发明名称 |
Bandgap voltage comparator used as a low voltage detection circuit |
摘要 |
<p>A bandgap voltage comparator requiring the summing of only two current sources is used to detect low voltage conditions for an logic on an integrated circuit that may be powered from a battery, fuel cell, solar cell and the like. Independent high and low voltage trip points may be programmed in the bandgap low voltage detection system. A power-on-reset delay may be used before asserting a voltage level ok status signal. Power may be disconnected from the bandgap voltage comparator low voltage detection system to conserve power, and power can be reapplied to quickly determine whether a desired voltage level is present. <IMAGE></p> |
申请公布号 |
EP1126352(A1) |
申请公布日期 |
2001.08.22 |
申请号 |
EP20010102678 |
申请日期 |
2001.02.07 |
申请人 |
MICROCHIP TECHNOLOGY INC. |
发明人 |
EAGAR, LAYTON;SMIT, WILLEM |
分类号 |
G01R19/165;G05F3/26;G05F3/30;G06F1/24;G06F1/28;H01L21/822;H01L27/04;H03K5/08;(IPC1-7):G05F3/30;H03K17/22 |
主分类号 |
G01R19/165 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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