Datasheet

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FEATURES

APPLICATIONS

DESCRIPTION

0 3010 20

PVDD – SupplyVoltage – V

P – OutputPower – W

SE,4 Sub

THD=10%

TAS5176

SLES196 – JUNE 2007

6-Channel, 100-W, Digital-Amplifier Power Stage

Furthermore, the TAS5176 can drive three-channels

in BTL mode, with the same high-performance but

• Total Output Power at 10% THD+N

with a higher power level. In BTL mode, the

– 5 × 15 W at 8 Ω + 1 × 25 W at 4 Ω

TAS5176 is capable of driving 8- Ω loads to greater

(Single-Ended)

than 30 Watts at 10% THD+N performance.

– 2 x 30 W at 8 Ω (BTL)

A low-cost, high-fidelity audio system can be built

– 1 x 40 W at 6 Ω (BTL)

using a TI chipset comprising a modulator (e.g.,

TAS5086) and the TAS5176. This device does not

• 105-dB SNR (A-Weighted), with TAS5086

require power-up sequencing because of the internal

Modulator

power-on reset.

• < 0.05% THD+N at 1 W

The TAS5176 requires only simple passive

• Power Stage Efficiency > 90% Into

demodulation filters on its outputs to deliver

Recommended Loads (SE)

high-quality, high-efficiency audio amplification. The

• Integrated Self-Protection Circuits

efficiency of the TAS5176 is greater than 90% when

driving 8- Ω satellites and a 4- Ω subwoofer speaker.

– Undervoltage

– Overtemperature

The TAS5176 has an innovative protection system

integrated on-chip, safeguarding the device against a

– Overload

wide range of fault conditions that could damage the

– Short Circuit

system. These safeguards are short-circuit

• Integrated Active-Bias Control to Avoid DC

protection, overload protection, undervoltage

Pop

protection, and overtemperature protection. The

TAS5176 has a new proprietary current-limiting

• Footprint Compatible with the TAS5186A for

circuit that reduces the possibility of device shutdown

Scaleable Designs

during high-level music transients. A new

• Thermally Enhanced 44-pin HTSSOP Package

programmable overcurrent detector allows the use of

with PowerPad located on the bottom of the

lower-cost inductors in the demodulation output filter.

device

OUTPUT POWER

• EMI-Compliant When Used With

Recommended System Design

SUPPLY VOLTAGE

• DVD Receiver

• Home Theater in a Box

• Televisions

The TAS5176 is a high-performance, six-channel,

digital-amplifier power stage with an improved

protection system. The TAS5176 is capable of

driving a 8- Ω , single-ended load up to 15 W per each

front/satellite channel and a 4- Ω , single-ended

subwoofer greater than 25 W at 10% THD+N

performance.

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.

PowerPAD, PurePath Digital 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.

Summary of content (25 pages)

