PS21267-P-AP Datasheet, PDF (8/10 Pages) Mitsubishi Electric Semiconductor – AC100V~200V three-phase inverter drive for small power motor control.

MITSUBISHI SEMICONDUCTOR <Dual-In-Line Package Intelligent Power Module>
PS21267-P/AP
TRANSFER-MOLD TYPE
INSULATED TYPE
Fig. 7 TIMING CHARTS OF THE DIP-IPM PROTECTIVE FUNCTIONS
[A] Short-Circuit Protection (Lower-arms only) (with 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 “L” : IGBT OFF state.
a7. Input “H” : IGBT ON state, but during the FO signal active period the IGBT doesn’t turn ON.
a8. IGBT OFF in spite of “H” input.
Lower-arms control
input
Protection circuit state
Internal IGBT gate
Output current Ic
Sense voltage of the
shunt resistance
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 reaches UVDr level, the circuits start to operate when the 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. The minimum pulse width of FO is set by the external capacitor CFO, and FO outputs continuously during UV period.
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
Oct. 2005