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TC78H610FNG Folha de dados(PDF) 10 Page - Toshiba Semiconductor |
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TC78H610FNG Folha de dados(HTML) 10 Page - Toshiba Semiconductor |
10 / 16 page TC78H610FNG 2014-3-24 10 TSD (Thermal shut down) When the junction temperature (Tj) exceeds 170°C (typ.), all outputs are turned off. In the operating state of TSD, IC becomes stop mode (It is the same as the state of IN1A/IN1B=IN2A/IN2B=L conditions). When the junction temperature (Tj) falls by 40°C(typ.) or more, it returns to the normal mode. * The operative temperature and release temperature of the TSD are a reference value, and are not a guaranteed performance. ISD (Over current detection) When any of current which flows in output transistors exceeds 1.7A (typ.), all outputs are turned off. In the operating state of ISD, IC becomes stop mode (It is the same as the state of IN1A/IN1B=IN2A/IN2B=L conditions). However, masking time of 4μs (typ.) should be added in order to avoid detection error by the noise. By reboot or “L” input to a /STBY pin, it returns to normal operation. * The actuating current and masking term of the ISD are a reference value, and are not a guaranteed value. UVLO (Under voltage lockout) When VCC falls to less than 2.2V (typ.), all outputs are turned off. In the operating state of UVLO, IC becomes stop mode (It is the same as the state of IN1A/IN1B=IN2A/IN2B=L conditions). By raising VCC more than 2.3V (typ.), it returns to the normal mode. When VM falls to less than 2.0V (typ.), all outputs are turned off. In the operating state of UVLO, IC becomes stop mode (It is the same as the state of IN1A/IN1B=IN2A/IN2B=L conditions). By raising VM more than 2.1V (typ.), it returns to the normal mode. * The operating voltage and release voltage of the UVLO are a reference value, and are not a guaranteed value. Output current 1.7A (typ.) masking time 4μs(typ.) Output OFF |
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