TLE7242-G 4 Channel Fixed Frequency Constant Current Control IC

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Infineon TLE7242-G 4 Channel Fixed Frequency Constant Current Control IC One Channel Fixed Constant Current Control, Bandgap, Bias, and R-String DAC Circuit Analysis 1891 Robertson Road, Suite 500, Ottawa, ON K2H 5B7 Canada Tel: 613.829.0414 Fax: 613.829.0515 www.chipworks.com

Some of the information in this report may be covered by patents, mask and/or copyright protection. This report should not be taken as an inducement to infringe on these rights. Chipworks Inc. 2012 all rights reserved. Chipworks and the Chipworks logo are registered trademarks of Chipworks Inc. This report is provided exclusively for the use of the purchasing organization. It can be freely copied and distributed within the purchasing organization, conditional upon the accompanying Chipworks accreditation remaining attached. Distribution of the entire report outside of the purchasing organization is strictly forbidden. The use of portions of the document for the support of the purchasing organization's corporate interest (e.g., licensing or marketing activities) is permitted, as defined by the fair use provisions of the copyright act. Accreditation to Chipworks must be attached to any portion of the reproduced information. CAR-1211-902 23795JMJC Revision 1.0 Published: November 19, 2012

Overview Introduction Brief Design Overview Component Descriptions Device Summary Figures To view, please click on the appropriate bookmark in the panel on the left. 0.1.1 Package Markings 0.1.2 Package X-Ray 0.1.3 Die Markings 0.1.4 Pin Configuration 0.2.1 Die Photograph Top Metal Layer 0.2.2 Annotated Die Photograph Top Metal Layer 0.2.3 Die Photograph Metal 1 Layer 0.2.4 Die Architecture Schematics 1.0.0 Top Level Diagram 7.5.1 Comparator 7.5.2 Comparator 2 2.0.0 Input Switch 7.5.3 Comparator 3 7.5.4 Latch Comparator 3.0.0 High Side Amplifier 7.6.0 Sample-and-Hold 3.1.0 5 Bit Trim DAC 7.6.1 Switch Cell 7.7.0 ADC Cells 4.0.0 Low Side Amplifier 7.7.1 ADC Cell 7.7.2 Latch 5.0.0 MUX 7.7.3 Dynamic Comparator 7.8.0 Switch Controller 1 6.0.0 Buffer 1 7.9.0 Switch Controller 1 7.0.0 9 Bit SAR A/D Converter 8.0.0 Pre-Driver 7.1.0 Buffer 7.2.0 Op-Amp 9.0.0 Diagnostics Circuit 7.3.0 Switch Controller 3 9.1.0 Programmable Resistors 2 7.4.0 Resistor Ladder 9.2.0 Comparator 7.5.0 Cascading Pre-Amplifiers

10.0.0 R-String DAC 10.1.0 AN_DAC1 10.2.0 DAC 2 10.3.0 DAC 3 10.4.0 DAC 4 11.0.0 Buffer 2 12.0.0 Channel Current Reference 13.0.0 Bandgap and Bias 13.1.0 AN_OPAMP1 13.2.0 Buffer 13.3.0 Comparator 13.4.0 Buffer 13.5.0 Current Sink 13.5.1 Buffer 13.6.0 Buffer 13.7.0 Bandgap Reference 13.7.1 Bandgap Amplifier 13.8.0 Buffer 13.9.0 Current Bias Generator 14.0.0 Trim Unit 14.1.0 Buffer Cell 15.0.0 Supply Pads Cell Library About Chipworks

About Chipworks Chipworks is the recognized leader in reverse engineering and patent infringement analysis of semiconductors and electronic systems. The company s ability to analyze the circuitry and physical composition of these systems makes them a key partner in the success of the world s largest semiconductor and microelectronics companies. Intellectual property groups and their legal counsel trust Chipworks for success in patent licensing and litigation earning hundreds of millions of dollars in patent licenses, and saving as much in royalty payments. Research & Development and Product Management rely on Chipworks for success in new product design and launch, saving hundreds of millions of dollars in design, and earning even more through superior product design and faster launches. Chipworks Inc. 2012 all rights reserved. Chipworks and the Chipworks logo are registered trademarks of Chipworks Inc. Contact Chipworks To find out more information on this report, or any other reports in our library, please contact Chipworks at 1-613-829-0414. Chipworks 1891 Robertson Road, Suite 500 Ottawa, Ontario K2H 5B7 Canada T 1-613-829-0414 F 1-613-829-0515 Web site: www.chipworks.com Email: info@chipworks.com Please send any feedback to feedback@chipworks.com