AN2042

Non dimmable version

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Non dimmable version

A lower cost solution is introduced as shown in Figure 33, if the dimming function is not

required. In this case the TSM104 used for the dimming control is replaced by the simpler

TSM1011 and the brown-out circuit is not necessary anymore during the switch off of the

circuit. No other changes need to be introduced neither the transformer specifications nor

the voltage and current thresholds have to be changed.

The dimming control section is eliminated and the TSM104 is replaced by the simplest

TSM1011. Moreover, the brownout circuit is not necessary during the switch off. The same

rules to design to define the transformer specifications and voltage and current thresholds

are still valid.

Figure 33.

Non dimmable solution