LM4675, LM4675SDBD, LM4675TLBD

SNAS353C – AUGUST 2006 – REVISED MAY 2013

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Electrical Characteristics

(1) (2)

The following specifications apply for AV = 2V/V (RI = 150kΩ), RL = 15µH + 8Ω + 15µH unless otherwise specified. Limits

apply for TA = 25°C.

LM4675

Units

Symbol

Parameter

Conditions

(Limits)

Typical(3)

Limit(4)(5)

Differential Output Offset

VI = 0V, AV = 2V/V,

|VOS|

3

mV

Voltage

VDD = 2.4V to 5.0V

|IIH|

Logic High Input Current

VDD = 5.0V, VI = 5.5V

17

100

μA (max)

|IIL|

Logic Low Input Current

VDD = 5.0V, VI = –0.3V

0.9

5

μA (max)

VIN = 0V, No Load, VDD = 5.0V

2.8

3.9

mA (max)

VIN = 0V, No Load, VDD = 3.6V

2.2

2.9

mA

VIN = 0V, No Load, VDD = 2.4V

1.6

2.3

mA (max)

Quiescent Power Supply

IDD

Current

VIN = 0V, RL = 8Ω, VDD = 5.0V

2.8

VIN = 0V, RL = 8Ω, VDD = 3.6V

2.2

VIN = 0V, RL = 8Ω, VDD = 2.4V

1.6

VSHUTDOWN = 0V

ISD

Shutdown Current(6)

0.01

1.0

μA (max)

VDD = 2.4V to 5.0V

VSDIH

Shutdown voltage input high

1.4

V (min)

VSDIL

Shutdown voltage input low

0.4

V (max)

ROSD

Output Impedance

VSHUTDOWN = 0.4V

100

k

Ω

V/V (min)

AV

Gain

300k

Ω/RI

V/V (max)

Resistance from Shutdown Pin

RSD

300

k

Ω

to GND

fSW

Switching Frequency

300±30%

kHz

RL = 15μH + 4Ω + 15μH

VDD = 5V

2.7

W

THD = 10% (max)

VDD = 3.6V

1.3

W

f = 1kHz, 22kHz BW

VDD = 2.5V

560

mW

RL = 15μH + 4Ω + 15μH

VDD = 5V

2.2

W

THD = 1% (max)

VDD = 3.6V

1.08

W

f = 1kHz, 22kHz BW

VDD = 2.5V

450

mW

PO

Output Power

RL = 15μH + 8Ω + 15μH

VDD = 5V

1.6

W

THD = 10% (max)

VDD = 3.6V

820

mW

f = 1kHz, 22kHz BW

VDD = 2.5V

350

mW

RL = 15μH + 8Ω + 15μH

VDD = 5V

1.3

W

THD = 1% (max)

VDD = 3.6V

650

600

mW

f = 1kHz, 22kHz BW

VDD = 2.5V

290

mW

VDD = 5V, PO = 0.1W, f = 1kHz

0.03

%

Total Harmonic Distortion +

THD+N

VDD = 3.6V, PO = 0.1W, f = 1kHz

0.02

%

Noise

VDD = 2.5V, PO = 0.1W, f = 1kHz

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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure 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)

Shutdown current is measured in a normal room environment. Exposure to direct sunlight will increase ISD by a maximum of 2µA. The

Shutdown pin should be driven as close as possible to GND for minimal shutdown current and to VDD for the best THD performance in

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

4

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