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FSB43004A Datasheet(PDF) 9 Page - Fairchild Semiconductor |
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FSB43004A Datasheet(HTML) 9 Page - Fairchild Semiconductor |
9 / 12 page ©2015 Fairchild Semiconductor Corporation 9 www.fairchildsemi.com FSB43004A Rev. 1.1 Time Charts of Protective Function a1 : Control supply voltage rises: after the voltage rises UVCCR, the circuits start to operate when the next input is applied. a2 : Normal operation: MOSFET ON and carrying current. a3 : Under-Voltage detection (UVCCD). a4 : MOSFET OFF in spite of control input condition. a5 : Fault output operation starts. a6 : Under-Voltage reset (UVCCR). a7 : Normal operation: MOSFET ON and carrying current. Figure 6. Under-Voltage Protection (Low-side) b1 : Control supply voltage rises: after the voltage reaches UVBSR, the circuits start to operate when the next input is applied. b2 : Normal operation: MOSFET ON and carrying current. b3 : Under-Voltage detection (UVBSD). b4 : MOSFET OFF in spite of control input condition, but there is no fault output signal. b5 : Under-Voltage reset (UVBSR). b6 : Normal operation: MOSFET ON and carrying current Figure 7. 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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