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AN4043 bảng dữ liệu(PDF) 20 Page - STMicroelectronics

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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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AN4043 bảng dữ liệu(HTML) 20 Page - STMicroelectronics

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Electrical characteristics and functions
AN4043
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Doc ID 022726 Rev 2
Figure 12.
Timing chart of undervoltage lockout function
2.3.4
Dead time and interlocking function management
In order to prevent any possible cross-conduction between high-side and low-side IGBTs,
the SLLIMM-nano provides both the dead time and the interlocking function. The
interlocking function is a logic operation which sets both the outputs to low level when the
inputs are simultaneously active. The dead time function is a safety time introduced by the
device between the falling edge transition of one driver output and the rising edge of the
other output. If the rising edge set externally by the user occurs before the end of this dead
time, it is ignored and results as delayed until the end of the dead time.
The dead time is internally set at 320 ns as the typical value of the STGIPN3H60A.
Table 7.
Interlocking function truth table of the STGIPN3H60A
Condition
Logic input (VI)
Outputs
LIN
HIN
LVG
HVG
Interlocking
half bridge tri-state
HH
L
L
0 “logic state”
half bridge tri-state
LL
LL
1 “logic state”
low-side direct driving
HL
HL
1 “logic state”
high-side direct driving
LH
L
H



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