PS21562-P Datasheet, PDF (7/9 Pages) Mitsubishi Electric Semiconductor – AC100V~200V inverter drive for small power motor control.

MITSUBISHI SEMICONDUCTOR <Dual-In-Line Package Intelligent Power Module>
PS21562-P
TRANSFER-MOLD TYPE
INSULATED TYPE
Fig. 5 TIMING CHART OF THE DIP-IPM PROTECTIVE FUNCTIONS
[A] Short-Circuit Protection (Lower-arms only with the external shunt resistor and CR filter)
a1. Normal operation : IGBT ON and carrying current.
a2. Short circuit current detection (SC trigger).
a3. IGBT gate hard interruption.
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 “L” : IGBT OFF.
a7. Input “H” : IGBT ON.
a8. IGBT OFF in spite of input “H”.
Lower-arms control
input
Protection circuit state
Internal IGBT gate
Output current Ic
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 (Lower-arm, UVD)
b1. Control supply voltage rises : After the voltage level reaches UVDr, the circuits start to operate when next input is applied.
b2. Normal operation : IGBT ON and carrying current.
b3. Under voltage trip (UVDt).
b4. IGBT OFF in spite of control input condition.
b5. FO operation starts.
b6. Under voltage reset (UVDr).
b7. Normal operation : IGBT ON and carrying current.
Control input
Protection circuit state
RESET
SET
UVDr
Control supply voltage VD
b1
UVDt
b3
RESET
b6
Output current Ic
b2
b4
b7
Error output Fo
b5
Sep. 2005