6

TPA3128D2, TPA3129D2

SLOS941C – MAY 2016 – REVISED JANUARY 2018

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Product Folder Links: TPA3128D2 TPA3129D2

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(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

(2)

For the PCB layout, see the TPS3128D2EVM user guide.

6.4 Thermal Information

THERMAL METRIC(1)

TPA3128D2, TPA3129D2

UNIT

DAP(2)

32 PINS

RθJA

Junction-to-ambient thermal resistance

22

°C/W

ψJT

Junction-to-top characterization parameter

0.3

°C/W

ψJB

Junction-to-board characterization parameter

4.8

°C/W

6.5 DC Electrical Characteristics

TA = 25°C, AVCC = PVCC = 12 V to 24 V, RL = 4 Ω, fs = 400 kHz, low idle-loss mode(unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

| VOS |

Class-D output offset voltage (measured

differentially)

VI = 0 V

1.5

5

mV

ICC

Quiescent supply current

SDZ = 2 V, With load and filter, PVCC = 12 V

17

mA

SDZ = 2 V, With load and filter, PVCC = 24 V

23

mA

ICC(SD)

Quiescent supply current in shutdown

mode

SDZ = 0.8 V, With load and filter, PVCC = 12 V

20

µA

SDZ = 0.8 V, With load and filter, PVCC = 24 V

30

rDS(on)

Drain-source on-state resistance,

measured pin to pin

PVCC = 21 V, Iout = 500 mA, TJ = 25°C

90

mΩ

G

Gain (BTL)

R1 = 5.6 kΩ, R2 = Open

19

20

21

dB

R1 = 20 kΩ, R2 = 100 kΩ

25

26

27

R1 = 39 kΩ, R2 = 100 kΩ

31

32

33

dB

R1 = 47 kΩ, R2 = 75 kΩ

35

36

37

G

Gain (SLV)

R1 = 51 kΩ, R2 = 51 kΩ

19

20

21

dB

R1 = 75 kΩ, R2 = 47 kΩ

25

26

27

R1 = 100 kΩ, R2 = 39 kΩ

31

32

33

dB

R1 = 100 kΩ, R2 = 16 kΩ

35

36

37

ton

Turn-on time

SDZ = 2 V

40

ms

tOFF

Turn-off time

SDZ = 0.8 V

2

µs

GVDD

Gate drive supply

IGVDD < 200 µA

5.1

5.6

6.3

V

VO

Output voltage maximum under PLIMIT

control

V(PLIMIT) = 2 V; VI = 1 Vrms

6.75

8.2

8.75

V

6.6 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 = 20 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

30

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