TAS5112DFDG4

Manufacturer Part NumberTAS5112DFDG4
DescriptionIC AMP AUDIO PWR 62W D 56TSSOP
ManufacturerTexas Instruments
SeriesPurePath Digital™
TypeClass D
TAS5112DFDG4 datasheet
 


Specifications of TAS5112DFDG4

Output Type2-Channel (Stereo)Max Output Power X Channels @ Load62W x 2 @ 6 Ohm
Voltage - Supply16 V ~ 25.5 VFeaturesDepop, Digital Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
Mounting TypeSurface MountPackage / Case56-TSSOP Exposed Pad, 56-eTSSOP, 56-HTSSOP
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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DIGITAL AMPLIFIER POWER STAGE
FEATURES
D
50 W per Channel (BTL) Into 6 Ω (Stereo)
D
95-dB Dynamic Range With TAS5026
D
Less Than 0.1% THD+N (1 W RMS Into 6 Ω)
D
Less Than 0.2% THD+N (50 W RMS into 6 Ω)
D
Power Efficiency Typically 90% Into 6-Ω Load
D
Self-Protecting Design (Undervoltage,
Overtemperature and Short Conditions) With
Error Reporting
D
Internal Gate Drive Supply Voltage Regulator
D
EMI Compliant When Used With
Recommended System Design
THD + NOISE vs OUTPUT POWER
1
R L = 6 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.
SLES048C − JULY 2003 − REVISED MARCH 2004
APPLICATIONS
D
DVD Receiver
D
Home Theatre
D
Mini/Micro Component Systems
D
Internet Music Appliance
DESCRIPTION
The TAS5112 is a high-performance, integrated stereo
digital amplifier power stage designed to drive 6-Ω
speakers at up to 50 W per channel. The device
incorporates TI’s PurePath Digitalt 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,
protection, and undervoltage protection are built into the
TAS5112, safeguarding the device and speakers against
fault conditions that could damage the system.
THD + NOISE vs FREQUENCY
1
R L = 6 Ω
T C = 75°C
0.1
P O = 10 W
P O = 1 W
0.01
0.001
100
20
100
f − Frequency − Hz
Copyright  2004, Texas Instruments Incorporated
TAS5112
TM
overtemperature
P O = 50 W
1k
10k
20k

TAS5112DFDG4 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

    TAS5112 SLES048C − 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 31 P BST_B 42 P BST_C 43 P BST_D 54 P DGND 23 P DREG 16 P DREG_RTN 12 P DVDD 25 P GND 1, 2, 22, 24, P 27, 28, ...

  • Page 4

    TAS5112 SLES048C − 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 This diagram shows one channel. 4 GREG Gate Drive Timing Control Gate Drive ...

  • 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

    TAS5112 SLES048C − JULY 2003 − REVISED MARCH 2004 ELECTRICAL CHARACTERISTICS PVDD_x = 29.5 V, GVDD = 29.5 V, DVDD connected to DREG via a 100-Ω resistor Ω 384 kHz, unless otherwise ...

  • Page 7

    SYSTEM CONFIGURATION USED FOR CHARACTERIZATION 1 1 µ ERR_RCVY 7 PWM_AP_1 8 PWM_AM_1 9 VALID_1 100 nF 13 PWM PROCESSOR 14 TAS5026 PWM_AP_2 18 PWM_AM_2 19 VALID_2 20 ...

  • Page 8

    TAS5112 SLES048C − JULY 2003 − REVISED MARCH 2004 TYPICAL CHARACTERISTICS AND SYSTEM PERFORMANCE OF TAS5112 EVM WITH TAS5026 PWM PROCESSOR TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY Ω 75° ...

  • Page 9

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

  • Page 10

    TAS5112 SLES048C − JULY 2003 − REVISED MARCH 2004 200 190 180 170 160 150 140 130 120 0 10 ON-STATE RESISTANCE vs JUNCTION TEMPERATURE 100 T J − Junction Temperature ...

  • Page 11

    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 V, and decoupled with regards to board GND ...

  • Page 12

    TAS5112 SLES048C − JULY 2003 − REVISED MARCH 2004 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 ...

  • Page 13

    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. 3. After n/2 cycles, the protection latch is ...

  • Page 14

    TAS5112 SLES048C − JULY 2003 − REVISED MARCH 2004 Another parameter to be considered is the idle current loss in the inductor. This can be measured or specified as inductor dissipation (D). The target specification for dissipation is less than ...

  • Page 15

    It is assumed that the thermal grease is 0.002 inch thick and that it is similar in performance to Wakefield Type 126 thermal grease important that the thermal grease layer is ≤0.002 inches thick and ...

  • Page 16

    TAS5112 SLES048C − JULY 2003 − REVISED MARCH 2004 CLICK AND POP REDUCTION TI modulators feature a pop and click reduction system that controls the timing when switching starts and stops. Going from nonswitching to switching operation causes a spectral ...

  • Page 17

    ... PACKAGING INFORMATION (1) Orderable Device Status TAS5112DFD NRND TAS5112DFDG4 NRND TAS5112DFDR NRND TAS5112DFDRG4 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. ...

  • Page 18

    TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TAS5112DFDR HTSSOP DFD PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 56 2000 330.0 24.4 8.6 Pack Materials-Page 1 19-Mar-2008 ...

  • Page 19

    Device Package Type TAS5112DFDR HTSSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DFD 56 2000 Pack Materials-Page 2 19-Mar-2008 Width (mm) Height (mm) 346.0 346.0 41.0 ...

  • Page 20

    ...

  • Page 21

    ... 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’ ...