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TAS5602

更新时间： 2024-09-15 04:29:03
品牌 Logo 应用领域
德州仪器 - TI 放大器
页数 文件大小 规格书
29页 1077K
描述
20W STEREO DIGITAL AMPLIFIER POWER STAGE

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TAS5602 数据手册

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TAS5602  
www.ti.com ...................................................................................................................................................................................................... SLAS593–JUNE 2008  
20W STEREO DIGITAL AMPLIFIER POWER STAGE  
1
FEATURES  
•
Integrated Self-Protection Circuits Including  
Overvoltage, Undervoltage, Overtemperature,  
and Short Circuit With Error Reporting  
23  
•
Supports Multiple Output Configurations  
–
–
–
2×20-W into a 8-Ω BTL Load at 18 V  
4×10-W into a 4-Ω SE Load at 18 V  
2×10W (SE) + 1×20W (BTL) at 18 V  
APPLICATIONS  
•
Flat-Panel, Rear-Projection, and CRT TV  
•
•
Thermally Enhanced Package  
DCA (56-pin HTTSOP)  
Wide Voltage Range: 10V–26V  
•
Consumer Audio Applications  
–
DESCRIPTION  
–
No Separate Supply Required for Gate  
Drive  
The TAS5602 is a 20-W (per channel) efficient,  
stereo digital amplifier power stage for driving 4  
single-ended speakers, 2 bridge-tied speakers, or  
combination of single and bridge-tied loads. The  
TAS5602 can drive a speaker with an impedance as  
low as 4Ω. The high efficiency of the TAS5602  
eliminates the need for an external heat sink.  
•
•
Efficient Class-D Operation Eliminates Need  
for Heat Sinks  
Closed Loop Power Stage Architecture  
–
Improved PSRR Reduces Power Supply  
Performance Requirements  
A simple interface to a digital audio PWM processor  
is shown below. The TAS5602 is fully protected  
against faults with short-circuit protection and thermal  
protection as well as overvoltage and undervoltage  
protection. Faults are reported back to the processor  
to prevent devices from being damaged during  
overload conditions.  
–
High Damping Factor Provides for Tighter,  
More Accurate Sound With Improved Bass  
Response  
–
Constant Output Power Over Variation in  
Supply Voltage  
•
Differential Inputs  
SIMPLIFIED APPLICATION CIRCUIT  
3 - 4.2 V  
TAS5602  
Digital PWM Processor  
10 - 26 V  
DVDD  
DGND  
DVDD  
DGND  
PVCC  
AVCC  
OUTA_P  
OUTA_N  
PWM_AP  
PWM_BP  
BSA  
2
I
S
OUTA  
OUTB  
LC  
Filter  
BSB  
BSC  
OUTB_P  
OUTB_N  
PWM_CP  
PWM_DP  
OUTC  
OUTD  
Control  
Inputs  
LC  
Filter  
BSD  
HIZ  
VCLAMP_AB  
VCLAMP_CD  
VALID  
ERROR  
GPIO  
RESET  
BYPASS  
FAULT  
THERM_WARN  
AGND  
PGND  
SE/BTL  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
3
PowerPad is a trademark of Texas Instruments.  
System Two, Audio Precision are trademarks of Audio Precision, Inc.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008, Texas Instruments Incorporated  
1234567...29

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