TRIACs – The Dirty Details (2/3): Other Parameters, Limits and Thermal

A (mostly) theoretical discussion about how to (not) destroy a TRIAC …
↓↓↓ Complete description, time index and links below ↓↓↓

This is not an introductory video to TRIACS. It delves deep into the detailed information you’ll find in a TRIAC’s datasheet. This second part covers some parameters not covered in the first, limiting values and thermal characteristics.

Unlike the first part the discussion is more of a theoretical nature. Either I couldn’t, wouldn’t or wanted to destroy my TRIAC to demonstrate its limits. The third and last part will be more hands-on again.

00:00 Intro – failed experiments in high voltage spikes
02:37 dV(D)/dt – rate of rise of off-state voltage
06:03 V(T), I(D) – on-state voltage and off-state current
14:59 Limiting values – how not to destroy a TRIAC
15:40 V(DRM) – repetitive peak off-state voltage
16:23 I(T) (RMS) – RMS on-state current
23:47 I(TSM) – non-repetitive peak on-state current
31:15 dI(T)/dt – rate of rise of on-state-current
32:55 I^2t – selecting the right fuse
34:24 I(GM), P(GM) – peak gate current/power
39:28 P(G(AV)) – average gate power
40:28 T(stg) – storage temperature
40:38 T(j) – junction temperature
41:07 Thermal characteristics – how to keep a TRIAC cool
41:19 R(th(j-mb)), R(th(j-a)) – thermal resistances
47:73 Wrap-up – part three will be more hands-on again

TRIACs – The Dirty Details (1/3): Gating, Latching and Holding:    • TRIACs – The Dirty Details (1/3): Gat...  
TRIACs – The Dirty Details (3/3): Practical Considerations:    • TRIACs – The Dirty Details (3/3): Pra...  
Tutorials:    • Tutorials  

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