PS21244-E Ver la hoja de datos (PDF) - MITSUBISHI ELECTRIC
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PS21244-E Datasheet PDF : 9 Pages
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MITSUBISHI SEMICONDUCTOR <Intelligent Power Module>
PS21244-E
TRANSFER-MOLD TYPE
INSULATED TYPE
Fig. 5 TIMING CHARTS OF THE DIP-IPM PROTECTIVE FUNCTIONS
[A] Short-Circuit Protection (N-side only)
(For the external shunt resistor and CR connection.)
a1. Normal operation : IGBT ON and carrying current.
a2. Short circuit current detection (SC trigger).
a3. Hard IGBT gate interrupt.
a4. IGBT turns OFF.
a5. FO timer operation starts : The pulse width of the FO signal is set by the external capacitor CFO.
a6. Input “H” : IGBT OFF state.
a7. Input “L” : IGBT ON state.
a8. IGBT OFF state.
N-side control input
Protection circuit state
Internal IGBT gate
Output current Ic(A)
Sense voltage of the
shunt resistor
Error output Fo
a6 a7
SET
RESET
a3
a2
SC
a1
a4
a8
SC reference voltage
CR circuit time constant DELAY
a5
[B] Under-Voltage Protection (N-side, UVD)
a1. Normal operation : IGBT ON and carrying current.
a2. Under voltage trip (UVDt).
a3. IGBT OFF in spite of control input condition.
a4. FO timer operation starts.
a5. Under voltage reset (UVDr).
a6. Normal operation : IGBT ON and carrying current.
Control input
Protection circuit state
Control supply voltage VD
UVDr
SET
RESET
UVDt a2
a5
a1
a3
a6
Output current Ic(A)
Error output Fo
a4
Sep. 2001
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