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MCP1502 датащи(PDF) 3 Page - Microchip Technology |
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MCP1502 датащи(HTML) 3 Page - Microchip Technology |
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3 / 28 page ![]() 2021 Microchip Technology Inc. and its subsidiaries DS20006593A-page 3 MCP1502 1.0 PIN FUNCTION TABLE The pin functions are described in Table 1-1. 1.1 Buffered VREF Output (OUT) This is the buffered reference output. The output driver is tri-stated when in shutdown. 1.2 System Ground (GND) This is the power supply return and should be connected to system ground. 1.3 Shutdown Pin (SHDN) This is a digital input that will place the device in shutdown. The device should be allowed to power up before using this feature. This pin is active-low. When this pin is low, there will be no output. 1.4 Power Supply Input (VDD) This power pin also serves as the input voltage for the voltage reference. Refer to Section 2.0 “Electrical Characteristics” to determine minimum voltage based on the device. It is recommended to connect a 0.1 µF capacitor very close to the VDD pin. TABLE 1-1: PIN FUNCTION TABLE SOT-23 Symbol Function 1OUT VREF Output 2, 3, 5 GND System Ground 4 SHDN Shutdown Pin Active-Low 6VDD Power Supply Input Note: Before using the Shutdown pin, the device should first be powered up. Once the device is fully powered up, the Shutdown pin can be used. |
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