PS21267-AP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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PS21267-AP

Dual-In-Line Intelligent Power Module

MITSUBISHI ELECTRIC  

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

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