NCP2821 datasheet(4/19 Pages) ONSEMI

部品番号	NCP2821

部品情報	2.65 W Filterless with Selectable Gain Class?묭 Audio Amplifier

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NCP2821

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ELECTRICAL CHARACTERISTICS (Limits apply for TA = +25°C unless otherwise noted)

Characteristic

Symbol

Conditions

Min

Typ

Max

Unit

Operating Supply Voltage

VP

TA = −40°C to +85°C

2.5

−

5.5

V

Supply Quiescent Current

Idd

VP = 3.6 V, RL = 8.0 W

VP = 5.5 V, No Load

VP from 2.5 V to 5.5 V, No Load

TA = −40°C to +85°C

−

2.5

3.1

−

4.5

mA

Shutdown Current

Isd

Vp = 4.2 V, TA = +25°C

−

0.5

mA

Vp = 5.5 V, TA = +25°C

Vp = 2.5 V to 5.5 V

TA = −40°C to +85°C

−

0.8

−

1.4

mA

SD Voltage High

Vsdih

1.2

−

V

SD Voltage Low

Vsdil

−

0.4

V

GS Voltage High

Vgsih

1.2

−

V

GS Voltage Low

Vgsil

−

0.4

V

Differential Input Resistance

Rin

G = 6 dB

−

150

−

k

W

G = 12 dB

−

75

−

k

W

Switching Frequency

FSW

Vp = 2.5 V to 5.5 V

TA = −40°C to +85°C

200

250

300

kHz

Gain

G

RL = 8.0 W, VGS = High

5.5

6

6.5

dB

RL = 8.0 W, VGS = Low

11.5

12

12.5

dB

Resistance from SD to Gnd

RSD

200

300

−

k

W

Output Offset Voltage

Vos

TA = −40°C to +85°C

−25

2.5

+25

mV

Turn On Time

TON

Vp = 2.5 V to 5.5 V

−

9

−

ms

Turn Off Time

TOFF

Vp = 2.5 V to 5.5 V

−

5

−

ms

Thermal Shutdown Temperature

Tsd

−

160

−

°C

Output Noise Voltage

Vn

Vp = 3.6 V

F = 20Hz to 20kHz

No weighting filter

A weighting filter

−

63

40

−

mVrms

RMS Output Power

Po

RL = 8 W, f = 1 kHz, THD+N < 1%

Vp = 2.5 V

Vp = 3.0 V

Vp = 3.6 V

Vp = 4.2 V

Vp = 5.0 V

−

0.32

0.48

0.7

0.97

1.38

−

W

RL = 8 W, f = 1 kHz, THD+N < 10%

Vp = 2.5 V

Vp = 3.0 V

Vp = 3.6 V

Vp = 4.2 V

Vp = 5.0 V

−

0.4

0.59

0.87

1.19

1.7

−

W

RMS Output Power

Po

RL = 4 W, f = 1 kHz, THD+N < 1%

Vp = 2.5 V

Vp = 3.0 V

Vp = 3.6 V

Vp = 4.2 V

Vp = 5.0 V

−

0.49

0.72

1.06

1.62

2.12

−

W

RL = 4 W, f = 1 kHz, THD+N < 10%

Vp = 2.5 V

Vp = 3.0 V

Vp = 3.6 V

Vp = 4.2 V

Vp = 5.0 V

−

0.6

0.9

1.33

2.0

2.65

−

W

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