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AN2738 датащи(PDF) 9 Page - STMicroelectronics

номер детали AN2738
подробное описание детали  L6390 half-bridge gate driver
PDF  54 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2738 датащи(HTML) 9 Page - STMicroelectronics

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AN2738
Dead time and interlocking function management
Doc ID 14589 Rev 2
9/54
Figure 4.
Timing waveforms
Figure 5.
Typical dead time vs. DT resistor value
LIN
HIN
LVG
HVG
LIN
HIN
LVG
HVG
LIN
HIN
LVG
HVG
LIN
HIN
LVG
HVG
DT
DT
DT
DT
gate driver outputs OFF
(HALF-BRIDGE TRI-STATE)
CONTROL SIGNAL EDGES
OVERLAPPED:
INTERLOCKING + DEAD TIME
CONTROL SIGNALS EDGES
SYNCHRONOUS (*):
DEAD TIME
CONTROL SIGNALS EDGES
NOT OVERLAPPED,
BUT INSIDE THE DEAD TIME:
DEAD TIME
CONTROL SIGNALS EDGES
NOT OVERLAPPED,
OUTSIDE THE DEAD TIME:
DIRECT DRIVING
(*) HIN and LIN can be connected togheter and driven by just one control signal
DT
gate driver outputs OFF
(HALF-BRIDGE TRI-STATE)
DT
gate driver outputs OFF
(HALF-BRIDGE TRI-STATE)
gate driver outputs OFF
(HALF-BRIDGE TRI-STATE)
DT
gate driver outputs OFF
(HALF-BRIDGE TRI-STATE)
gate driver outputs OFF
(HALF-BRIDGE TRI-STATE)
DT
gate driver outputs OFF
(HALF-BRIDGE TRI-STATE)
gate driver outputs OFF
(HALF-BRIDGE TRI-STATE)
0
0.5
1
1.5
2
2.5
3
3.5
0
50
100
150
200
250
300
Rdt (kOhm)



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