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TS13102 датащи(PDF) 10 Page - Semtech Corporation |
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TS13102 датащи(HTML) 10 Page - Semtech Corporation |
10 / 16 page TS13102 Final Datasheet Rev 2.3 28 July 2016 10 of 16 Semtech Proprietary & Confidential Heartbeat Functionality When the Switch is off and the Heartbeat Command Sequence has been transmitted, the DATA pin provides a pulse synchronous with the zero crossings of the AC waveform. A single pulse or “Heartbeat” for each crossing will be present with a pulse-width of THB as shown in the figure below. This is useful for monitoring load presence and for evaluating the phase of the AC waveform. Figure 4: Heartbeat Functionality Multi-channel Application In a multi-channel application, dithering is unnecessary as long as one device is switched off. As long as the device address pins are wired uniquely for each channel, a single pair of GPIO pins on the microcontroller can control each device by matching the address in the CMD sequence with the hardwired address. If all devices must be on simultaneously, one device can be configured for dithering mode to maintain system supply. The SYSP net should be tied to the SYSM net through the CSYS capacitor as shown in the Figure 5 below. For a single transformer system, only one is necessary. If additional transformers are used in a given system, then the SYSP and SYSM pins for those TS13102 devices will need an additional CSYS capacitor for each additional transformer. Current limit resistors are needed for each SYSP pin and each SYSM pin as shown below (RSYSP and RSYSM respectively). These are typically 100 Ω, ¼ W. A pair of GPIO pins can manage the command and control for up to 8 loads as long as each TS13102 has a unique address. The address pins are set using hard wired connections according to the Address Configuration Table shown in Figure 5. Also note that some devices can be wired in non-latching mode and others in latching mode. |
Аналогичный номер детали - TS13102 |
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Аналогичное описание - TS13102 |
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