LM4962TL datasheet(5/22 Pages) NSC

5 / 22 page

Absolute Maximum Ratings (Notes 1, 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage (V

DD)

9.5V

Amplifier Supply Voltage (V

AMP)

9.5V

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)

2000V

ESD Susceptibility (Note 5)

200V

Junction Temperature

150˚C

Thermal Resistance

JA (µSMD) (Note 12)

73˚C/W

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

Operating Ratings

Temperature Range

MIN

≤ T

MAX (Note 10)

−40˚C

≤ T

≤ +85˚C

Supply Voltage (V

DD)

3.0V < V

DD < 5.0V

Amplifier Supply Voltage (V

(Note 11)

2.7V < V

AMP < 9.0V

Electrical Characteristics

The following specifications apply for V

DD = 3.2V, AV-BTL = 26dB, ZL = 2µF+9.4

Ω, Cb = 1.0µF, R

2 =25K

Ω,R

5 =4.9K

Ω unless

otherwise specified. Limits apply for T

A = 25˚C.

Symbol

Parameter

Conditions

LM4962

Units

(Limits)

Typical

(Note 6)

Limit

(Notes 7, 8)

Quiescent Power Supply Current

in Boosted Ringer Mode

IN = 0V,

mA (max)

Iddrcv

Quiescent Power Supply Current

in Receiver Mode

SD Boost = GND

SD Amp = V

mA (max)

Shutdown Current (Note 9)

SD Boost = SD Amp = GND

0.1

2.0

µA (max)

Logic High Threshold Voltage

For SD Boost, SD Amp

1.2

V (min)

Logic Low Threshold Voltage

For SD Boost, SD Amp

0.4

V (max)

PULLDOWN

Pulldown Resistor

For SD Amp, SD Boost

Ω (min)

WUBC

Boost Converter Wake-up Time

SS = 10nF

ms (max)

WUA

Audio Amplifier Wake-up Time

(For Vdd = 2.7V to 8.5V)

msec

OUT

Output Voltage Swing

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

Vpp (min)

THD+N

Total Harmonic Distortion + Noise

Vout = 14Vpp, f = 1kHz

0.4

1.0

Output Noise

A-Weighted Filter, V

IN = 0V

125

µV

PSRR

Power Supply Rejection Ratio

RIPPLE = 200mVp-p, f = 100Hz,

Input Referred

dB (min)

Ron-sw-leak

On Resistance on SW-Leak

SD Boost = GND

Isink = 100µA

Ω (max)

Ron

Flagout On resistance

Isink = 1mA

100

Ω (max)

Vovp

Sensitivity of Over Voltage

Protection on V

AMP

Flagout = GND

9.0

9.5

8.5

V (max)

V (min)

Vocp

Sensitivity of Over Current

Protection (Voltage Across R

Flagout = GND

185

275

mV (max)

mV (min)

Ileak

Leak Current on Flagout pin

Vflagout = V

µA (max)

SW Current Limit

2.7

A (max)

1.2

A (min)

TSD

Thermal Shutdown Temperature

150

˚C (min)

Vos

Output Offset Voltage

Feedback Voltage

SD Boost = V

SD Amp = V

1.23

1.15

1.31

V (min)

V (max)

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