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參數(shù)資料
| 型號： | TAS5110DAP |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | TRUE DIGITAL AUDIO AMPLIFIER TAS5110 PWM POWER OUTPUT STAGE |
| 中文描述： | 真正的數(shù)字音頻放大器TAS5110的PWM功率輸出級 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 264K |
| 代理商： | TAS5110DAP |
TAS5110
SLES028A
–
MAY 2002
–
REVISED SEPTEMBER 2002
9
www.ti.com
device operation
power sequences
system power-up/power-down sequencing
The recommended power-up/power-down sequence is shown in Figure 3. For proper operation the RESET
signal should be kept low when both DVDD and output power (PVDDA1, PVDDA2, PVDDB1, and PVDDB2)
are being applied. The RESET signal should remain low for at least 1 ms after output power is applied.
> 1 ms
DVDD
PWDN
PVDDA2
PVDDB2
RESET
> 1 ms
> 100
μ
s
> 100
μ
s
PVDDA1
PVDDB1
For most applications, it is recommended that the PWDN pin be connected directly to the DVDD pin.
Figure 3. Power-Up/Power-Down Sequence
RESET function
The device is put into a reset condition when the (active low) RESET signal is asserted. While in the reset state,
the input H-bridge control signals consisting of PWM_AP, PWM_AM, PWM_BP, and PWM_BM are ignored, and
the H-bridge MOSFETs are placed in a state where OUTPUTA and OUTPUTB are both low. Asserting the
RESET signal low also causes the short circuit protection latch to be reset. The RESET signal is normally
connected to the VALID signal from the TAS50xx.
reinitialization sequence
Proper initial conditions for this device include asserting the RESET signal until the reset operation has
completed (1 ms). Additionally, when using this device with the TAS50xx controller, this function can be
accomplished by asserting the reset pin on the TAS50xx during the reset sequence (see Figure 3).
audio application considerations
optimal power transfer for H-bridge
The TAS5110 is a power H-bridge that is designed to deliver a maximum of 50 W RMS into a 6-
load. In order
to achieve 50 W into 6
, the system designer must provide an adequate thermal design. See the
Thermal
Methodology for the 32-Pin DAD Package 50 W, 6-
Test
and the
Thermal Methodology for the 32-Pin DAP
Package 50 W, 6-
sections for a discussion of possible thermal solutions. Careful attention must be given to
the value of the high-voltage power supply level for a given load resistance. See recommended operating
conditions. See the
Maximum Available Power at Common Load Impedances for Both DAP and DAD Packages
section.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5110DAPR | 功能描述:音頻放大器 Dig Amp Power Stage 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5110DAPRG4 | 功能描述:音頻放大器 Dig Amp Power Stage 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5110IDAD | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRUE DIGITAL AUDIO AMPLIFIER TAS5110 PWM POWER OUTPUT STAGE |
| TAS5110IDADR | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRUE DIGITAL AUDIO AMPLIFIER TAS5110 PWM POWER OUTPUT STAGE |
| TAS5110IDAP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRUE DIGITAL AUDIO AMPLIFIER TAS5110 PWM POWER OUTPUT STAGE |
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