IC AMP AUDIO PWR 100W D 36SSOP

TAS5121IDKDR

Manufacturer Part NumberTAS5121IDKDR
DescriptionIC AMP AUDIO PWR 100W D 36SSOP
ManufacturerTexas Instruments
SeriesPurePath Digital™
TypeClass D
TAS5121IDKDR datasheet
 


Specifications of TAS5121IDKDR

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
100-W RMS Power (BTL) Into 4
Than 10% THD+N
80-W RMS Power (BTL) Into 4
Than 0.2% THD+N
0.09% THD+N at 1 W Into 4
Power Stage Efficiency Greater Than 90% Into
4-
Load
Self-Protecting Design
Industrial Temperature Rating
36-Pin PSOP3 Package
3.3-V Digital Interface
EMI Compliant When Used With
Recommended System Design
APPLICATIONS
DVD Receiver
Home Theatre
TOTAL HARMONIC DISTORTION + NOISE
vs
POWER
10
R
= 4
L
T
= 75 C
C
Gain = 3 dB
1
6
0.1
4
0.01
0.1
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, PowerPAD are trademarks of Texas Instruments.
All 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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Mini/Micro Component Systems
Internet Music Appliance
With Less
DESCRIPTION
With Less
The TAS5121I is a high-performance, digital-amplifier
power stage designed to drive a 4-
100 W. The TAS5121I is rated for operation at
industrial temperatures. The device incorporates
PurePath Digital™ technology and can be used with
a TI audio pulse-width modulation (PWM) processor
and a simple passive demodulation filter to deliver
high-quality,
cation.
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
TAS5121I, safeguarding the device and speakers
against fault conditions that could damage the sys-
tem.
90
80
70
60
50
40
30
20
10
8
0
0
10
100
G001
TAS5121I
SLES122 – SEPTEMBER 2004
TM
speaker up to
high-efficiency,
digital-audio
UNCLIPPED OUTPUT POWER
vs
H-BRIDGE VOLTAGE
4
6
8
4
8
12
16
20
24
28
PVDD_X − H-Bridge Voltage − V
Copyright © 2004, Texas Instruments Incorporated
amplifi-
32

TAS5121IDKDR Summary of contents

  • Page 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. PurePath Digital, PowerPAD are trademarks of Texas Instruments. All other trademarks are the property of their respective owners. ...

  • Page 2

    TAS5121I SLES122 – SEPTEMBER 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 gates. Terminal Assignment The ...

  • Page 3

    ... T A – – TAS5121IDKDR PACKAGE DISSIPATION RATINGS PACKAGE 36-Pin DKD PSOP3 (1) The TAS5121I 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. ...

  • Page 4

    TAS5121I SLES122 – SEPTEMBER 2004 DVDD DREG PWM_AP Receiver DGND RESET DVDD DVDD PWM_BP Receiver DGND OTW FUNCTIONAL BLOCK DIAGRAM GVDD_A DREG Gate Drive Timing PWM Control GVDD_A and Protection Gate Drive GVDD_B DREG Gate ...

  • Page 5

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

  • Page 6

    TAS5121I SLES122 – SEPTEMBER 2004 ELECTRICAL CHARACTERISTICS (continued) PVDD_X = 30.5 V, GVDD_x = 12 V, DVDD connected to DREG via a 100- PWM processor, unless otherwise noted SYMBOL PARAMETER STATIC DIGITAL INPUT SPECIFICATION, PWM, PROTECTION MODE SELECTION PINS, AND ...

  • Page 7

    TOTAL HARMONIC DISTORTION + NOISE vs POWER Gain = 0.1 4 0.01 0 − Power − W Figure 1. POWER LOSS vs ...

  • Page 8

    TAS5121I SLES122 – SEPTEMBER 2004 EFFICIENCY vs TOTAL OUTPUT POWER 100 − Total Output Power − W O(Total) Figure 5. AMPLITUDE vs FREQUENCY 0.5 ...

  • Page 9

    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 an external 12-V power supply. GVDD_x is also connected to an ...

  • Page 10

    TAS5121I SLES122 – SEPTEMBER 2004 THEORY OF OPERATION (continued) low-side MOSFET in the A half-bridge is not conducting. Because the source of the high-side MOSFET is referenced to the drain of the low-side MOSFET, a bootstrapped capacitor is used to ...

  • Page 11

    OVERTEMPERATURE WARNING PIN: OTW The OTW pin gives a temperature warning signal when temperature exceeds the set limit, as shown in Table 3. The pin is of the open-drain type with an internal pullup to DVDD. OTW 0 Junction ...

  • Page 12

    TAS5121I SLES122 – SEPTEMBER 2004 PROTECTION MODE LATCHED SHUTDOWN ON ALL ERRORS In latched shutdown mode, all error situations result in a permanent shutdown (output stage Hi-Z). Re-enabling can be done by toggling the RESET pin. MODE PINS SELECTION The ...

  • Page 13

    DEMODULATION FILTER DESIGN The TAS5121I amplifier outputs are driven by high-current DMOS transistors in an H-bridge configuration. These transistors are either off or fully on. The result is a square-wave output signal with a duty cycle that is proportional ...

  • Page 14

    TAS5121I SLES122 – SEPTEMBER 2004 APPLICATION INFORMATION (continued) The selection of the capacitors that are placed from the output of each inductor to ground is simple. To complete the output filter, use capacitor with a voltage rating ...

  • Page 15

    APPLICATION INFORMATION (continued) 36-pin PSOP3 0.47 C/W The thermal resistance of thermally conductive pads is generally higher than a thin thermal grease layer. Thermal tape has an even higher thermal resistance and should not be used with this package. ...

  • Page 16

    ... TAS5121IDKD ACTIVE TAS5121IDKDE4 ACTIVE TAS5121IDKDR ACTIVE TAS5121IDKDRE4 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 17

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TAS5121IDKDR 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 12-Jun-2009 B0 (mm) K0 (mm Pin1 (mm) (mm) Quadrant 16 ...

  • Page 18

    ... Device Package Type TAS5121IDKDR HSSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DKD 36 500 Pack Materials-Page 2 12-Jun-2009 Width (mm) Height (mm) 337.0 343.0 41.0 ...

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  • Page 22

    ... 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’ ...