TDA2004A
Key Features
- THERMAL SHUT-DOWN The presence of a thermal limiting circuit offers the following advantages : 1) an overloadon the output(even if it is permanent), or an excessive ambient temperature can be easily withstood. 2) the heatsink can have a smaller factor of safety compared with that of a conventional circuit. There is no device damage in the case of excessive junction temperature ; all that happens is the PO (and therefore Ptot) and Id are reduced. The maximum allowable power dissipationdepends upon the size of the external heatsink(i.e. its thermal resistance) ; fig. 15 shown this dissipable power as a function of ambient temperature for different thermal resistance.
