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HTSSOP (PWP) 24 34 mm² 4.4 x 7.8
  • Compatible With PC 99 Desktop Line-Out Into 10-k Load
  • Compatible With PC 99 Portable Into 8- Load
  • Internal Gain Control, Which Eliminates External Gain-Setting Resistors
  • Digital Volume Control From 20 dB to –40 dB
  • 2.8-W/Ch Output Power Into 3- Load
  • PC-Beep Input
  • Depop Circuitry
  • Stereo Input MUX
  • Fully Differential Input
  • Low Supply Current and Shutdown Current
  • Surface-Mount Power Packaging 24-Pin TSSOP PowerPAD™

PowerPAD is a trademark of Texas Instruments.

  • Compatible With PC 99 Desktop Line-Out Into 10-k Load
  • Compatible With PC 99 Portable Into 8- Load
  • Internal Gain Control, Which Eliminates External Gain-Setting Resistors
  • Digital Volume Control From 20 dB to –40 dB
  • 2.8-W/Ch Output Power Into 3- Load
  • PC-Beep Input
  • Depop Circuitry
  • Stereo Input MUX
  • Fully Differential Input
  • Low Supply Current and Shutdown Current
  • Surface-Mount Power Packaging 24-Pin TSSOP PowerPAD™

PowerPAD is a trademark of Texas Instruments.

The TPA0162 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of delivering 2.8 W of continuous RMS power per channel into 3- loads.

This device minimizes the number of external components needed, which simplifies the design and frees up board space for other features. When driving 1 W into 8- speakers, the TPA0162 has less than 0.22% THD+N across its specified frequency range. The integrated depop circuitry virtually eliminates transients that cause noise in the speakers.

The overall gain of the amplifier is controlled digitally by the UP and DOWN terminals. At power up, the gain is set at the lowest level, –85 dB. It can then be adjusted to any of 31 discrete steps by pulling the voltage down at the desired pin to logic low. The gain is adjusted in the initial stage of the amplifier as opposed to the power output stage. As a result, the THD changes very little over all volume levels.

An internal input MUX allows two sets of stereo inputs to the amplifier. In notebook applications, where internal speakers are driven as BTL and the line outputs (often headphone drive) are required to be SE, the TPA0162 automatically switches into SE mode when the SE/BTL\ input is activated. This effectively reduces the gain by 6 dB.

The TPA0162 consumes only 20 mA of supply current during normal operation. A shutdown mode is included that reduces the supply current to less than 150 µA.

The PowerPAD package (PWP) delivers a level of thermal performance that was previously achievable only in TO-220-type packages. Thermal impedances of approximately 35°C/W are truly realized in multilayer PCB applications. This allows the TPA0162 to operate at full power into 8- loads at ambient temperatures of 85°C.

The TPA0162 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of delivering 2.8 W of continuous RMS power per channel into 3- loads.

This device minimizes the number of external components needed, which simplifies the design and frees up board space for other features. When driving 1 W into 8- speakers, the TPA0162 has less than 0.22% THD+N across its specified frequency range. The integrated depop circuitry virtually eliminates transients that cause noise in the speakers.

The overall gain of the amplifier is controlled digitally by the UP and DOWN terminals. At power up, the gain is set at the lowest level, –85 dB. It can then be adjusted to any of 31 discrete steps by pulling the voltage down at the desired pin to logic low. The gain is adjusted in the initial stage of the amplifier as opposed to the power output stage. As a result, the THD changes very little over all volume levels.

An internal input MUX allows two sets of stereo inputs to the amplifier. In notebook applications, where internal speakers are driven as BTL and the line outputs (often headphone drive) are required to be SE, the TPA0162 automatically switches into SE mode when the SE/BTL\ input is activated. This effectively reduces the gain by 6 dB.

The TPA0162 consumes only 20 mA of supply current during normal operation. A shutdown mode is included that reduces the supply current to less than 150 µA.

The PowerPAD package (PWP) delivers a level of thermal performance that was previously achievable only in TO-220-type packages. Thermal impedances of approximately 35°C/W are truly realized in multilayer PCB applications. This allows the TPA0162 to operate at full power into 8- loads at ambient temperatures of 85°C.

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Type Title Date
* Data sheet TPA0162: 2.8-W Stereo Audio Power Amplifier with Digital Volume Control datasheet (Rev. E) 29 Sep 2004
User guide TPA0162EVM - User Guide 23 Aug 1999

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