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AN2703 Datasheet(PDF) 2 Page - STMicroelectronics |
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AN2703 Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 9 page Parameters AN2703 2/9 1 Parameters Table 1. Absolute ratings parameters Parameter Name and description VDRM / VRRM VRM Repetitive peak off-state voltage (50-60 Hz) This is the maximum peak voltage allowed across the device. This parameter is specified up to the maximum junction temperature and the leakage currents, IDRM / IRRM are specified under this value. VDSM / VRSM Non repetitive peak off-state voltage This is the maximum peak voltage allowed under pulse conditions across the device. It is specify for pulse durations lower or equal to 10ms.This parameter guarantees the ruggedness of the TRIAC in case of fast line transients exceeding the specified VDRM / VRRM value. IT(RMS) On-state rms current This is the maximum rms current allowed in the device for a specified case temperature (Tc), or ambient temperature (Ta) or lead temperature (Tl), depending on the type of package. IT(AV) Average on-state current (SCR only) This is the maximum average current allowed in the SCR at a specified case temperature (Tc), or ambient temperature (Tamb) or lead temperature (Tl), depending on the type of package ITRM Repetitive peak on-state current This is the maximum allowable repetitive peak current for a specified pulse duration at a specified case, ambient or lead temperature and frequency. ITSM Non repetitive surge peak on-state current This is the maximum peak current allowed in the device under pulse conditions. For TRIACs, it is defined for a single full cycle sine wave of 20 ms corresponding to the 50 Hz mains, and 16.6 ms for the 60 Hz mains. If the absolute rating is exceeded, the component may be damaged dI/dt Critical repetitive rate of rise of on-state current During turn-on, the maximum rate of rise of current should not exceed this maximum value. Above this limit, the SCR or TRIAC may be damaged I²t Value for fuse definition To protect the device, the I²t rating of the fuse used in series with it must be lower than this specified value. This parameter is linked to the ITSM parameter as described below: with tp the duration of full-cycle sinewave. Tstg, Tj Storage and operating junction temperatures The storage temperature range is the range in which the device can be stored (shipping, handling, storage...), without working. The operating junction temperature range is the range at which the junction can work without damage. tp 2 I i²t 2 TSM ´ = |
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