If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage (pin 6, referenced

to GND, pins 4 and 5)

18.0V

Storage Temperature

−65˚C to +150˚C

Input Voltage

pins 3 and 7

−0.3V to V

pins 1, 2, 8, and 9

−0.3V to 9.5V

Power Dissipation (Note 3)

Internally limited

ESD Susceptibility (Note 4)

2000V

ESD Susceptibility (Note 5)

200V

Junction Temperature

150˚C

Thermal Resistance

θ

4˚C/W

θ

20˚C/W

θ

4˚C/W

θ

20˚C/W

Operating Ratings

Temperature Range

T

MIN

≤ T

A

≤ T

MAX

−40˚C

≤ T

A

≤ 85˚C

Supply Voltage

9.6V

≤ V

DD

≤ 16V

Electrical Characteristics V

The following specifications apply for V

25˚C.

Symbol

Parameter

Conditions

LM4950

Units

(Limits)

Typical

(Note 6)

Limit

(Notes 7, 8)

I

DD

Quiescent Power Supply Current

V

16

30

mA (max)

I

SD

Shutdown Current

V

40

80

µA (max)

V

OS

Offset Voltage

V

Ω

5

30

mV (max)

V

SDIH

Shutdown Voltage Input High

2.0

V

V (min)

V (max)

V

SDIL

Shutdown Voltage Input Low

0.4

V (max)

T

WU

Wake-up Time

C

440

ms

TSD

Thermal Shutdown Temperature

170

150

190

˚C (min)

˚C (max)

P

O

Output Power

f = 1kHz

R

Ω SE, Single Channel,

THD+N = 1%

R

Ω BTL, THD+N = 10%

3.1

7.5

3.0

W (min)

THD+N

Total Harmomic Distortion + Noise

P

R

Ω SE

0.05

%

P

R

Ω,SE

0.14

e

OS

Output Noise

A-Weighted Filter, V

Input Referred

10

µV

X

TALK

Channel Separation

f

R

Ω

R

Ω

76

70

dB

PSRR

Power Supply Rejection Ratio

V

R

Ω, BTL

70

56

dB (min)

I

OL

Output Current Limit

V

Ω

5A

Note 1: All voltages are measured with respect to the GND pin, unless otherwise specified.

Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which

guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit

is given, however, the typical value is a good indication of device performance.

2

heatsink surface area.

Note 4: Human body model, 100pF discharged through a 1.5 k

Ω resistor.

Note 5: Machine Model, 220pF–240pF discharged through all pins.

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