LM4873 datasheet(4/25 Pages) NSC

4 / 25 page

Absolute Maximum Ratings (Note 3)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage

6.0V

Storage Temperature

−65˚C to +150˚C

Input Voltage

−0.3V to V

+0.3V

Power Dissipation (Note 4)

Internally limited

ESD Susceptibility (Note 5)

2000V

ESD Susceptibility (Note 6)

200V

Junction Temperature

150˚C

Solder Information

Small Outline Package

Vapor Phase (60 sec.)

215˚C

Infrared (15 sec.)

220˚C

See AN-450 “Surface Mounting and their Effects on

Product Reliablilty” for other methods of soldering

surface mount devices.

Thermal Resistance

JC (typ) — MTC20

20˚C/W

JA (typ) — MTC20

80˚C/W

JC (typ) — MXA20A

2˚C/W

JA (typ) — MXA20A

41˚C/W (Note 7)

JA (typ) — MXA20A

51˚C/W (Note 8)

JA (typ) — MXA20A

90˚C/W (Note 9)

JC (typ) — MXA28A

2˚C/W

JA (typ) — MXA28A

41˚C/W (Note 10)

JA (typ) — MXA28A

51˚C/W (Note 11)

JA (typ) — MXA28A

90˚C/W (Note 12)

JC (typ) — LQA24A

3.0˚C/W

JA (typ) — LQA24A

42˚C/W (Note 13)

JA (typ) — micro SMD

60˚C/W (Note 14)

Operating Ratings

Temperature Range

MIN

≤ T

MAX

−40˚C

≤ T

≤ 85˚C

Supply Voltage

2.0V

≤ V

≤ 5.5V

Electrical Characteristics (Notes 3, 15)

The following specifications apply for V

DD= 5V unless otherwise noted. Limits apply for TA= 25˚C.

Symbol

Parameter

Conditions

LM4873

Units

(Limits)

Typical

Limit

(Note 16)

(Note 17)

Supply Voltage

V (min)

5.5

V (max)

Quiescent Power Supply Current

IN = 0V, IO = 0A (Note 18) , HP-IN = 0V

7.5

mA (max)

IN = 0V, IO = 0A (Note 18) , HP-IN = 4V

5.8

mA (min)

Shutdown Current

DD applied to the SHUTDOWN pin

0.7

µA (max)

Headphone High Input Voltage

V (min)

Headphone Low Input Voltage

0.8

V (max)

Electrical Characteristics for Bridged-Mode Operation (Notes 3, 15)

The following specifications apply for V

DD= 5V unless otherwise specified. Limits apply for TA= 25˚C.

Symbol

Parameter

Conditions

LM4873

Units

(Limits)

Typical

Limit

(Note 16)

(Note 17)

Output Offset Voltage

IN = 0V

mV (max)

Output Power (Note 19)

THD+N = 1%, f = 1kHz (Note 20)

LM4873MTE-1, R

L =3

Ω

2.4

LM4873MTE, R

L =3

Ω

2.2

LM4873LQ, R

L =3

Ω

2.2

LM4873MTE-1, R

L =4

Ω

2.1

LM4873MTE, R

L =4

Ω

1.9

LM4873LQ, R

L =4

Ω

1.9

LM4873MT, R

L =4

Ω

1.9

LM4873, R

L =8

Ω

1.1

1.0

W (min)

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