

300

400

500

OUTPUT CURRENT: Io [mA]

0

1

2

3

4

5

6

100

120

140

160

180

200

AMBIENT TEMPERATURE: Ta [℃]

4.5

4.75

5

5.25

5.5

-40

0

40

80

120

AMBIENT TEMPERATURE: Ta [℃]

Fig. 9 Output Voltage vs

Temperature

Fig. 8 Thermal Shutdown Circuit

Fig. 7 Total Supply Current

Classified by Load

0

0.2

0.4

0.6

0.8

1

0

100

200

300

400

500

OUTPUT CURRENT: Io [mA]

0

10

20

30

40

50

60

70

10

100

1000

10000 100000 1E+06

FREQUENCY: f [Hz]

0

1

2

3

4

5

6

20

25

30

35

40

SUPPLY VOLTAGE: Vcc [V]

Fig. 5 Ripple Rejection

Fig. 4 I/O Voltage Difference

Fig. 6 Overvoltage Protection

Ta = 25°C

Ta = −40°C

Ta = 125°C

Fig. 10 Ripple Rejection vs

Temperature

45

50

55

60

65

-40

0

40

80

120

AMBIENT TEMPERATURE: Ta [℃]

Fig. 11 Min. I/O Voltage Differential vs

Temperature

Fig. 12 Total Supply Current vs

Temperature

0

0.1

0.2

0.3

0.4

0.5

0.6

-40

0

40

80

120

AMBIENT TEMPERATURE: Ta [℃]

0

10

20

30

40

50

-40

0

40

80

120

AMBIENT TEMPERATURE: Ta [℃]

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