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FNC42060F Datasheet(PDF) 11 Page - Fairchild Semiconductor |
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FNC42060F Datasheet(HTML) 11 Page - Fairchild Semiconductor |
11 / 16 page ©2013 Fairchild Semiconductor Corporation 11 www.fairchildsemi.com FNC42060F / FNC42060F2 Rev. C3 Time Charts of Protective Function a1 : Control supply voltage rises: after the voltage rises UVCCR, the circuits start to operate when next input is applied. a2 : Normal operation: IGBT ON and carrying current. a3 : Under-voltage detection (UVCCD). a4 : IGBT OFF in spite of control input condition. a5 : Fault output operation starts. a6 : Under-voltage reset (UVCCR). a7 : Normal operation: IGBT ON and carrying current. Figure 11. Under-Voltage Protection (Low-Side) b1 : Control supply voltage rises: after the voltage reaches UVBSR, the circuits start to operate when next input is applied. b2 : Normal operation: IGBT ON and carrying current. b3 : Under-voltage detection (UVBSD). b4 : IGBT OFF in spite of control input condition, but there is no fault output signal. b5 : Under-voltage reset (UVBSR). b6 : Normal operation: IGBT ON and carrying current. Figure 12. Under-Voltage Protection (High-Side) Input Signal Output Current Fault Output Signal Control Supply Voltage RESET UV CCR Protection Circuit State SET RESET UV CCD a1 a3 a2 a4 a6 a5 a7 Input Signal Output Current Fault Output Signal Control Supply Voltage RESET UV BSR Protection Circuit State SET RESET UV BSD b1 b3 b2 b4 b6 b5 High-level (no fault output) |
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