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TPA3111D1PWP Fiches technique(PDF) 1 Page - Texas Instruments |
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TPA3111D1PWP Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 31 page INP INN SD SD Fault Fault PLIMIT PLIMIT PVCC 8 to 26V 1uF OUTN FERRITE BEAD FILTER OUTP 10W 8Ω OUTN FERRITE BEAD FILTER FERRITE BEAD FILTER OUTP 10W 8Ω OUT+ - OUT Audio Source TPA3111D1 GAIN0 GAIN0 GAIN1 GAIN1 Copyright © 2016, Texas Instruments Incorporated Product Folder Sample & Buy Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPA3111D1 SLOS618F – AUGUST 2009 – REVISED JULY 2016 TPA3111D1 10-W Filter-Free Mono Class-D Audio Power Amplifier With Speaker Guard™ 1 1 Features 1 • 10-W into an 8- Ω Load at 10% THD+N From a 12-V Supply • 7-W into an 4- Ω Load at 10% THD+N From a 8-V Supply • 94% Efficient Class-D Operation into 8- Ω Load Eliminates Need for Heat Sinks • Wide Supply Voltage Range Allows Operation from 8 to 26 V • Filter-Free Operation • SpeakerGuard™ Speaker Protection Includes Adjustable Power Limiter Plus DC Protection • Flow-Through Pinout Facilitates Easy Board Layout • Robust Pin-to-Pin Short-Circuit Protection and Thermal Protection With Auto-Recovery Option • Excellent THD+N and Pop-Free Performance • Four Selectable, Fixed Gain Settings • Differential Inputs 2 Applications • Televisions • Monitors and Laptops • Consumer Audio Equipment 3 Description The TPA3111D1 device is a 10-W, efficient, Class-D audio power amplifier for driving a bridge tied speaker. Advanced EMI suppression technology enables the use of inexpensive ferrite bead filters at the outputs while meeting EMC requirements. SpeakerGuard speaker protection system includes an adjustable power limiter and a DC detection circuit. The adjustable power limiter lets the user to set a virtual voltage rail lower than the chip supply to limit the current through the speaker. The DC Detect circuit measures the frequency and amplitude of the PWM signal and shuts off the output stage if the input capacitors are damaged or shorts exist on the inputs. The TPA3111D1 can drive a mono speaker as low as 4 Ω. The high efficiency of the TPA3111D1, >90%, eliminates the requirement for an external heat sink when playing music. The outputs are fully protected against shorts to GND, VCC, and output-to-output. The short-circuit protection and thermal protection includes an auto- recovery feature. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TPA3111D1 HTSSOP (28) 4.40 mm × 9.70 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Application Diagram |
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