PAGE 1
TM TAS5176 www.ti.com SLES196 – JUNE 2007 6-Channel, 100-W, Digital-Amplifier Power Stage FEATURES • • • • • • • • • Total Output Power at 10% THD+N – 5 × 15 W at 8 Ω + 1 × 25 W at 4 Ω (Single-Ended) – 2 x 30 W at 8 Ω (BTL) – 1 x 40 W at 6 Ω (BTL) 105-dB SNR (A-Weighted), with TAS5086 Modulator < 0.
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TAS5176 www.ti.com SLES196 – JUNE 2007 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. DEVICE INFORMATION TERMINAL ASSIGNMENT The TAS5176 is available in a thermally enhanced 44-pin HTSSOP PowerPAD™ package.
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TAS5176 www.ti.com SLES196 – JUNE 2007 DEVICE INFORMATION (continued) TERMINAL FUNCTIONS TERMINAL NAME NO.
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TAS5176 www.ti.com SLES196 – JUNE 2007 Table 1. MODE Selection Pins MODE PINS (1) MODE M2 M3 0 0 2.1 mode Channels A, B, and C enabled; channels D, E, and F disabled 0 1 5.1 mode All channels enabled 1 0 3.0 mode BTL Mode 1 1 Reserved (1) NAME DESCRIPTION M1 must always be connected to ground. 0 indicates a pin connected to GND; 1 indicates a pin connected to VREG. PACKAGE HEAT DISSIPATION RATINGS (1) (1) (2) PARAMETER TAS5176DDW RθJC (°C/W)—1 satellite (sat.) FET only 10.
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TAS5176 www.ti.com SLES196 – JUNE 2007 TYPICAL SYSTEM DIAGRAM (Single-ended Mode) BST_BIAS OUT_BIAS 3 12 V 21 22 PVDD PVDD_F GVDD_ABC BST_F 1 mF 10 mF + 4 OUT_F PGND_EF 0.1 mF 14 PGND_EF VREG PVDD_E OC_ADJ BST_E 15 kΩ 12 10 9 11 OUT_E PWM2 PWM3 PurePath Digital ? Modulator TAS5086 PWM4 PWM5 PWM6 5 6 17 18 19 VALID2 VALID1 8 33 nF 16 SAT 330 Ω 270 mF 1 mF 1 39 270 mF 22 mH 41 0.1 mF + 38 0.47 mF 40 33 nF SAT 270 mF 330 Ω 22 mH 1 mF M2 GND PVDD_D TAS5176 BST_D 36 0.
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TAS5176 www.ti.com SLES196 – JUNE 2007 TYPICAL SYSTEM DIAGRAM (BTL Mode) BST_BIAS OUT_BIAS 3 12 V PVDD_F GVDD_DEF 1 mF BST_F 20 GVDD_ABC OUT_F 1 mF 10 mF PGND_EF + 4 VDD 0.1 mF PGND_EF 21 22 33 nF PVDD 43 44 42 1.0 mF 0.1 mF 16.0 mH 33 nF 41 + 470 mF 1 0.47 mF 14 TBD kΩ 12 PVDD_E OC_ADJ BST_E AGND OUT_E 13 0.1 mF 8 10 9 11 PVDD_D VREG BST_D M3 OUT_D 39 38 40 1.0 mF 0.1 mF 16.0 mH 33 nF 36 37 35 1.0 mF 0.1 mF 16.
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TAS5176 www.ti.
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TAS5176 www.ti.com SLES196 – JUNE 2007 RECOMMENDED OPERATING CONDITIONS MIN TYP MAX UNIT PVDD_X Half-bridge supply, SE DC supply voltage at pin(s) 0 31 34 V GVDD Gate drive and guard ring supply voltage DC voltage at pin(s) 10.8 12 13.2 V VDD Digital regulator supply DC supply voltage at pin 10.8 12 13.
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TAS5176 www.ti.com SLES196 – JUNE 2007 AUDIO SPECIFICATION (BTL Operation) PVDD_X = 24 V, GVDD = 12 V, audio frequency = 1 kHz, AES17 measurement filter, FPWM = 384 kHz, case temperature = 75°C. Audio performance is recorded as a chipset, using TAS5086 PWM processor with an effective modulation index limit of 97%. All performance is in accordance with the foregoing specifications and recommended operating conditions unless otherwise specified.
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TAS5176 www.ti.com SLES196 – JUNE 2007 ELECTRICAL CHARACTERISTICS FPWM = 384 kHz, PVDD = 31V, GVDD = 12 V, VDD = 12 V, TC (case temperature) = 25°C, unless otherwise noted. All performance is in accordance with recommended operating conditions, unless otherwise specified.
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TAS5176 www.ti.com SLES196 – JUNE 2007 TYPICAL CHARACTERISTICS, 5.1 MODE TOTAL HARMONIC DISTORTION + NOISE vs OUTPUT POWER 20 SE, 8 W PVDD = 31 V 10 5 2 1 0.5 0.2 0.1 0.05 0.02 0.007 20m 100m 500m 1 2 5 10 THD+N – Total Harmonic Distortion + Noise – % THD+N – Total Harmonic Distortion + Noise – % TOTAL HARMONIC DISTORTION + NOISE vs OUTPUT POWER 20 4W 10 SE, PVDD = 31 V 5 2 1 0.5 0.2 0.1 0.05 0.02 0.01 0.004 20m PO – Output Power – W 500m 1 2 5 10 30 PO – Output Power – W Figure 1.
