IC AMP AUDIO PWR 100W D 36SSOP

TAS5121DKDR

Manufacturer Part NumberTAS5121DKDR
DescriptionIC AMP AUDIO PWR 100W D 36SSOP
ManufacturerTexas Instruments
SeriesPurePath Digital™
TypeClass D
TAS5121DKDR datasheet
 


Specifications of TAS5121DKDR

Output Type1-Channel (Mono)Max Output Power X Channels @ Load100W x 1 @ 4 Ohm
Voltage - Supply10.8 V ~ 13.2 VFeaturesDigital Inputs, Short-Circuit and Thermal Protection, Shutdown
Mounting TypeSurface MountPackage / Case36-SSOP
For Use WithTAS5508-5121K8EVM - EVAL MODULE FOR TAS5508B/TAS5121Lead Free Status / RoHS StatusLead free / RoHS Compliant
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DIGITAL AMPLIFIER POWER STAGE
FEATURES
D
100-W RMS Power (BTL) Into 4 Ω With Less
Than 10% THD+N
D
80-W RMS Power (BTL) Into 4 Ω With Less
Than 0.2% THD+N
D
0.05% THD+N at 1 W Into 4 Ω
D
Power Stage Efficiency Greater Than 90%
Into 4 Ω Load
D
Self-Protecting Design
D
36-Pin PSOP3 Package
D
3.3-V Digital Interface
D
EMI Compliant When Used With
Recommended System Design
TOTAL HARMONIC DISTORTION + NOISE
vs
POWER
10
R L = 4 Ω
T C = 75°C
Gain = 3 dB
1
0.1
0.01
0.1
1
10
P − 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.
SLES086A − NOVEMBER 2003 − REVISED MARCH 2004
APPLICATIONS
D
DVD Receiver
D
Home Theatre
D
Mini/Micro Component Systems
D
Internet Music Appliance
DESCRIPTION
The TAS5121 is a high-performance digital amplifier
power stage designed to drive a 4-Ω speaker up to 100 W.
The device incorporates PurePath Digital technology
and can be used with a TI audio PWM processor 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 TAS5121, safeguarding the
device and speakers against fault conditions that could
damage the system.
UNCLIPPED OUTPUT POWER
vs
H-BRIDGE VOLTAGE
90
80
70
60
50
40
30
20
10
0
100
0
4
8
12
16
PVDD_X − H-Bridge Voltage − V
Copyright  2004, Texas Instruments Incorporated
TAS5121
TM
4 Ω
6 Ω
8 Ω
20
24
28
32

TAS5121DKDR Summary of contents

  • Page 1

    ... P − 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

    ... GVDD_A T A PACKAGE 0°C to 70°C TAS5121DKD 0°C to 70°C TAS5121DKDR PACKAGE DISSIPATION RATINGS PACKAGE 36-Pin DKD PSOP3 (1) The TAS5121 package is thermally enhanced for conductive cooling using an exposed metal pad area impractical to use the devices with the pad exposed to ambient air as the only heat sinking of the device. For this reason, R θ ...

  • Page 3

    TERMINAL FUNCTION (1) FUNCTION (1) NAME DKD BST_A 22 P High-side bootstrap supply (BST), external resistor and capacitor to OUT_A required BST_B 33 P High-side bootstrap supply (BST), external resistor and capacitor to OUT_B required DGND ...

  • Page 4

    TAS5121 SLES086A − NOVEMBER 2003 − REVISED MARCH 2004 FUNCTIONAL BLOCK DIAGRAM DVDD DREG PWM_AP PWM Receiver DGND RESET DVDD DVDD DREG PWM_BP PWM Receiver DGND DREG OTW Protection SD Logic M1 OT and M2 UVP M3 4 GVDD_A OCH ...

  • Page 5

    RECOMMENDED OPERATING CONDITIONS Digital supply (1) DVDD Supply for internal gate drive and logic GVDD_x 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

    TAS5121 SLES086A − NOVEMBER 2003 − REVISED MARCH 2004 ELECTRICAL CHARACTERISTICS PVDD_X = 30.5 V, GVDD_x = 12 V, DVDD connected to DREG via a 100-Ω resistor Ω 384 kHz, TAS5026 PWM ...

  • Page 7

    TYPICAL APPLICATION AND CHARACTERIZATION CONFIGURATION USED WITH TAS5026 PWM PROCESSOR TAS5121DKD 1 GND 2 PWM_AP_1 PWM_BP 3 GND 4 RESET 5 DREG_RTN 6 GVDD 7 M3 100 8 nF DREG 9 DGND 1 µ 100 ...

  • Page 8

    TAS5121 SLES086A − NOVEMBER 2003 − REVISED MARCH 2004 TOTAL HARMONIC DISTORTION + NOISE vs POWER Ω 75°C Gain = 0.1 0.01 0 − Power − ...

  • Page 9

    EFFICIENCY vs TOTAL OUTPUT POWER 100 O(Total) − Total Output Power − W Figure 5 AMPLITUDE vs FREQUENCY 0 ...

  • Page 10

    TAS5121 SLES086A − NOVEMBER 2003 − REVISED MARCH 2004 THEORY OF OPERATION POWER SUPPLIES This power device requires only two power supply voltages, GVDD_x and PVDD_x. GVDD_x is the gate drive supply for the device, which is usually supplied from ...

  • Page 11

    A digitally controlled dead-time circuit controls the transitions between the high-side and low-side MOSFETs to ensure that both devices in each half-bridge are not conducting simultaneously. POWERING DOWN For power down of the TAS5121, an opposite approach is necessary. ...

  • Page 12

    TAS5121 SLES086A − NOVEMBER 2003 − REVISED MARCH 2004 Overtemperature (OT) Protection A dual temperature protection system asserts a warning signal when the device junction temperature exceeds 115°C and shuts down the device when the junction temperature exceeds 150°C. The ...

  • Page 13

    Table 3. Output Mode Selection M3 OUTPUT MODE 0 Bridge-tied load output stage (BTL) 1 Reserved APPLICATION INFORMATION DEMODULATION FILTER DESIGN The TAS5121 amplifier outputs are driven by high-current DMOS transistors in an H-bridge configuration. These transistors are either ...

  • Page 14

    TAS5121 SLES086A − NOVEMBER 2003 − REVISED MARCH 2004 system thermal resistance from junction to θJA ambient air. As such system parameter with roughly the following components (the thermal resistance from junction ...

  • Page 15

    ... TAS5121DKD ACTIVE TAS5121DKDE4 ACTIVE TAS5121DKDR ACTIVE TAS5121DKDRE4 ACTIVE (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 16

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TAS5121DKDR HSSOP DKD PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 36 500 330.0 24.4 14.7 Pack Materials-Page 1 10-Jul-2009 B0 (mm) K0 (mm Pin1 (mm) (mm) Quadrant 16 ...

  • Page 17

    ... Device Package Type TAS5121DKDR HSSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DKD 36 500 Pack Materials-Page 2 10-Jul-2009 Width (mm) Height (mm) 337.0 343.0 41.0 ...

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  • 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’ ...