Semiconductor integrated circuit controlling output...

Details Semiconductor integrated circuit controlling output... Semiconductor integrated circuit controlling output...

2007-02-13

2007-02-13

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S112000, C326S030000, C326S082000, C326S083000

Reexamination Certificate

active

10829380

ABSTRACT:
The present invention provides a semiconductor integrated circuit that can perform impedance control and slew rate control independently of each other and simplify the structure of a control circuit. An output circuit comprising plural output MOSFETs connected in parallel is used, from among the plural output MOSFETs, the number of output MOSFETS to be turned on is selected by a first control means to control output impedance, and slew rate is controlled by a second control means controlling a drive signal of the output MOSFETs to be turned on.

REFERENCES:
patent: 6087847 (2000-07-01), Mooney et al.
patent: 6366867 (2002-04-01), Sine et al.
patent: 6538464 (2003-03-01), Muljono et al.
patent: 6744287 (2004-06-01), Mooney et al.
patent: 2003/0128047 (2003-07-01), Humphrey
patent: 10-242835 (1998-09-01), None
patent: 2002-135102 (2002-05-01), None
patent: 2001-156618 (2002-06-01), None

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