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TAS5176 www.ti.com SLES196 – JUNE 2007 OUTPUT POWER vs SUPPLY VOLTAGE OUTPUT POWER vs SUPPLY VOLTAGE 27.5 14 SE, 0 dB 4 W Sub 25 22.5 PO – Output Power – W PO – Output Power – W 12 SE, 0 dB 8 W Sat 10 8 6 4 20 17.5 15 12.5 10 7.5 5 2 2.5 0 0 0 0 10 20 30 PVDD – Supply Voltage – V Figure 5. Figure 6.
PAGE 13
TAS5176 www.ti.com SLES196 – JUNE 2007 OUTPUT POWER vs CASE TEMPERATURE OUTPUT POWER vs CASE TEMPERATURE 18 PO – Output Power – W 16 14 12 10 8 6 PVDD = 31 V SE, 8 W Sat 4 30 25 20 15 10 5 2 0 0 25 50 75 25 100 50 75 100 TC – Case Temperature – °C TC – Case Temperature – °C Figure 9. Figure 10. NOISE AMPLITUDE vs FREQUENCY +0 -20 Noise Amplitude – dB PO – Output Power – W PVDD = 31 V SE, 4 W Sub 35 -40 -60 -80 -100 -120 -140 0 5k 10k 15k 20k f – Frequency – kHz Figure 11.
PAGE 14
TAS5176 www.ti.com SLES196 – JUNE 2007 TYPICAL CHARACTERISTICS, 3.0 BTL MODE OUTPUT POWER vs SUPPLY VOLTAGE 20 10 5 45 BTL Mode PVDD = 24 V TC = 75°C 40 PO – Output Power – W THD+N – Total Harmonic Distortion + Noise - % TOTAL HARMONIC DISTORTION + NOISE vs OUTPUT POWER 2 1 0.5 8W 0.2 0.1 0.05 6W 35 30 20 100m 1 2 10 0 0 5 10 20 50 Figure 13.
PAGE 15
TAS5176 www.ti.com SLES196 – JUNE 2007 SYSTEM POWER LOSS vs TOTAL OUTPUT POWER OUTPUT POWER vs CASE TEMPERATURE 45 14 6W 40 PO – Output Power – W 10 8 6 BTL 2.1 Mode 2 Channels = 8 W 1 Channel = 6 W PVDD = 23 V TC = 25°C 4 2 0 0 35 30 8W 25 20 15 10 BTL Mode 1 Channel THD+N = 10% 5 0 25 50 75 50 100 100 TC – Case Temperature – °C PO – Output Power – W Figure 16. Figure 17.
PAGE 16
TAS5176 www.ti.com SLES196 – JUNE 2007 THEORY OF OPERATION POWER SUPPLIES To facilitate system design, the TAS5176 needs only a 12-V supply in addition to a typical 31-V power-stage supply. An internal voltage regulator provides suitable voltage levels for the digital and low-voltage analog circuitry. Additionally, all circuitry requiring a floating voltage supply, e.g., the high-side gate drive, is accommodated by built-in bootstrap circuitry requiring only a few external capacitors.
PAGE 17
TAS5176 www.ti.com SLES196 – JUNE 2007 Any fault resulting in device shutdown is signaled by the SD pin going low. Likewise, OTW goes low when the device junction temperature exceeds 125°C (see the following table). SD OTW 0 0 Overtemperature (OTE) or overload (OLP) or undervoltage (UVP) DESCRIPTION 0 1 Overload (OLP) or undervoltage (UVP) 1 0 Overtemperature warning. Junction temperature higher than 125°C, typical 1 1 Normal operation.
PAGE 18
TAS5176 www.ti.com SLES196 – JUNE 2007 OVERTEMPERATURE PROTECTION The TAS5176 has a two-level temperature-protection system that asserts an active-low warning signal (OTW) when the device junction temperature exceeds 125°C (typical), and If the device junction temperature exceeds 155°C (typical), the device is put into thermal shutdown, resulting in all half-bridge outputs being set in the high-impedance state (Hi-Z) and SD being asserted low.
PAGE 19
TAS5176 www.ti.com SLES196 – JUNE 2007 Table 4. 3.0 Mode—Output Channels In BTL Mode M3 RESET OUT_BIAS OUT_A, OUT_D, _B, _C _E, _F 0 0 Hi-Z Hi-Z Hi-Z COMMENT All outputs disabled, nothing is switching.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 21
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device TAS5176DDWR Package Package Pins Type Drawing SPQ HTSSOP 2000 DDW 44 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 330.0 24.4 Pack Materials-Page 1 8.6 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 15.6 1.8 12.0 24.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TAS5176DDWR HTSSOP DDW 44 2000 367.0 367.0 45.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.