IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Soft pre-charge H/V switch for charge pump with NAND flash memory using external power
Youngil KimSangsun Lee
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JOURNAL FREE ACCESS

2013 Volume 10 Issue 17 Pages 20130497

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Abstract

This letter describes a soft pre-charge high voltage switch for a program/erase charge pump (P/E Pump) with NAND flash memory using an external high voltage of 12V. The use of a external high voltage reduces the P/E Pump stage and improves the power efficiency. The external high voltage is used as input power of the P/E Pump. The soft pre-charge high voltage switch is proposed to transfer the external high voltage without a breakdown issue. The proposed high voltage switch passes the external high voltage of +12V to be ramped up linearly at the start-up phase.

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© 2013 by The Institute of Electronics, Information and Communication Engineers
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