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Secondary Side Switch-Mode Power Supply Control Slide 11

This slide shows the block diagram and specifications for the TSM1052 device that replaces the TSM1051, which is in its product termination notification phase. The TSM1052 is a drop-in replacement part. ST has extended the operating voltage range from 1.7 to 18 volts in the TSM1051 to 2.5 to 12 with the TSM1052, a major improvement. Another improvement was made in the IC supply current as it only requires 150 µA versus 1.1 mA in the previous part. In the case of the voltage reference, 1% precision is achieved, including the voltage input offset of the op-amp, which is the same as the previous device. Additionally, the Vsense is 200 mV at 2% precision.

PTM Published on: 2015-04-06