LM4892 datasheet(3/22 Pages) NSC

3 / 22 page

Absolute Maximum Ratings (Note 2)

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

DD +0.3V

Power Dissipation (Note 3)

Internally Limited

ESD Susceptibility (Note 4)

2500V

ESD Susceptibility (Note 5)

250V

Junction Temperature

150˚C

Thermal Resistance

JC (SOP)

35˚C/W

JA (SOP)

150˚C/W

JA (micro SMD)

220˚C/W

JC (MSOP)

56˚C/W

JA (MSOP)

190˚C/W

JA (LLP)

220˚C/W (Note 9)

Soldering Information

See AN-1112 ’microSMD Wafers Level Chip Scale

Package’.

See AN-1187 ’Leadless Leadframe Package (LLP)’.

Operating Ratings

Temperature Range

MIN

≤ T

MAX

−40˚C

≤ T

≤ 85˚C

Supply Voltage

2.2V

≤ V

≤ 5.5V

Electrical Characteristics V

DD =5V

(Notes 1, 2)

The following specifications apply for V

DD = 5V, AV = 2, and 8

Ω load unless otherwise specified. Limits apply for T

A = 25˚C.

Symbol

Parameter

Conditions

LM4892

Units

(Limits)

Typical

Limit

(Note 6)

(Note 7)

Quiescent Power Supply Current

IN = 0V, Io = 0A, HP sense = 0V

mA (max)

IN = 0V, Io = 0A, HP sense = 5V

2.5

mA (max)

Shutdown Current

Vshutdown = GND (Note 8)

0.1

µA (max)

Output Power

THD = 2% (max), f = 1kHz,

L =8

Ω, HP Sense < 0.8V

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

L =32

Ω, HP Sense > 4V

HP Sense high input voltage

V (min)

HP Sense low input voltage

0.8

V (max)

THD+N

Total Harmonic Distortion+Noise

o = 0.4 Wrms; f = 1kHz 10Hz

≤

≤ 80kHz

0.1

PSSR

Power Supply Rejection Ratio

ripple = 200mV sine p-p

62 (f =

217Hz) 66 (f

= 1kHz)

Electrical Characteristics V

DD = 3.3V

(Notes 1, 2)

The following specifications apply for V

DD = 3.3V, AV = 2, and 8

Ω load unless otherwise specified. Limits apply for T

A = 25˚C.

Symbol

Parameter

Conditions

LM4892

Units

(Limits)

Typical

Limit

(Note 6)

(Note 7)

Quiescent Power Supply Current

IN = 0V, Io = 0A, HP sense = 0V

3.5

mA (max)

IN = 0V, Io = 0A, HP sense = 3.3V

2.0

mA (max)

Shutdown Current

Vshutdown = GND (Note 8)

0.1

µA (max)

Output Power

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

L =8

Ω, HP Sense < 0.8V

0.4

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

L =32

Ω, HP Sense > 3V

HP Sense high input voltage

2.6

V (min)

HP Sense low input voltage

0.8

V (max)

THD+N

Total Harmonic Distortion+Noise

o = 0.15 Wrms; f = 1kHz 10Hz

≤

≤ 80kHz

0.1

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