Patent ID: 9224566
Filing Date: 2015-12-29
Classification: G01R,H01H

Abstract:
1. A fuse driver circuit, comprising: a fuse; an NMOS transistor having a drain of the NMOS transistor coupled to a negative end of the fuse and a source of the NMOS transistor coupled to ground; a PMOS transistor having a drain of the PMOS transistor coupled continuously to a positive end of the fuse and a source of the PMOS transistor coupled to a power supply (Vdd); and a first diode having the positive end of the diode coupled to the source of the PMOS transistor and the negative end of the diode coupled to a well of the PMOS transistor, a second diode having a positive end coupled to ground and a negative end coupled to a gate of the PMOS transistor; wherein the NMOS transistor is configured to: wherein the gate of the PMOS transistor is configured to be set and remain at ground even when the power supply (Vdd) becomes less than ground.