PS21964-S MITSUBISHI, PS21964-S Datasheet - Page 6

• Manufacturer Part Number: PS21964-S
• Description: TRANSFER-MOLD TYPE INSULATED TYPE
• Manufacturer: MITSUBISHI

Fig. 3 TIMING CHART OF THE DIP-IPM PROTECTIVE FUNCTIONS
[A] Short-Circuit Protection (Lower-arms only with the external shunt resistor and CR filter)
[B] Under-Voltage Protection (Lower-arm, UV
a1. Normal operation : IGBT ON and carrying current.
a2. Short circuit detection (SC trigger).
a3. IGBT gate hard interruption.
a4. IGBT turns OFF.
a5. F
a6. Input “L” : IGBT OFF.
a7. Input “H” : IGBT ON.
a8. IGBT OFF in spite of input “H”.
b1. Control supply voltage rises : After the voltage level reaches UV
b2. Normal operation : IGBT ON and carrying current.
b3. Under voltage trip (UV
b4. IGBT OFF in spite of control input condition.
b5. F
b6. Under voltage reset (UV
b7. Normal operation : IGBT ON and carrying current.
O
O
output (t
output (t
FO(min)
FO
Lower-arms control
input
Protection circuit state
Internal IGBT gate
Sense voltage of the
shunt resistor
Error output Fo
Output current Ic
Control input
Protection circuit state
Control supply voltage V
Output current Ic
Error output Fo
20 s and F
= 20 s).
Dt
).
Dr
).
O
output continuously during UV period).
D
UV
a1
Dr
D
)
SC
RESET
b1
SET
a2
a5
a3
SC reference voltage
Dr
UV
a4
, the circuits start to operate when next input is applied.
CR circuit time
constant DELAY
b2
Dt
a6
a7
SET
a8
RESET
b3
b4
b5
RESET
b6
TRANSFER-MOLD TYPE
b7
INSULATED TYPE
PS21964-S
Jun. 2005