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TPA2080D1 数据表(PDF) 6 Page - Texas Instruments

部件名 TPA2080D1
功能描述  Constant Output Power Class-D Audio Amplifier
Download  29 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TPA2080D1 数据表(HTML) 6 Page - Texas Instruments

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6
TPA2080D1
SLOS733B – JANUARY 2012 – REVISED APRIL 2016
www.ti.com
Product Folder Links: TPA2080D1
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
(1)
A-weighted
7.6 Operating Characteristics
VBAT= 3.6 V, EN = VBAT, TA = 25°C, RL = 8 Ω + 33 μH (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
BOOST CONVERTER
PVDD
Boost converter output voltage range
IBOOST = 0 mA
5.4
5.75
6.4
V
IBOOST = 700 mA
5.6
IL
Boost converter input current limit
Power supply current
1800
mA
Boost converter start-up current limit
Boost converter starts up from full shutdown
600
Boost converter wakes up from auto-pass
through mode
1000
fBOOST
Boost converter frequency
1.2
MHz
CLASS-D AMPLIFIER
PO
Output power
THD = 1%, VBAT = 2.5 V, f = 1 kHz
1440
mW
THD = 1%, VBAT = 3 V, f = 1 kHz
1750
THD = 1%, VBAT = 3.6 V, f = 1 kHz
1900
THD = 1%, VBAT = 2.5 V, f = 1 kHz, RL = 4 Ω +
33 µH
1460
THD = 1%, VBAT = 3 V, f = 1 kHz, RL = 4 Ω +
33 µH
1800
THD = 1%, VBAT = 3.6 V, f = 1 kHz, RL = 4 Ω +
33 µH
2280
AV
Voltage gain
19.5
20
20.5
dB
VOOS
Output offset voltage
2
10
mV
Short-circuit protection threshold current
2
A
RIN
Input impedance (per input pin)
24
k
Input impedance in shutdown (per input
pin)
EN = 0 V
1300
ZO
Output impedance in shutdown
2
k
Maximum input voltage swing
EN = 0 V
2
VRMS
Boost converter auto-pass through
threshold
Class-D output voltage threshold when boost
converter automatically turns on
2
VPK
fCLASS-D
Class-D switching frequency
275
300
325
kHz
η
Class-D and boost combined efficiency
PO = 500 mW, VBAT = 3.6 V
90%
EN
Noise output voltage
A-weighted
49
μVRMS
Unweighted
65
SNR
Signal-to-noise ratio
1.7 W, RL = 8 Ω + 33 µH. A-weighted
97.5
dB
1.7 W, RL = 8 Ω + 33 µH. Unweighted
95
2 W, RL = 4 Ω + 33 µH. A-weighted
95
2 W, RL = 4 Ω + 33 µH. Unweighted
93
THD+N
Total harmonic distortion plus noise(1)
PO = 100 mW, f = 1 kHz
0.06%
PO = 500 mW, f = 1 kHz
0.07%
PO = 1.7 W, f = 1 kHz, RL = 8 Ω + 33 µH
0.07%
PO = 2 W, f = 1 kHz, RL = 4 Ω + 33 µH
0.15%
AC
PSRR
AC-Power supply ripple rejection (output
referred)
200 mVPP square ripple, VBAT = 3.8 V, f = 217
Hz
62.5
dB
200 mVPP square ripple, VBAT = 3.8 V, f = 1 kHz
62.5
AC
CMRR
AC-Common mode rejection ratio (output
referred)
200 mVPP square ripple, VBAT = 3.8 V, f = 217
Hz
71
dB
200 mVPP square ripple, VBAT = 3.8 V, f = 1 kHz
71


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