STK57FU391A-E Ver la hoja de datos (PDF) - ON Semiconductor

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componentes Descripción

Fabricante

STK57FU391A-E

PFC converter + 3-phase Inverter Power H-IC for 3-phase Motor Drive

ON Semiconductor 

STK57FU391A-E

Input / Output Timing Chart

 UVLO(under Voltage Lockout) protection

LIN/PFCIN

Protection state

Reset

Set

Reset

Control supply voltage VD

Under voltage trip

Normal operation

Under voltage reset

Output Current Ic (A)

After the voltage level reaches UV reset, the circuits start to

operate when next input is applied .

Fault output

Fault output

<Fig.7>

IGBT turn off

*1 : When VDD decreases all gate output signals will go low and cut off all 6 IGBT outputs. When VDD rises the operation will

resume immediately.

*2 : When the upper side voltage at VB1, VB2 and VB3 drops only the corresponding upper side output is turned off. The outputs

return to normal operation immediately after the upper side gate voltage rises.

 Over current protection (ITRIP/PFCTRIP).

HIN/LIN/PFCIN

Protection state

DRVH/DRVL/DRPFC

Set

Reset

Normal operation

Over current

detection

Over current

IGBT turn off

Output Current Ic (A)

Voltage of

Shunt resistor

Fault output

Fault output

Over current reference voltage

RC circuit time constant

<Fig.8>

*1 : When VITRIP exceeds threshold all IGBT’s are turned off and normal operation resumes 2ms (typ) after over current condition is

removed.

No.A2240-9/16

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