TPA3126D2 datasheet(8/38 Pages) TI1

Part #	TPA3126D2

Description	50-W Stereo, Analog-Input, Class-D Audio Amplifier with Low, 15-mA Idle Current and AM Avoidance

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Manufacturer	TI1 [Texas Instruments]

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8

TPA3126D2

SLOS942 – APRIL 2018

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Product Folder Links: TPA3126D2

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7.6 AC Electrical Characteristics

TA = 25°C, AVCC = PVCC = 12 V to 24 V, RL = 4 Ω (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

KSVR

Power supply ripple rejection

200 mVPP ripple at 1 kHz, Gain = 26 dB,

Inputs

AC-coupled to GND

–70

dB

PO

Continuous output power

THD+N = 10%, f = 1 kHz, PVCC = 14.4 V

25

W

THD+N = 10%, f = 1 kHz, PVCC = 21 V

50

THD+N

Total harmonic distortion + noise

VCC = 21 V, f = 1 kHz, PO = 15 W (half-

power)

0.1%

Vn

Output integrated noise

20 Hz to 22 kHz, A-weighted filter, Gain = 20

dB

65

µV

–80

dBV

Crosstalk

VO = 1 Vrms, Gain = 20 dB, f = 1 kHz

–100

dB

SNR

Signal-to-noise ratio

Maximum output at THD+N < 1%, f = 1 kHz,

Gain = 20 dB, A-weighted

102

dB

fOSC

Oscillator frequency

AM2=0, AM1=0, AM0=0

376

400

424

kHz

AM2=0, AM1=0, AM0=1

470

500

530

AM2=0, AM1=1, AM0=0

564

600

636

AM2=0, AM1=1, AM0=1

940

1000

1060

AM2=1, AM1=0, AM0=0

1128

1200

1278

AM2=1, AM1=0, AM0=1

282

300

318

AM2=1, AM1=1, AM0=0

Modulation scheme Fixed in 1SPW Mode

282

300

318

AM2=1, AM1=1, AM0=1, Reserved

Thermal trip point

≥150

°C

Thermal hysteresis

15

°C

Over current trip point

7.5

A

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