LM4991

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SNAS217A – MAY 2004 – REVISED APRIL 2013

(1) (2)

LM4991

Parameter

Test Conditions

Units

(Limits)

3

7

mA (max)

4

10

Shutdown Current

0.1

2.0

µA (max)

Shutdown Voltage

1.5

V

1.3

V

Output Offset Voltage

5

35

mV (max)

THD = 1% (max), f = 1kHz

(5)

2.38

0.9

W (min)

(5)

2.1

1.3

Output Power

THD+N = 10%, f = 1kHz

(5)

3

(5)

2.5

W

1.5

THD+N

Total Harmonic Distortion+Noise

0.2

%

PSRR

Power Supply Rejection Ratio

Input terminated with 10

Ω,

64

55

dB (min)

f = 1kHz

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

electrical specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within

the Operating Ratings. Specifications are not ensure for parameters where no limit is given, however, the typical value is a good

indication of device performance.

(2)

All voltages are measured with respect to the ground pin, unless otherwise specified.

(3)

Typicals are specified at 25°C and represent the parametric norm.

(4)

Limits are ensured to AOQL (Average Outgoing Quality Level).

(5)

When driving 3

Ω or 4Ω loads from a 5V supply, the LM4991LD must be mounted to a circuit board.

(1) (2)

LM4991

Parameter

Test Conditions

Units

(Limits)

Quiescent Power Supply

3

7

mA

Current

(max)

4

7

Shutdown Current

0.1

2.0

µA (max)

Shutdown Voltage Input High

1.1

V

Shutdown Voltage Input Low

0.9

V

Output Offset Voltage

5

35

mV

(max)

Output Power

THD = 1% (max), f = 1kHz

600

mW

425

Total Harmonic

THD+N

0.1

%

Distortion+Noise

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

electrical specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within

the Operating Ratings. Specifications are not ensure for parameters where no limit is given, however, the typical value is a good

indication of device performance.

(2)

All voltages are measured with respect to the ground pin, unless otherwise specified.

(3)

Typicals are specified at 25°C and represent the parametric norm.

(4)

Limits are ensured to AOQL (Average Outgoing Quality Level).

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