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MIC4607 Folha de dados(PDF) 17 Page - Microchip Technology

Nome de Peças MIC4607
Descrição Electrónicos  85V, Three-Phase MOSFET Driver with Adaptive Dead-Time, Anti-Shoot-Through and Overcurrent Protection
PDF  42 Pages
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Fabricante Electrônico  MICROCHIP [Microchip Technology]
Página de início  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MIC4607 Folha de dados(HTML) 17 Page - Microchip Technology

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 2016 Microchip Technology Inc.
DS20005610A-page 17
MIC4607
4.2
Overlapping LI/HI Input Mode
(MIC4607-1)
When xLI/xHI input high signals overlap, xLO/xHO out-
put states are determined by the first output to be
turned on. That is, if xLI goes high (ON), while xHO is
high, xHO stays high until xHI goes low at which point,
after a delay of tHOOFF and when xHS < 2.2V, xLO goes
high with a delay of tLOON. Should xHS never trip the
aforementioned internal comparator reference (2.2V),
a falling xHI edge delayed by a typical 250 ns will set
“HS latch” allowing xLO to go high.
If xHS falls very fast, xLO will be held low by a 35 ns
delay gated by HI going low. Conversely, xHI going
high (ON) when xLO is high has no effect on outputs
until xLI is pulled low (off) and xLO falls to < 1.9V. Delay
from xLI going low to xLO falling is tLOOFF and delay
from xLO < 1.9V to xHO being on is tHOON.
FIGURE 4-2:
Separate Overlapping LI/HI Input Mode (MIC4607-1).
tLOOFF
tHOOFF
tLOON
tHOON
xHS
xHO
xLO
xHI
xLI
2.2V
(typ)
1.9V
(typ)
0V



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