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參數(shù)資料
| 型號： | TDF8555J/N1 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37 |
| 封裝： | PLASTIC, SOT725-1, 37 PIN |
| 文件頁數(shù)： | 12/55頁 |
| 文件大?。?/td> | 534K |
| 代理商： | TDF8555J/N1 |
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TDF8555J
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 29 August 2011
2 of 55
NXP Semiconductors
TDF8555J
4
45 W power amplifier with multiple voltage regulator
Programmable thermal pre-warning
If the temperature protection of the regulator is activated, the amplifier is muted
before the regulator is switched off
Loss of ground and open VP safe (with 150 m series impedance and a maximum
supply decoupling capacitor of 2200
F)
All amplifier outputs short-circuit proof to ground, supply voltage and across the
load (channel independent)
All pins short-circuit proof to ground
Temperature-controlled gain reduction to prevent audio holes at high junction
temperatures
Programmable low battery voltage detection to enable 7.5 V or 6 V minimum
battery voltage operation
Overvoltage protection (load-dump safe up to VP = 50 V) and overvoltage
pre-warning at 16 V
Offset detection
Multiple regulator
Good stability for any regulator with almost any output capacitor
Six voltage regulators (microcontroller, display, audio processor, tuner, bus,
mechanical digital and drive)
I2C-bus controlled
Selectable output voltages for regulators 1, 4 and 5
Low dropout voltage PNP output stages
High supply voltage ripple rejection
Low noise for all regulators
Two power switches (antenna switch and amplifier switch)
Standby regulators 2 and 6 (microcontroller and I2C-bus supply) operational during
load dump and thermal shut-down
Low standby quiescent current (only regulators 2 and 6 operational)
Second supply pin for connecting optional external DC-to-DC converter to reduce
internal dissipation of regulator 3
Backup functionality for regulator 2
Protection
If connection to the battery voltage is reversed, all regulator voltages will be zero
Able to withstand output voltages up to 18 V if supply line is short-circuited
Thermal protection to avoid thermal breakdown
Load-dump protection
Regulator outputs protected from DC short-circuit to ground or to supply voltage
All regulators protected by foldback current limiting
Power switches protected from loss-of-ground
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDF8590TH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 X 80 W SE (4 OHM) or 1 X 160 W BTL (8 OHM) class-D amplifier |
| TDF8590TH/N1,118 | 功能描述:音頻放大器 AMPLIFIER CLASS D 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 |
| TDF8590TH/N1S,118 | 功能描述:音頻放大器 4/8 OHM CLASS D 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 |
| TDF8590TH/N1-T | 功能描述:音頻放大器 AMPLIFIER CLASS D 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 |
| TDF8590TH/N1TJ | 制造商:NXP Semiconductors 功能描述:- Tape and Reel |
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