參數資料
型號: IRS23364DJTRPBF
廠商: International Rectifier
英文描述: HIGH VOLTAGE 3 PHASE GATE DRIVER IC
中文描述: 3相高壓柵極驅動器集成電路
文件頁數: 27/45頁
文件大?。?/td> 952K
代理商: IRS23364DJTRPBF
IRS2336xD Family
www.irf.com
2007 International Rectifier
27
approximately the same duration as the input signal. The lower pair of waveforms (Example 2) show an input signal
with a duration slightly longer then t
FIL,IN
; the resulting output is approximately the same duration as the input signal.
Figure 17: Typical input filter
Figure 18: Advanced input filter
Short-Pulse / Noise Rejection
This device’s input filter provides protection against short-pulses (e.g., noise) on the input lines. If the duration of the
input signal is less than t
FIL,IN
, the output will not change states. Example 1 of Figure 19 shows the input and output
in the low state with positive noise spikes of durations less than t
FIL,IN
; the output does not change states. Example 2
of Figure 19 shows the input and output in the high state with negative noise spikes of durations less than t
FIL,IN
; the
output does not change states.
E
E
Figure 19: Noise rejecting input filters
Figures 20 and 21 present lab data that illustrates the characteristics of the input filters while receiving ON and OFF
pulses.
The input filter characteristic is shown in Figure 20; the left side illustrates the narrow pulse ON (short positive pulse)
characteristic while the left shows the narrow pulse OFF (short negative pulse) characteristic. The x-axis of Figure
20 shows the duration of PW
IN
, while the y-axis shows the resulting PW
OUT
duration. It can be seen that for a PW
IN
duration less than t
FIL,IN
, that the resulting PW
OUT
duration is zero (e.g., the filter rejects the input signal/noise). We
also see that once the PW
IN
duration exceed t
FIL,IN
, that the PW
OUT
durations mimic the PW
IN
durations very well over
this interval with the symmetry improving as the duration increases. To ensure proper operation of the HVIC, it is
suggested that the input pulse width for the high-side inputs be
500 ns.
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