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TC1272 Folha de dados(PDF) 5 Page - Microchip Technology |
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TC1272 Folha de dados(HTML) 5 Page - Microchip Technology |
5 / 12 page 2003 Microchip Technology Inc. DS21382B-page 5 TC1272/TC1273/TC1274 4.0 APPLICATIONS INFORMATION 4.1 Operation – Power Monitor The TC1272/TC1273/TC1274 is designed to function as a voltage monitor for +5V systems. These devices provide a RESET signal to indicate that the VCC has dropped below a preset voltage level that is selected by the suffix part number. In addition, the RESET is held active for approximately 200 ms after the power supply has risen above the voltage threshold level to allow time for the power supply to stabilize before system operation commences. FIGURE 4-1: Timing Diagram – Power Up (TC1272/TC1273). FIGURE 4-2: Timing Diagram – Power Down (TC1272/TC1273). FIGURE 4-3: Timing Diagram – Power Up (TC1274). FIGURE 4-4: Timing Diagram – Power Down (TC1274). VCCTP(MAX) VCCTP(MIN) tR VCCTP VCC RESET tRPU1 VOH VCC RESET VCCTP(MAX) VCCTP VCCTP(MIN) VOL tRPD1 tF tR tRPU2 VOL VCCTP VCC RESET VCCTP(MAX) VCCTP(MIN) tF tRPD2 VCC VCCTP(MAX) VOH RESET VCCTP VCCTP(MIN) RESET Slews With VCC |
Nº de peça semelhante - TC1272 |
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Descrição semelhante - TC1272 |
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