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參數(shù)資料
| 型號(hào)： | PS22A78-E |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | AC MOTOR CONTROLLER, 70 A, DMA42 |
| 封裝： | MODULE-42 |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 441K |
| 代理商： | PS22A78-E |
6
MITSUBISHI SEMICONDUCTOR < Dual-In-Line Package Intelligent Power Module>
PS22A78-E
TRANSFER-MOLD TYPE
INSULATED TYPE
Dec. 2010
Fig. 5 TIMING CHARTS OF THE DIPIPM PROTECTIVE FUNCTIONS
[A] Short-Circuit Protection (N-side only with the external sense resistor and RC filter)
a1. Normal operation: IGBT ON and outputs current.
a2. Short circuit current detection (SC trigger) (It is recommended to set RC time constant 1.5~2.0μs so that IGBT shut down within 2.0μs when SC.)
a3. All N-side IGBT's gates are hard interrupted.
a4. All N-side IGBTs turn OFF.
a5. FO outputs with a fixed pulse width determined by the external capacitor CFO.
a6. Input = “L”: IGBT OFF
a7. Fo finishes output, but IGBTs don't turn on until inputting next ON signal (L H).
(IGBT of each phase can return to normal state by inputting ON signal to each phase.)
a8. Normal operation: IGBT ON and outputs current.
[B] Under-Voltage Protection (N-side, UVD)
b1. Control supply voltage V D exceeds under voltage reset level (UVDr), but IGBT turns ON when inputting next ON signal (L H).
(IGBT of each phase can return to normal state by inputting ON signal to each phase.)
b2. Normal operation: IGBT ON and outputs current.
b3. VD level drops to under voltage trip level. (UVDt).
b4. All N-side IGBTs turn OFF in spite of control input condition.
b5. Fo outputs for the period determined by the capacitance CFO, but output is extended during VD keeps below UVDr.
b6. VD level reaches UVDr.
b7. Normal operation: IGBT ON and outputs current.
Lower-side control
input
Protection circuit state
Internal IGBT gate
Output current Ic
Sense voltage of
the sense resistor
Error output Fo
SC trip current level
a2
SET
RESET
SC reference voltage
a1
a3
a6
a7
a4
a8
a5
Delay by RC filtering
UVDr
RESET
SET
RESET
UVDt
b1
b2
b3
b4
b6
b7
b5
Control input
Protection circuit state
Control supply voltage VD
Output current Ic
Error output Fo
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