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TDA2004R 数据表(PDF) 11 Page - STMicroelectronics |
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TDA2004R 数据表(HTML) 11 Page - STMicroelectronics |
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11 / 17 page ![]() TDA2004R Electrical specifications Doc ID 17614 Rev 2 11/17 Figure 16. Total power dissipation and efficiency vs. output power (RL = 2 ) Figure 17. Total power dissipation and efficiency vs. output power (RL = 3.2 ) Figure 18. Maximum allowable power dissipa- tion vs. ambient temperature Ptot (W) 10 60 40 20 12 η (%) η 2 4 6 8 20 24 Po (W) 8 412 16 Vs = 14.4 V RL = 4 Ω f = 1 kHz Gv = 50 dB Ptot Ptot (W) 60 40 20 6 η (%) η 2 4 10 12 Po (W) 4 26 8 Vs = 13.2 V RL = 3.2 Ω f = 1 kHz Gv = 50 dB Ptot Ptot (W) 32 28 24 20 -50 50 100 Tamb (˚C) 0 16 12 8 4 0 R th = 8˚C/W R th = 4˚C/W R th = 2˚C/W |
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