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HCPL-M454 Folha de dados(PDF) 11 Page - Agilent(Hewlett-Packard) |
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HCPL-M454 Folha de dados(HTML) 11 Page - Agilent(Hewlett-Packard) |
11 / 12 page 11 propagation delays and sets the limit on how good the worst-case dead time can be for a given design. Therefore, optocouplers with tight propagation delay specifications (and not just shorter delays or lower pulse- width distortion) can achieve short dead times in power inverters.TheHCPL-M454 specifies a minimum (tPLH - tPHL) of -0.7 µs over an operating temeprature range of 0-70 °C, resulting in a maximum dead time of 2.0 µs when the LED turn-on delay is equal to (tPLH - tPHL)max, or 1.3 µs. It is important to maintain accurate LED turn-on delays because delays shorter than (tPLH - tPHL)max may allow shoot- through currents, while longer delays will increase the worst-case dead time. |
Nº de peça semelhante - HCPL-M454 |
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Descrição semelhante - HCPL-M454 |
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