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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ISL6721 датащи(PDF) 2 Page - Intersil Corporation |
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ISL6721 датащи(HTML) 2 Page - Intersil Corporation |
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2 / 21 page  2 FN9110.4 April 13, 2007 Functional Block Diagram VREF SS 12k ON ON ON 30k 100k 5k 4.5k 20k VCC ISENSE ISET COMP SS OV UV GATE SLOPE VFB PGND VC SYNC RTCT LGND VREF SOFT-START CHARGE CURRENT FAULT LATCH PWM COMPARATOR SET DOMINANT SS LOW 0.8 OVERCURRENT SHUTDOWN DELAY SS CLAMP 2.5V ENABLE OC LATCH SS LOW COMPARATOR VREF UV COMPARATOR 4.65V 4.375V 1mA 4V 3.0V 1.5V OSCILLATOR COMPARATOR 70µA 3.0V BLANKING COMPARATOR OC DETECT SS CHARGED + - START/STOP UV COMPARATOR VREF 5.00 V 1 % + - BG + - 100mV + + S 0.1 53µA + - ERROR AMPLIFIER + - 1/3 VREF + - ON VREF + - VREF 15µA + - 25µA S R Q Q + - 270mV S R Q Q + - OVERCURRENT COMPARATOR 100nS BLANKING + - START + - VREF + - 2.50V 1.45V BG + - 36k + - 2V Q Q 50µs RETRIGGERABLE ONE SHOT SYNC IN SYNC OUT EXT SYNC BLANKING NO EXT SYNC CLK OUT BI-DIRECTIONAL SYNCHRONIZATION OSC IN SS CHARGE VOLTAGE CLAMP THERMAL PROTECTION RESTART DELAY S R Q Q ISL6721 |
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