TSM111
DESCRIPTION
The TSM111 integrated circuit incorporates all sensing circuit to control a triple output power supply. It includes voltage references , paratorsand matched resistors bridge for overcurrent and overvoltage detection without the need of any external ponents.Timing generatorwith externalcapacitors, control turn On and Off delays. It provides an integrated and cost effective solution for simultaneous multiple voltage control. APPLICATIONS This circuit is designedto be used in SMPS for Desktop PC, to supervise currents and voltages of all outputs and generate power good information to the system while managing all timing during transitory operation. The IC also manages the standby mode of SMPS while the PC is in sleep mode.
May 1999
PIN CONNECTIONS (top view)
Vs33 Vs5 Vs12 ADJ Vcc P WM REM Tre m PG Tpor
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
Is33 Is5 Is12 Ts ur GND Fb MAIN Vref MAIN Vref AUX Fb AUX UV
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SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
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