M81721FP Mitsumi Electronics, Corp., M81721FP Datasheet - Page 6

• Manufacturer Part Number: M81721FP
• Description: 600v High Voltage Half Bridge Driver
• Manufacturer: Mitsumi Electronics, Corp.

Note1 : The minimum input pulse width at HIN/LIN should be to more than 500ns (because of HIN/LIN input noise filter circuit).
Note2 : If a high-high status of input signals (HIN/LIN) is ended with only one input signal entering low level and another still being in high level, the output will
Note3 : Delay times between input and output signals are not shown in the figure above.
3. SHORT CIRCUIT PROTECTION TIMING DIAGRAM
Note1 : Delay times between input and output signals are not shown in the figure above.
Note2 : The minimum FO_RST pulse width should be more than 500ns (because of FO_RST input filter circuit).
2. INPUT INTERLOCK TIMING DIAGRAM
When the input signals (HIN/LIN) are high level at the same time, the outputs (HOUT/LOUT) keep their previous status.
But if signals (HIN/LIN) are going to high level simultaneously, HIN signals will get active and cause HOUT to enter “H”
status.
When an over-current is detected by exceeding the threshold at the CIN and LIN is at high level at the same time, the
short circuit protection will get active and shutdown the outputs while FO will issue a low level (indicating a fault signal).
The fault output latch is reset by a high level signal at FO_RST pin and then FO will return to high level while the output
of the driver will respond to the following active input signal.
enter high-low status after the delay match time (not shown in the figure above).
HOUT
FO_RST
LOUT
HIN
LIN
HOUT
LOUT
HIN
CIN
LIN
FO
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600V HIGH VOLTAGE HALF BRIDGE DRIVER
MITSUBISHI SEMICONDUCTORS <HVIC>
M81721FP
Aug. 2009