LM4675, LM4675SDBD, LM4675TLBD

SNAS353B – AUGUST 2006 – REVISED JULY 2008

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Electrical Characteristics

(1) (2)

LM4675

Units

Symbol

Parameter

Conditions

(Limits)

Differential Output Offset

3

mV

Voltage

Logic High Input Current

17

100

μA (max)

Logic Low Input Current

0.9

5

μA (max)

2.8

3.9

mA (max)

2.2

2.9

mA

1.6

2.3

mA (max)

Quiescent Power Supply

Current

2.8

2.2

1.6

0.01

1.0

μA (max)

Shutdown voltage input high

1.4

V (min)

Shutdown voltage input low

0.4

V (max)

Output Impedance

100

k

Ω

V/V (min)

Gain

300k

V/V (max)

Resistance from Shutdown Pin

300

k

Ω

to GND

Switching Frequency

300±30%

kHz

2.7

W

THD = 10% (max)

1.3

W

f = 1kHz, 22kHz BW

560

mW

2.2

W

THD = 1% (max)

1.08

W

f = 1kHz, 22kHz BW

450

mW

Output Power

1.6

W

THD = 10% (max)

820

mW

f = 1kHz, 22kHz BW

350

mW

1.3

W

THD = 1% (max)

650

600

mW

f = 1kHz, 22kHz BW

290

mW

0.03

%

Total Harmonic Distortion +

THD+N

0.02

%

Noise

0.04

%

(1)

All voltages are measured with respect to the ground pin, unless otherwise specified.

(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 ensured for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(3)

Typical specifications are specified at 25°C and represent the parametric norm.

(4)

Tested limits are specified to TI's AOQL (Average Outgoing Quality Level).

(5)

Datasheet min/max specification limits are ensured by design, test, or statistical analysis.

(6)

PLAY mode. See the Application Information section under SHUTDOWN FUNCTION for more information.

4

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