NCP2990 datasheet(7/13 Pages) ONSEMI

Part #	NCP2990

Description	1.3 Watt Audio Power Amplifier with Fast Turn On Time

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP2990

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TYPICAL PERFORMANCE CHARACTERISTICS

Figure 14. PSRR versus Frequency and

Gain @ VP = 3.0 V

−80

−70

−60

−50

−40

10

100

1000

10000

VP = 3.0 V

RL = 8 W

Input to GND

AV = 10

FREQUENCY (Hz)

AV = 4

AV = 2

−80

−70

−60

−50

−40

10

100

1000

10000

FREQUENCY (Hz)

VP = 3.6 V

RL = 8 W

Input to GND

Figure 15. PSRR versus Frequency and

Gain @ VP = 3.6 V

AV = 10

AV = 4

AV = 2

−100

−90

−80

−70

−60

−50

−40

−30

−20

10

100

1000

10000

FREQUENCY (Hz)

Figure 16. PSRR versus Frequency and

Gain @ VP = 4.2 V

VP = 4.2 V

RL = 8 W

Input to GND

AV = 10

AV = 4

AV = 2

0

10

20

30

40

50

60

70

80

−40

−20

0

20

40

60

80

100

Figure 17. Turn On Time versus

Room Temperature @ VBAT = 3.6 V,

CBYP = 1 mF, CIN = 100 nF, RIN = 22 k, RF = 110 k

ROOM TEMPERATURE (

°C)

Figure 18. Turn On Time versus CBYP @ VBAT = 3.6 V, TA = +255C,

CIN = 100 nF, RIN = 22 k, RF = 110 k

0

20

40

60

80

100

120

0

0.5

1

1.5

2

2.5

CBYP (mF)

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