參數(shù)資料
型號： MAX9744ETH+T
廠商： Maxim Integrated Products
文件頁數(shù)： 12/28頁
文件大小： 0K
描述： IC AMP AUDIO PWR 22.5W D 44TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 1
類型： D 類
輸出類型： 2 通道（立體聲）
在某負載時最大輸出功率 x 通道數(shù)量： 22.5W x 2 @ 4 歐姆
電源電壓： 4.5 V ~ 14 V
特點： 消除爆音，靜音，短路和熱保護，關(guān)機，音量控制
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 44-TQFN-EP（7x7）
封裝/外殼： 44-WFQFN 裸露焊盤
包裝： 標準包裝
其它名稱： MAX9744ETH+TDKR
MAX9744
20W Stereo Class D Speaker Amplifier
with Volume Control
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VPVDD = 12V, VDD = 3.3V, VGND = VPGND = 0V, VMUTE = 0V; max volume setting; all speaker load resistors connected between
OUT_+ and OUT_-, RL = ∞, unless otherwise stated, CBOOT_ = 0.1F, CBIAS = 2.2F, CIN = 0.47F, RIN = 20kΩ, RF_ = 20kΩ, spread-
spectrum mode, filterless modulation mode, see the
Functional Diagrams/Typical Application Circuits. TA = TMIN to TMAX, unless oth-
erwise noted. Typical values are at TA = +25°C.) (Note 1)
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.
PVDD to PGND ....................................................................+16V
VDD to GND ...........................................................................+4V
FB_, SYNCOUT, SYNC, SDA/VOL, ADDR1,
ADDR2 to GND........................................-0.3V to (VDD + 0.3V)
BOOT_ to VDD ..........................................................-0.3V to +6V
BOOT_ to OUT_........................................................-0.3V to +6V
OUT_ to GND ..........................................-0.3V to (PVDD + 0.3V)
PGND to GND .......................................................-0.3V to +0.3V
Any Other Pin to GND ..............................................-0.3V to +4V
OUT_, Short-Circuit Duration......................................Continuous
Continuous Power Dissipation (TA = +70°C)
44-Pin Thin QFN (derate 27mW/°C above +70°C,
single-layer board) ...................................................2162mW
44-Pin Thin QFN (derate 37mW/°C above +70°C,
multilayer board) ......................................................2963mW
θJA, Single-Layer Board................................................37°C/W
θJA, Multilayer Board ................................................….27°C/W
Continuous Input Current (PVDD, PGND).............................6.4A
Continuous Output Current (OUT_) ......................................3.2A
Continuous Input Current (except OUT_).........................±20mA
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
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Speaker Amplifier Supply Voltage
Range
PVDD
Inferred from PSRR test
4.5
14
V
Supply Voltage Range
VDD
Inferred from PSRR test
2.7
3.6
V
IDD
20
35
Quiescent Current
IPVDD
10
20
mA
IVDDSHDN
TA = +25°C
0.1
1
Shutdown Current
IPVDDSHDN
TA = +25°C
0.1
1
A
Turn-On Time
tON
200
ms
Common-Mode Bias Voltage
VBIAS
1.5
V
Input Amplifier Output-Voltage
Swing High
VOH
Specified as VDD – VOH, RL = 2k
Ω
connected to 1.5V
20
mV
Input Amplifier Output-Voltage
Swing Low
VOL
Specified as VOL – GND, RL = 2k
Ω
connected to 1.5V
20
mV
Input Amplifier Output Short-
Circuit Current Limit
±60
mA
Input Amplifier Gain-Bandwidth
Product
GBW
1.8
MHz
SPEAKER AMPLIFIERS
Output stage gain
29.5
Gain
AVMAX
Maximum
volume setting
Total gain (Note 2)
29.5
dB
Output Offset
VOS
TA = 25°C
±2
±15
mV
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9744EVCMAXQU+ 功能描述:音頻放大器 Evaluation Kit/Evaluation System for the MAX9744 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9744EVKIT+ 功能描述:音頻放大器 Evaluation Kit/Evaluation System for the MAX9744 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX974CPE 功能描述:校驗器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MAX974CPE+ 功能描述:校驗器 IC Dual Comparator / Reference RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MAX974CSE 功能描述:校驗器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
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