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MAX233ACWP

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File Size : 116 KB Manufacturer:MAXIM Description:THERMAL CONSIDERATIONS Thermal shutdown protection circuitry protects the integrated circuit from thermal overload caused from a rise in junction temperature during excessive power dissipation conditions. This means of protection is intended for fault protection only and not as a means of current or power limiting during normal application usage. Proper thermal evaluation should be done to ensure that the junction temperature (TJ) does not exceed its maximum rating. Continuous operation at the maximum TJ of 150C can impact reliability. Due to variation in individual device electrical characteristics and thermal resistance, the built in thermal overload protection may be activated at power levels slightly above or below the rated dissipation. Also, peak output power should be considered for each individual output. Total power dissipation for the regulator can be calculated using the following equation: