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PAC1921 датащи(PDF) 39 Page - Microchip Technology

номер детали PAC1921
подробное описание детали  High-Side Current/Power Sensor
PDF  56 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PAC1921 датащи(HTML) 39 Page - Microchip Technology

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Software Description
 2015 Microchip Technology Inc.
DS50002376A-page 39
4.4
EVALUATION BOARD EXAMPLES
4.4.1
Power Pin-Controlled Integration Example
This example provides steps to experiment with pin-controlled integration in SMBus
mode and see the effects of gain.
1. In the Main Configuration section, check the “READ/INT OVR” box. This allows
the INT_EN bit to override the READ/INT pin state. Also check the “Enable Auto
INT_EN” control to set automatic GUI updates.
2. In the Panel and Integration Control section, check the “Integration Time GUI
Controlled” box, and set the “Read Period (ms)” to 500 ms. This causes the
INT_EN bit to toggle between high for 500 ms (putting the PAC1921 in the
Integrate state) and low for 500 ms (putting the device in the Read state).
3. In the EVB Demo Configuration section, check the “Enable DC Vsense-
Stimulus” box and type 40 mV in the “DC Vsense- Stimulus (mV)” box.
4. Observe the plots on the Vbus & Vsense tab, as shown in Figure 4-18. The
evaluation board demo VBUS is ~5.1V and VSENSE is ~0.04V.
FIGURE 4-18:
Pin-Controlled Integration, No Gain.
Check the “READ/INT OVR” Box
Check the “Enable Auto INT_EN” Control



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