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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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G683L18SQL1U датащи(PDF) 13 Page - Global Mixed-mode Technology Inc |
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G683L18SQL1U датащи(HTML) 13 Page - Global Mixed-mode Technology Inc |
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13 / 18 page  Ver: 0.8 Feb 27, 2013 TEL: 886-3-5788833 http://www.gmt.com.tw 13 G682/G683 Global Mixed-mode Technology Functional Diagram Figure 2 Separated Sense Pin Since the sense pin is separated from power supply, it allows the IC to monitor added power supply. Using the IC with the sense pin separated from power supply enables output to maintain the state of detection even when voltage of the monitored power supply drops to 0V. Adjustable Reset Threshold (G68_ _09T_) Since the VSEN pin of G68_ _09T_ is high impedance, it can be used to adjust reset threshold. Connect two resistors in series from the detected power to GND and the divided voltage is compared to reset threshold (0.788V typical). (Figure 3) The voltage threshold is: 2 R 2 R 1 R 788 0 Vth ) ( . + × = Figure 3 VREF RESET (RESET) CD + OUTPUT BUFFER VCC VREF RESET (RESET) CD + OUTPUT BUFFER VCC VSEN Detect Voltage Internal Resistor Divide Sense Voltage External Restor Divide Sense Voltage (only G68__09T_) VREF RESET (RESET) CD + OUTPUT BUFFER VCC VREF RESET (RESET) CD + OUTPUT BUFFER VCC VSEN Detect Voltage Internal Resistor Divide Sense Voltage External Restor Divide Sense Voltage (only G68__09T_) *The 100kΩ pull up resistor is only for G683L VCC VSEN GND RESET (RESET) CD *100kΩ Detect Voltage R1 R2 *The 100kΩ pull up resistor is only for G683L VCC VSEN GND RESET (RESET) CD *100kΩ Detect Voltage R1 R2 |
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