參數(shù)資料
型號(hào)： MAX9791AETI+
廠商： Maxim Integrated Products
文件頁數(shù)： 12/34頁
文件大?。?/td> 0K
描述： IC AMP AUDIO 2.2W STER D 28TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 75
系列： DirectDrive®
類型： D 類
輸出類型： 2-通道（立體聲）帶立體聲耳機(jī)和超低音器
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 2.2W x 2 @ 4 歐姆; 180mW x 2 @ 32 歐姆
電源電壓： 4.5 V ~ 5.5 V
特點(diǎn)： 消除爆音，LDO，短路保護(hù)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： 28-TQFN-EP（5x5）
封裝/外殼： 28-WFQFN 裸露焊盤
包裝： 管件
MAX9791/MAX9792
Windows Vista-Compliant Class D Speaker
Amplifiers with DirectDrive Headphone Amplifiers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VAVDD = VPVDD = VHPVDD = 5V, VGND = VPGND = VCPGND = 0, ILDO_OUT = 0, CLDO = 2F (CLDO = 4F for 1.8V LDO option),
C1 = C2 = 1F. RL = ∞, unless otherwise specified. RIN1 = 20k (AVSPKR = 12dB), RIN2 = 40.2k (AVHP = 0dB), CIN1 = 470nF,
CIN2 =CCOM = 1F, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
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.
Supply Voltage
(AVDD, PVDD, HPVDD to GND)........................-0.3V to +6.0V
(AVDD to PVDD) .............................................................±0.3V
GND to PGND, CPGND ......................................................±0.3V
CPVSS, C1N to GND ............................................-6.0V to + 0.3V
HPL, HPR to CPVSS ...........................................-0.3V to lower of
(HPVDD - CPVSS + 0.3V) and +9V
HPL, HPR to HPVDD..................................+0.3V to the higher of
(CPVSS - HPVDD - 0.3V) and -9V
COM, SENSE........................................................-0.3V to + 0.3V
Any Other Pin ..........................................-0.3V to (AVDD + 0.3V)
Duration of Short Circuit between OUT_+, OUT_- and GND,
PGND, AVDD, or PVDD..........................................Continuous
Duration of Short Circuit between LDO_OUT and AVDD,
GND (Note 1) .........................................................Continuous
Duration of Short Circuit between HPR, HPL and
GND .......................................................................Continuous
Continuous Current (PVDD, OUT_+, OUT_-, PGND)............1.7A
Continuous Current (C1N, C1P, CPVSS, AVDD, HPVDD,
LDO_OUT, HPR, HPL) ..................................................850mA
Continuous Input Current (All Other Pins) ........................±20mA
Continuous Power Dissipation (TA = +70°C)
28-Pin Thin QFN Single-Layer Board (derate 20.8mW/°C
above +70°C)..........................................................1667mW
Junction-to-Ambient Thermal Resistance (
θJA)
(Note 2) .....................................................................40°C/W
Junction-to-Case Thermal Resistance (
θJC)
(Note 2) ....................................................................2.7°C/W
28-Pin Thin QFN Multilayer Board (derate 28.6mW/°C
above +70°C)..........................................................2286mW
Junction-to-Ambient Thermal Resistance (
θJA)
(Note 2) .....................................................................35°C/W
Junction-to-Case Thermal Resistance (
θJC)
(Note 2) ....................................................................2.7°C/W
ESD Protection, Human Body Model ...................................±2kV
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Supply Voltage
VAVDD,
VPVDD
Guaranteed by PSRR test (Note 4)
2.7
5.5
V
Headphone Supply Voltage
VHPVDD
Guaranteed by PSRR test
2.7
5.5
V
Undervoltage Lockout
UVLO
2.65
V
SPKR_EN
HP_EN
LDO_EN
1
0
1
250
400
A
1
0
4.4
6
0
10.5
15
MAX9791
0
1
0
14.4
21
mA
1
0
1
250
400
A
1
0
4.4
6
0
10.5
18
Quiescent Current
IAVDD +
IPVD +
IHPVDD
MAX9792
0
1
0
14.4
24
mA
Shutdown Current
ISHDN
SPKR_EN = 1.8V
3.3
7..3
A
Bias Voltage
VBIAS
HP_INR, HP_INL, SPKR_INR, SPKR_INL
0
V
Note 1: If short is present at power-up.
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
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參數(shù)描述
MAX9791AETI+ 功能描述:音頻放大器 Windows Vista Class D Speaker Amp 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
MAX9791AETI+T 功能描述:音頻放大器 Windows Vista Class D Speaker Amp 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
MAX9791AEVKIT+ 功能描述:音頻放大器 Programmers, Development Systems 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
MAX9791BETI+ 功能描述:音頻放大器 Windows Vista Class D Speaker Amp 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
MAX9791BETI+T 功能描述:音頻放大器 Windows Vista Class D Speaker Amp 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
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