TSM101/A

The TSM101/A integrated circuit incorporates a high stability series band gap voltage reference,two ORed operational amplifiers and a current source.This IC compares the DC voltage and the current level at the output of a switching power supply to an internal reference. TSM101/A provides a feedback through an optocouplerto the PWMcontroller IC in the primary side.The controlled current generator can be used to modify the level of current limitation by offsetting the information coming from the current sensing resistor.

The absolute maximum ratings of TSM101/A:(1)DC supply voltage:36 V;(2)output current:20 mA;(3)power dissipation:200 mW;(4)input voltage:-0.3,VCC -1.5 V;(5)input current:±1 mA;(6)storage temperature:-40 to +125;(7)maximum junction temperature:150;(8)thermal resistante junction to ambiant:130 to 200/W.

The TSM101/A is one kind of voltage and current controller,it has some features such as:4.5 to 32V supply voltage range;so8,dip8 and tssop8 packages;built-in current generator with enable/disable function;two operational amplifiers with ored output and 1 MHz gain bandwidth product;1.24V series voltage reference with 10mA output current and 1% precision(TSM101A).