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ATPL00B Datasheet(PDF) 89 Page - ATMEL Corporation |
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ATPL00B Datasheet(HTML) 89 Page - ATMEL Corporation |
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89 / 152 page  Atmel ATPL00B [datasheet] 43028A-ATPL - 9/12 89 9.2 External Circuits Some external components are necessary to control the loads connected to the ATPL00B. The external circuitry must be different depending if the integrated circuit GND pin is connected to power line Neutral or not. Examples of external circuit configurations are described below: Figure 9-6. Phase Control with “non-isolated” connection VNR pin is used to detect the power line wave zero crossing. If the chip ground is not connected to the power line (N) an optocoupler must be used in the detection circuit as shown in Figure 9-7. Figure 9-7. Phase Control with ground connection To connect a mains switch to the integrated circuit, an optocoupled connection is the preferred option (see Figure 9-8). ATPL00B SoC TRIAC VNR P P GND P N N P ATPL00B SoC VNR TRIAC Vcc GND |
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