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| 型號(hào)： | MAX9741ETN+TD |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 9/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO PWR 12W STER 56TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | D 類 |
| 輸出類型： | 2 通道（立體聲） |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 12W x 2 @ 8 歐姆 |
| 電源電壓： | 10 V ~ 25 V |
| 特點(diǎn)： | 消除爆音，差分輸入，靜音，短路和熱保護(hù)，關(guān)機(jī) |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 56-TQFN-EP（8x8） |
| 封裝/外殼： | 56-WFQFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
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MAX9741
12W+12W, Low-EMI, Spread-Spectrum,
Stereo, Class D Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(All voltages referenced to GND.)
VDD to PGND, AGND .............................................................30V
OUTR_, OUTL_, C1N..................................-0.3V to (VDD + 0.3V)
C1P............................................(VDD - 0.3V) to (CHOLD + 0.3V)
CHOLD ........................................................(VDD - 0.3V) to +40V
SHDN, FS_, G_ ...........................................................-6.3V to 8V
All Other Pins to GND.............................................-0.3V to +12V
Duration of OUTR_/OUTL_
Short Circuit to GND, VDD ......................................Continuous
Continuous Input Current (VDD, PGND) ..................................2A
Continuous Input Current (all other pins)..........................
±20mA
Thermal Limits (Note 1)
Continuous Power Dissipation (TA = +70°C)
Single-Layer PC Board
56-Pin TQFN (derate 28.6mW/°C above +70°C) ............2.29W
θJA ................................................................................ 35°C/W
θJC............................................................................... 0.6°C/W
Continuous Power Dissipation (TA = +70°C)
Multiple-Layer PC Board
56-Pin TQFN (derate 47.6mW/°C above +70°C) ............3.81W
θJA................................................................................ 21°C/W
θJC............................................................................... 0.6°C/W
Junction Temperature ......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(VDD = 18V, GND = PGND = 0V, SHDN
≥ VIH, AV = 16dB, CSS = CIN = 0.47F, CREG = 0.01F, C1 = 100nF, C2 = 1F, FS1 = FS2 =
GND (fS = 670kHz), RL connected between OUTL+ and OUTL- and OUTR+ and OUTR-, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Supply Voltage Range
VDD
Inferred from PSRR test
10
25
V
Quiescent Current
IDD
RL = Open
26
37
mA
Shutdown Current
ISHDN
0.2
1.5
A
CSS = 470nF
100
Turn-On Time
tON
CSS = 180nF
50
ms
Amplifier Output Resistance in
Shutdown
SHDN = GND
150
320
k
AV = 13dB
35
53
80
AV = 16dB
30
45
65
AV = 19.1dB
23
36
55
Input Impedance
RIN
AV = 29.6dB
10
14.3
22
k
G1 = L, G2 = L
29.4
29.6
29.8
G1 = L, G2 = H
18.9
19.1
19.3
G1 = H, G2 = L
12.8
13
13.2
Voltage Gain
AV
G1 = H, G2 = H
15.9
16
16.3
dB
Gain Matching
Between channels
0.5
%
Output Offset Voltage
VOS
±5
±30
mV
Common-Mode Rejection Ratio
CMRR
fIN = 1kHz, input referred
60
dB
VDD = 10V to 25V
48
83
fRIPPLE = 1kHz
80
Power-Supply Rejection Ratio
(Note 3)
PSRR
200mVP-P ripple
fRIPPLE = 20kHz
60
dB
Note 1: Thermal performance of this device is highly dependant on PC board layout. See the Applications Information for more
detail.
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