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TPA0202PWP Arkusz danych(PDF) 2 Page - Texas Instruments |
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TPA0202PWP Arkusz danych(HTML) 2 Page - Texas Instruments |
2 / 42 page TPA0202 2-W STEREO AUDIO POWER AMPLIFIER SLOS205A – FEBRUARY 1998 – REVISED MARCH 2000 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description The TPA0202 is a stereo audio power amplifier in a 24-pin TSSOP thermal package capable of delivering greater than 2 W of continuous RMS power per channel into 3- Ω loads. The TPA0202 simplifies design and frees up board space for other features. Full power distortion levels of less than 0.1% THD+N from a 5-V supply are typical. Low-voltage applications are also well served by the TPA0202 providing 800-mW per channel into 3- Ω loads with a 3.3-V supply voltage. The TPA0202 has integrated depop circuitry that virtually eliminates transients that cause noise in the speakers during power up and when using the mute and shutdown modes. Amplifier gain is externally configured by means of two resistors per input channel and does not require external compensation for settings of 2 to 20 in BTL mode (1 to 10 in SE mode). 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 (often headphone drive) outputs are required to be SE, the TPA0202 automatically switches into SE mode when the SE/BTL input is activated. Using the TPA0202 to drive line outputs up to 700 mW/channel into external 3- Ω loads is ideal for small non-powered external speakers in portable multimedia systems. The TPA0202 also features a shutdown function for power sensitive applications, holding the supply current at 5 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 readily realized in multilayer PCB applications. This allows the TPA0202 to operate at full power into 3- Ω loads at ambient temperature of up to 85 °C with 300 CFM of forced-air cooling. Into 8-Ω loads, the operating ambient temperature increases to 100°C. AVAILABLE OPTIONS PACKAGE TA TSSOP‡ (PWP) –40 °C to 85°C TPA0202PWP ‡ The PWP packages are available taped and reeled. To order a taped and reeled part, add the suffix R (e.g., TPA0202PWPR). † See Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report (Literature Number SLMA002) for more information on the PowerPAD package. |
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