Tpa3111d1pwp htssop-28 analog input class D audio amplifier price advantage

describe

Tpa3111d1 is a 10wd audio power amplifier used to drive bridge speakers. EMI suppression technology enables the use of cheap ferrite bead filter at the output to meet EMC requirements at the same time. Speaker guard ™ The speaker protection system includes an adjustable power limiter and a DC detection circuit. This adjustable power limiter allows the user to set the "virtual" voltage rail below the chip power supply to limit the amount of current through the speaker. The DC detection circuit measures the frequency and amplitude. If the following conditions occur, turn off the output stage. The input capacitor is damaged or there is a short circuit input.

Tpa3111d1 can reduce the volume of mono speaker to 4 Ω. The rate of tpa3111d1 is > 90%, and no external radiator is required under the following conditions: playing music. The output is fully protected against short circuit to power GND, VCC and output to output. Short circuit protection and thermal protection include automatic recovery function.

features

Convert 10-W to 8 - Ω and load from a at 10% thd + n

12 volt power supply

• convert 7-w to 4 - Ω from A8-V power supply with 10% thd + N load

• convert 94% of class D operating efficiency into 8 - Ω load, eliminating the need for radiators

• wide supply voltage range allows operation between 8 and 26 V

• no filter operation

•SpeakerGuard ™ Speaker protection includes

Adjustable power limiter plus DC protection

• straight through pin output helps simplify board layout

• reliable pin short circuit protection and

Thermal protection with automatic recovery option

• thd + n / Pop free performance

• four optional fixed gain settings

• differential input

application

• television

• monitor / laptop

• consumer audio devices
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