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STA381BWS 数据表(PDF) 21 Page - STMicroelectronics |
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STA381BWS 数据表(HTML) 21 Page - STMicroelectronics |
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21 / 171 page  STA381BWS Electrical specifications Doc ID 018937 Rev 6 21/171 3 Electrical specifications 3.1 Absolute maximum ratings Warning: Stresses beyond those listed in Table 3 above may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended operating conditions” are not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. In the real application, power supplies with nominal values rated within the recommended operating conditions may rise beyond the maximum operating conditions for a short time when no or very low current is sunk (amplifier in mute state). In this case the reliability of the device is guaranteed, provided that the absolute maximum ratings are not exceeded. 3.2 Thermal data Table 3. Absolute maximum ratings Symbol Parameter Min Typ Max Unit Vcc Power supply voltage (VCCxA, VCCxB) -0.3 27 V VDD_DIG Digital supply voltage -0.3 4 V VDD3V3 VDD3V3CHP Charge pump and analog path LDO supply -0.3 4 V Top Operating junction temperature 0 150 °C Tstg Storage temperature -40 150 °C RLine Load impedance - line driver mode 1 k Ω RHp Load impedance - headphone driver mode 16 Ω RBtl Load impedance - power output-BTL mode 5 Ω Table 4. Thermal data Symbol Parameter Min Typ Max Unit Rth j-case Thermal resistance junction-case (thermal pad) 1.5 °C/W Tth-sdj Thermal shutdown junction temperature 150 °C Tth-w Thermal warning temperature 130 °C Tth-sdh Thermal shutdown hysteresis 20 °C |
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