TPA2037D1YFFT datasheet(3/17 Pages) TI

部品番号	TPA2037D1YFFT

部品情報	3.2W Mono Class-D Audio Power Amplifier With 6-dB Gain and Auto Short-Circuit Recovery

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TPA2037D1

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SLOS648 – OCTOBER 2009

ELECTRICAL CHARACTERISTICS

TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output offset voltage (measured

|VOS|

VI = 0 V, VDD = 2.5 V to 5.5 V

1

5

mV

differentially)

|IIH|

High-level EN input current

VDD = 5.5 V, VEN = 5.5 V

50

μA

|IIL|

Low-level EN input current

VDD = 5.5 V, VEN = 0 V

1

μA

VDD = 5.5 V, no load

1.8

2.5

I(Q)

Quiescent current

VDD = 3.6 V, no load

1.5

2.3

mA

VDD = 2.5 V, no load

1.3

2.1

I(SD)

Shutdown current

VEN = 0.35 V, VDD = 3.6 V

0.1

2

μA

RO, SD

Output impedance in shutdown mode

VEN = 0.35 V

2

k

Ω

f(SW)

Switching frequency

VDD = 2.5 V to 5.5 V

250

300

350

kHz

AV

Gain

VDD = 2.5 V to 5.5 V, RL = no load

5.5

6.0

6.5

dB

REN

Resistance from EN to GND

300

k

Ω

RIN

Single ended input resistance

VEN ≥ VIH

150

k

Ω

VEN ≤ VIL

75

OPERATING CHARACTERISTICS

VDD = 3.6 V, TA = 25°C, RL = 8 Ω (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VDD = 5 V

3.24

THD + N = 10%, f = 1 kHz, RL = 4 Ω

VDD = 3.6 V

1.62

W

VDD = 2.5 V

0.70

VDD = 5 V

2.57

THD + N = 1%, f = 1 kHz, RL = 4 Ω

VDD = 3.6 V

1.32

W

VDD = 2.5 V

0.57

PO

Output power

VDD = 5 V

1.80

THD + N = 10%, f = 1 kHz, RL = 8 Ω

VDD = 3.6 V

0.91

W

VDD = 2.5 V

0.42

VDD = 5 V

1.46

THD + N = 1%, f = 1 kHz, RL = 8 Ω

VDD = 3.6 V

0.74

W

VDD = 2.5 V

0.33

VDD = 3.6 V, Inputs AC grounded

A-weighting

20

Vn

Noise output voltage

μVRMS

with CI = 2μF, f = 20 Hz to 20 kHz

No weighting

26

VDD = 5.0 V, PO = 1.0 W, f = 1 kHz, RL = 8 Ω

0.12%

VDD = 3.6 V, PO = 0.5 W, f = 1 kHz, RL = 8 Ω

0.05%

VDD = 2.5 V, PO = 0.2 W, f = 1 kHz, RL = 8 Ω

0.05%

Total harmonic distortion plus

THD+N

noise

VDD = 5.0 V, PO = 2.0 W, f = 1 kHz, RL = 4 Ω

0.32%

VDD = 3.6 V, PO = 1.0 W, f = 1 kHz, RL = 4 Ω

0.11%

VDD = 2.5 V, PO = 0.4 W, f = 1 kHz, RL = 4 Ω

0.12%

VDD = 3.6 V, Inputs AC grounded with CI = 2 μF,

PSRR

AC power supply rejection ratio

81

dB

200 mVpp ripple, f = 217 Hz

CMRR

Common mode rejection ratio

VDD = 3.6 V, VIC = 1 VPP, f = 217 Hz

79

dB

TSU

Startup time from shutdown

VDD = 3.6 V

4

ms

VDD = 3.6 V, VO+ shorted to VDD

2

VDD = 3.6 V, VO– shorted to VDD

2

Short circuit protection

ISC

VDD = 3.6 V, VO+ shorted to GND

2

A

threshold

VDD = 3.6 V, VO– shorted to GND

2

VDD = 3.6 V, VO+ shorted to VO–

2

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