FCAS30DN60BB Datasheet, PDF (9/14 Pages) Fairchild Semiconductor – Smart Power Module for SRM

Time Charts of Protective Function
Input Signal
Protection
Circuit State
Control
Supply Voltage
RESET
UV_CCR
a1
SET
UV_CCD
a3
a2
a4
RESET
a6
a7
Output Current
a5
Fault Output Signal
a1 : Control supply voltage rises: After the voltage rises UV_CCR, the circuits start to operate when next input is applied.
a2 : Normal operation: IGBT ON and carrying current.
a3 : Under voltage detection (UV_CCD).
a4 : IGBT OFF in spite of control input condition.
a5 : Fault output operation starts.
a6 : Under voltage reset (UV_CCR).
a7 : Normal operation: IGBT ON and carrying current.
Fig. 6. Under-Voltage Protection (Low-side)
Input Signal
Protection
Circuit State
RESET
SET
Control
Supply Voltage
UV_BSR
b1
UV_BSD
b3
b2
b4
RESET
b5
b6
Output Current
Fault Output Signal
High-level (no fault output)
b1 : Control supply voltage rises: After the voltage reaches UV_BSR, the circuits start to operate when next input is applied.
b2 : Normal operation: IGBT ON and carrying current.
b3 : Under voltage detection (UV_BSD).
b4 : IGBT OFF in spite of control input condition, but there is no fault output signal.
b5 : Under voltage reset (UV_BSR)
b6 : Normal operation: IGBT ON and carrying current
Fig. 7. Under-Voltage Protection (High-side)
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FCAS30DN60BB Rev. A
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