Patent ID: 7227733
Filing Date: 2007-06-05
Classification: G06F,G11C,H02M

Abstract:
1. A method for providing a power supply controller circuit, comprising: selecting an adjustment circuit of an over temperature shutdown circuit of the power supply controller circuit through an external terminal of the power supply controller circuit, wherein the external terminal is selected from the group consisting of a power supply terminal, a control terminal and a function terminal of the power supply controller circuit, an over temperature shutdown temperature of the over temperature shutdown circuit to be adjusted from a second threshold temperature to a third temperature in response to the adjustment circuit being selected; deselecting through the external terminal the adjustment circuit, the over temperature shutdown temperature to be adjusted from the third threshold temperature to the second threshold temperature in response to the adjustment circuit being deselected; selecting through the external terminal a disable circuit of the power supply controller circuit; and applying a programming voltage to the external terminal after selecting the disable circuit to program a second programmable circuit connection of the disable circuit to disable permanently the adjustment circuit from adjusting the over temperature shutdown temperature.