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The TAS5112 is a high-performance, integrated stereo digital amplifier power stage designed to drive 6- speakers at up to 50 W per channel. The device incorporates TI's PurePath Digital technology and is used with a digital audio PWM processor (TAS50XX) and a simple passive demodulation filter to deliver high-quality, high-efficiency, true-digital audio amplification.
The efficiency of this digital amplifier is typically 90%, reducing the size of both the power supplies and heatsinks needed. Overcurrent protection, overtemperature protection, and undervoltage protection are built into the TAS5112, safeguarding the device and speakers against fault conditions that could damage the system.
TAS5112 Maximum Ratings
TAS5111
UNITS
DVDD TO DGND
0.3 V to 4.2 V
GVDD TO GND
33.5 V
PVDD_X TO GND (dc voltage)
33.5 V
PVDD_X TO GND (spike voltage(2))
48 V
OUT_X TO GND (dc voltage)
33.5 V
OUT_X TO GND (spike voltage(2))
48 V
BST_X TO GND (dc voltage)
48 V
BST_X TO GND (spike voltage(2))
53 V
GREG TO GND (3)
14.2 V
PWM_XP, RESET, M1, M2, M3, SD, OTW
0.3 V to DVDD + 0.3 V
Maximum operating junction temperature, TJ
40 to 150
Storage temperature
40 to 125
(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 under "recommended operating conditions" is not implied. Exposure to absolutemaximum- rated conditions for extended periods may affect device reliability.
(2) The duration of voltage spike should be less than 100 ns.
(3) GREG is treated as an input when the GREG pin is overdriven by GVDD of 12 V.
TAS5112 Features
` 50 W per Channel (BTL) Into 6 (Stereo) ` 95-dB Dynamic Range With TAS5026 ` Less Than 0.1% THD+N (1 W RMS Into 6 ) ` Less Than 0.2% THD+N (50 W RMS into 6 ) ` Power Efficiency Typically 90% Into 6- Load ` Self-Protecting Design (Undervoltage, Overtemperature and Short Conditions) With Error Reporting ` Internal Gate Drive Supply Voltage Regulator ` EMI Compliant When Used With Recommended System Design
TAS5112 Typical Application
· DVD Receiver · Home Theatre · Mini/Micro Component Systems · Internet Music Appliance
TAS5112 Connection Diagram
TAS5112A General Description
The TAS5112A is a high-performance, integrated stereo digital amplifier power stage designed to drive 6- speakers at up to 50 W per channel. The device incorporates TI's PurePath Digital technology and is used with a digital audio PWM processor (TAS50XX) and a simple passive demodulation filter to deliver high-quality, high-efficiency, true-digital audio amplification.
The efficiency of this digital amplifier is typically 90%, reducing the size of both the power supplies and heatsinks needed. Overcurrent protection, overtemperature protection, and undervoltage protection are built into the TAS5112A, safeguarding the device and speakers against fault conditions that could damage the system.
TAS5112A Maximum Ratings
TAS5111
UNITS
DVDD TO DGND
0.3 V to 4.2 V
GVDD TO GND
33.5 V
PVDD_X TO GND (dc voltage)
33.5 V
PVDD_X TO GND (spike voltage(2))
48 V
OUT_X TO GND (dc voltage)
33.5 V
OUT_X TO GND (spike voltage(2))
48 V
BST_X TO GND (dc voltage)
48 V
BST_X TO GND (spike voltage(2))
53 V
GREG TO GND (3)
14.2 V
PWM_XP, RESET, M1, M2, M3, SD, OTW
0.3 V to DVDD + 0.3 V
Maximum operating junction temperature, TJ
40 to 150
Storage temperature
40 to 125
(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 under "recommended operating conditions" is not implied. Exposure to absolutemaximum- rated conditions for extended periods may affect device reliability.
(2) The duration of voltage spike should be less than 100 ns; see application note SLEA025.
(3) GREG is treated as an input when the GREG pin is overdriven by GVDD of 12 V.
TAS5112A Features
` 50 W per Channel (BTL) Into 6 (Stereo) ` 95-dB Dynamic Range With TAS5026 ` Less Than 0.1% THD+N (1 W RMS Into 6 ) ` Less Than 0.2% THD+N (50 W RMS into 6 ) ` Power Efficiency Typically 90% Into 6- Load ` Self-Protecting Design (Undervoltage, Overtemperature and Short Conditions) With Error Reporting ` Internal Gate Drive Supply Voltage Regulator ` EMI Compliant When Used With Recommended System Design
TAS5112A Typical Application
· DVD Receiver · Home Theatre · Mini/Micro Component Systems · Internet Music Appliance
TAS5112A Connection Diagram
TAS5112ADCAG4 Parameters
Technical/Catalog Information
TAS5112ADCAG4
Vendor
Texas Instruments
Category
Integrated Circuits (ICs)
Package / Case
56-TSSOP Exposed Pad, 56-eTSSOP, 56-HTSSOP
Type
Class D
Output Type
2-Channel (Stereo)
Voltage - Supply
16 V ~ 25.5 V
Packaging
Tube
Features
Depop, Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown