LM48520 datasheet(5/18 Pages) NSC

tên linh kiện	LM48520

Giải thích chi tiết về linh kiện	Boosted Stereo Class D Audio Power Amplifier with Output Speaker Protection and Spread Spectrum

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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 (V

DD, V1)

6V

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

θ

JA (TL)

40.5 °C/W

Operating Ratings

Temperature Range

T

MIN ≤ TA ≤ TMAX

−40°C

≤ T

A ≤ +85°C

Supply Voltage (V

DD)

2.7V

≤ V

DD ≤ 5.0V

Amplifier Voltage (V1 )

Not under Boosted Condition

2.4V

≤ V

1 ≤ 5.5V

Amplifier Voltage (PV1 )

Under Boosted Condition

3.0V

≤ PV

1 ≤ 5.0V

Electrical Characteristics V

DD = 3.3V (Notes 1, 2)

The following specifications apply for V

DD = 3.3V, AV = 6dB, RL = 15µH + 8Ω +15µH, fIN = 1kHz, unless otherwise specified. Limits

apply for T

A = 25°C, R1 = 40.2kΩ, R2 = 16.2kΩ, V1 = PV1 = 5V, Vlimit = GND. All electrical specifications are for amplifier and booster.

Symbol

Parameter

Conditions

LM48520

Units

(Limits)

Typical

(Note 6)

Limit

(Notes 7, 8)

I

DD

Quiescent Power Supply Current

V

IN = 0, RLOAD = ∞

V

DD = 2.7V

14.8

V

DD = 3.3V

11.5

15.5

mA (max)

V

DD = 5.0V

8.0

I

SD

Shutdown Current

V

SHUTDOWN = GND

0.04

1.0

μA (max)

V

SDIH

Shutdown Voltage Input High

For SD Boost, SD Amp

1.4

V

SDIL

Shutdown Voltage Input Low

For SD Boost, SD Amp

0.4

V

T

WU

Wake-up Time

Amplifier + Booster Wakeup

3

ms

V

OS

Output Offset Voltage

5

mV

A

V

Gain

G0, G1 = GND

R

L = ∞

6

dB

G0 = V

DD, G1 = GND

R

L = ∞

12

dB

G0 = GND, G1 = V

DD

R

L = ∞

18

dB

G0, G1 = V

DD

R

L = ∞

24

dB

P

O

Output Power

R

L = 15μH + 8Ω + 15μH

THD+N = 1% (max),

f = 1kHz, 22kHz, BW

V

DD = 3.3V

1.1

0.87

W (min)

R

L = 15μH + 8Ω + 15μH

THD+N = 10% (max),

f = 1kHz, 22kHz, BW

V

DD = 3.3V

1.3

W

THD+N

Total Harmonic Distortion + Noise

P

O = 500mW, f = 1kHz,

R

L = 15μH + 8Ω + 15μH,

V

DD = 3.3V

0.04

%

ε

OS

Output Noise

V

DD = 3.6V, f = 20Hz – 20kHz

Inputs to AC GND, A weighted

32

µV

RMS

5

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Số phần tương tự - LM48520

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Texas Instruments	LM48520	805Kb / 20P	[Old version datasheet] Boosted Stereo Class D Audio Power Amplifier with Output Speaker Protection and Spread Spectrum
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Mô tả tương tự - LM48520

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	LM48520	805Kb / 20P	[Old version datasheet] Boosted Stereo Class D Audio Power Amplifier with Output Speaker Protection and Spread Spectrum
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