LM4917SD datasheet(4/18 Pages) NSC

4 / 18 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

4.0V

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)

2000V

ESD Susceptibility (Note 5)

200V

Junction Temperature

150˚C

Thermal Resistance

JC (TSSOP)

40˚C/W

JA (TSSOP)

109˚C/W

Operating Ratings

Temperature Range

MIN

≤ T

MAX

−40˚C

≤ T

≤ 85˚C

Supply Voltage (V

DD)

1.4V

≤ V

≤ 3.6V

Electrical Characteristics V

DD =3V (Notes 1, 2)

The following specifications apply for V

DD = 3V, AV = 1, and 16

Ω load unless otherwise specified. Limits apply to T

A = 25˚C.

Symbol

Parameter

Conditions

LM4917

Units

(Limits)

Typ

(Note 6)

Limit

(Notes 7,

Quiescent Power Supply Current

IN = 0V, IO = 0A, both channels

enabled

mA (max)

IN = 0V, IO = 0A, one channel

enabled

9mA

Shutdown Current

SD_LC =VSD_RC = GND

0.01

µA (max)

Output Offset Voltage

L =32

Ω

mV (max)

Output Power

THD+N = 1% (max); f = 1kHz, R

L =

Ω

mW (min)

THD+N = 1% (max); f = 1kHz, R

L =

Ω

THD+N

Total Harmonic Distortion + Noise P

O = 50mW, f = 1kHz, RL =32

Ω

(A-weighted) single channel

0.02

PSRR

Power Supply Rejection Ratio

RIPPLE = 200mV sine p-p,

f = 1kHz

f = 20kHz

SNR

Signal-to-Noise Ratio

L =32

Ω,P

OUT = 20mW, f = 1kHz

100

Shutdown Input Voltage High

IH =

0.7*CPV

V (min)

Shutdown Input Voltage Low

IL =

0.3*CPV

V (max)

Wake Up Time From Shutdown

339

µs (max)

TALK

Crosstalk

L =16

Ω,P

O = 1.6mW, f = 1kHz

Input Leakage Current

±0.1

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 that

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.

Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature, TA. The maximum

allowable power dissipation is PDMAX =(TJMAX -TA)/ θJA or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4917, see power

de-rating currents for more information.

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

Ω resistor.

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

Note 6: Typicals are measured at 25˚C and represent the parametric norm.

Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.

Note 9: If the product is in shutdown mode and VDD exceeds 3.6V (to a max of 4V VDD) then most of the excess current will flow through the ESD protection circuits.

If the source impedance limits the current to a max of 10mA, then the part will be protected. If the part is enabled when VDD is above 4V circuit performance will

be curtailed or the part may be permanently damaged.

Note 10: Human body model, 100pF discharged through a 1.5k

Ω resistor.

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