Datasheet > LM1877

LM1877

更新时间： 2022-12-12 16:32:45

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描述
Dual Audio Power Amplifier

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数据手册

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LM1877 数据手册

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

M-Package Infared (15 sec.)

M-Package Vapor Phase (60 sec.)

Thermal Resistance

θ_JC(N-Package)

220˚C

215˚C

30˚C/W

79˚C/W

27˚C/W

114˚C/W

θ_JA(N-Package)

Supply Voltage

26V

θ_JC(M-Package)

Input Voltage

0.7V

θ_JA(M-Package)

Operating Temperature

Storage Temperature

Junction Temperature

Lead Temperature

0˚C to +70˚C

−65˚C to +150˚C

150˚C

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to

the device may occur. Operating Ratings indicate conditions for which the de-

vice is functional, but do not guarantee specific performance limits.

N-Package Soldering (10 sec.)

260˚C

Electrical Characteristics

V_S20V, T_A25˚C, (Note 2) R_L8Ω, A_V50 (34 dB) unless otherwise specified

Parameter

Total Supply Current

Output Power

Conditions

Min

Typ

Max

Units

P_O0W

THD 10%

LM1877

V_S20V, R_L8Ω

2.0

W/Ch

V_S12V, R_L8Ω

1.3

Total Harmonic Distortion

LM1877

1 kHz, V_S14V

P_O50 mW/Channel

0.075

0.045

0.055

V_S−6

P_O500 mW/Channel

P_O1 W/Channel

Output Swing

R_L8Ω

Vp-p

= =

C_F50 µF, C_IN0.1 µF,

Channel Separation

1 kHz, Output Referred

V_S20V, V_O4 Vrms

−50

−70

−60

V_S7V, V_O0.5 Vrms

= =

C_F50 µF, C_IN0.1 µF,

PSRR Power Supply

Rejection Ratio

120 Hz, Output Referred

V_S20V, V_RIPPLE1 Vrms

−65

−40

V_S7V, V_RIPPLE0.5 Vrms

Noise

Equivalent Input Noise

R_S0, C_IN0.1 µF,

2.5

µV

BW 20 Hz–20 kHz, Output Noise Wideband

R_S0, C_N0.1 µF, A_V200

0.80

Open Loop Gain

Input Offset Voltage

Input Bias Current

Input Impedance

DC Output Level

Slew Rate

R_S0, f 100 kHz, R_L8Ω

Open Loop

MΩ

V_S20V

2.0

1.0

V/µs

kHz

Power Bandwidth

Current Limit

Note 2: For operation at ambient temperature greater than 25˚C, the LM1877 must be derated based on a maximum 150˚C junction temperature.

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