Browse Prior Art Database

Overtemp/Short Circuit Protected EEPROM Socket

IP.com Disclosure Number: IPCOM000236302D
Publication Date: 2014-Apr-17
Document File: 1 page(s) / 27K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a system that allows a thermal sensor coupled to the body of the Electrically Erasable Programmable Read Only Memory (EEPROM) socket to 'open' the EEPROM circuit when an excess of heat is detected, thus reducing damage to the chip and danger to a user.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 98% of the total text.

Page 01 of 1

Overtemp/Short Circuit Protected EEPROM Socket

Certain chips in servers are removable and re-programmable. The problem is that these chips are not keyed and incorrect insertion can lead to an over current situation. This causes the chip to heat because the input and ground pins are reversed. Currently the system can continue to operate in this situation so a user may not notice the chip is unreasonably heated. This can cause the chip to be permanently damaged or, if a user has to replace the chip, it may be unacceptably hot for human touch.

When the device is inserted backward, the Vcc and ground (GND) pins become reversed.

Typical 8 -pin EEPROM IC pinout: 1: AD0 8: Vcc
2: AD1 7: WP_N
3: AD2 6: SCL
4: GND 5: SDA

The novel contribution is a system that allows a thermal sensor coupled to the body of the Electrically Erasable Programmable Read Only Memory (EEPROM) socket to 'open' the EEPROM circuit when an excess of heat is detected.

The system works by placing a resettable thermal fuse device on both the power and ground pins of the socket, between the Integrated Circuit's (IC's) pin and the Printed Circuit Board's (PCB's) pad. If the IC is inserted correctly, then the current through the socket remains within specification and the device functions as intended. If the IC is inserted backward, then the increased current flow and temperature through the device causes the fuse to open, preventing damage to the IC and stopping the overheating of the part that may cause...