IC AMP AUDIO PWR 93W D 32TSSOP

TAS5111DADR

Manufacturer Part NumberTAS5111DADR
DescriptionIC AMP AUDIO PWR 93W D 32TSSOP
ManufacturerTexas Instruments
SeriesPurePath Digital™
TypeClass D
TAS5111DADR datasheet
 


Specifications of TAS5111DADR

Output Type1-Channel (Mono)Max Output Power X Channels @ Load93W x 1 @ 4 Ohm
Voltage - Supply3 V ~ 3.6 VFeaturesDigital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
Mounting TypeSurface MountPackage / Case32-TSSOP Exposed Pad, 32-eTSSOP, 32-HTSSOP
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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DIGITAL AMPLIFIER POWER STAGE
FEATURES
D
70-W RMS Power (BTL) Into 4 Ω With Less
Than 0.2% THD+N
D
95-dB Dynamic Range (TDAA System With
TAS5026)
D
Power Efficiency Greater Than 90% Into 4-Ω
and 8-Ω Loads
− Smaller Power Supplies
D
Self-Protecting Design With Autorecovery
D
32-Pin TSSOP (DAD) PowerPAD Package
D
3.3-V Digital Interface
D
EMI-Compliant When Used With
Recommended System Design
APPLICATIONS
D
DVD Receiver
THD + NOISE vs OUTPUT POWER
1
R L = 4 Ω
T C = 75°C
0.1
0.01
100m
1
10
P O − Output Power − W
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.
PurePath Digital and PowerPAD are trademarks of Texas Instruments. Other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
SLES049D − JULY 2003 − REVISED MARCH 2004
D
Home Theatre
D
Mini/Micro Component Systems
D
Internet Music Appliance
DESCRIPTION
The TAS5111 is a high-performance digital amplifier power
stage designed to drive a 4-Ω speaker up to 70 W with
0.2% distortion plus noise. 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
digital audio amplification.
The efficiency of this digital amplifier can be greater than
90%, depending on the system design. Overcurrent
protection, overtemperature protection, and undervoltage
protection are built into the TAS5111, safeguarding the
device and speakers against fault conditions that could
damage the system.
THD + NOISE vs FREQUENCY
1
R L = 4 Ω
T C = 75°C
0.1
P O = 1 W
P O = 10 W
0.01
0.001
100
20
100
f − Frequency − Hz
Copyright  2004, Texas Instruments Incorporated
TAS5111
TM
P O = 70 W
1k
10k
20k

TAS5111DADR Summary of contents

  • Page 1

    ... P O − Output Power − W 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. PurePath Digital and PowerPAD are trademarks of Texas Instruments. Other trademarks are the property of their respective owners. ...

  • Page 2

    TAS5111 SLES049D − JULY 2003 − REVISED MARCH 2004 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS ...

  • Page 3

    TERMINAL FUNCTION (1) FUNCTION (1) NAME NO. BST_A 19 P High side bootstrap supply (BST), external capacitor to OUT_A required BST_B 30 P High side bootstrap supply (BST), external capacitor to OUT_B required DGND I/O reference ...

  • Page 4

    TAS5111 SLES049D − JULY 2003 − REVISED MARCH 2004 FUNCTIONAL BLOCK DIAGRAM PWM_AP PWM Receiver RESET PWM_BP PWM Receiver To Protection Blocks OTW OT Protection SD UVP 4 GREG Gate Drive Timing Control Gate Drive Protection A GREG Protection B ...

  • Page 5

    RECOMMENDED OPERATING CONDITIONS Digital supply (1) DVDD Supply for internal gate drive and logic GVDD regulators PVDD_x Half-bridge supply T J Junction temperature ( recommended for DVDD to be connected to DREG via a 100-Ω resistor. ELECTRICAL ...

  • Page 6

    TAS5111 SLES049D − JULY 2003 − REVISED MARCH 2004 ELECTRICAL CHARACTERISTICS PVDD_X = 29.5 V, GVDD = 29.5 V, connected to DREG via a 100-Ω resistor Ω 384 kHz, unless otherwise noted ...

  • Page 7

    SYSTEM CONFIGURATION USED FOR CHARACTERIZATION PWM_AP_1 PWM_AM_1 VALID_1 100 nF 100 nF PWM PROCESSOR TAS5026 100 Ω 100 nF ERR_RCVY L PCB : TRACK IN THE PCB (1,0 mm wide and 50 mm long) { Voltage suppressor diodes: 1SMA33CAT ...

  • Page 8

    TAS5111 SLES049D − JULY 2003 − REVISED MARCH 2004 TYPICAL CHARACTERISTICS AND SYSTEM PERFORMANCE OF TAS5111 EVM WITH TAS5026 PROCESSOR TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY Ω 75° ...

  • Page 9

    SYSTEM OUTPUT STAGE EFFICIENCY vs OUTPUT POWER 100 kHz Ω 75° ...

  • Page 10

    TAS5111 SLES049D − JULY 2003 − REVISED MARCH 2004 THEORY OF OPERATION POWER SUPPLIES The power device only requires two supply voltages, GVDD and PVDD_X. GVDD is the gate drive supply for the device, regulated internally down to approximately 12 ...

  • Page 11

    In practice, this means that the DVDD-to-PWM processor (front-end) should be stable and initialization should be completed before RESET is de-asserted to the back end. CONTROL I/O Shutdown Pin: SD The SD pin functions as an output pin and ...

  • Page 12

    TAS5111 SLES049D − JULY 2003 − REVISED MARCH 2004 Timing and Function The function of the autorecovery circuit is as follows error event occurs and sets the protection latch (output stage goes Hi-Z). 2. The counter is started. ...

  • Page 13

    If this rule is observed, the TAS5111 does not have distortion issues due to the output inductors, and overcurrent conditions do not occur due to inductor saturation in the output filter. Another parameter to be considered is the idle ...

  • Page 14

    TAS5111 SLES049D − JULY 2003 − REVISED MARCH 2004 As an indication of the importance of keeping the thermal grease layer thin, if the thermal grease layer increases to 0.002 inches thick, the required heatsink thermal resistance changes to 2.4°C/W. ...

  • Page 15

    TAS5111 SLES049D − JULY 2003 − REVISED MARCH 2004 15 ...

  • Page 16

    ... TAS5111DAD NRND TAS5111DADG4 NRND TAS5111DADR NRND TAS5111DADRG4 NRND (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design ...

  • Page 17

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  • Page 18

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...