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TC1305 데이터시트(PDF) 4 Page - Microchip Technology |
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TC1305 데이터시트(HTML) 4 Page - Microchip Technology |
4 / 18 page TC1305 DS21526A-page 4 © 2002 Microchip Technology Inc. 2.0 PIN DESCRIPTIONS Thedescriptionsof the pins arelistedinTable2-1. TABLE 2-1: PIN FUNCTION TABLE Pin No. (10-Pin MSOP) Symbol Description 1VDET Detected input voltage. VDET and VIN can be connected together. 2VIN Power supply input. 3 GND Ground terminal. 4 SELECT Tri-state input for setting VOUT1 and VOUT2. SELECT = GND for VOUT1 =VOUT2 =2.5V, SELECT = VIN for VOUT1 =VOUT2 = 3.0V and SELECT = No connect for VOUT1 =VOUT2 =2.8V. 5 SHDN1 Shutdown control input for VOUT1. Regulator 1 is fully enabled when a logic high is applied to this input. Regulator 1 enters shutdown when a logic low is applied to this input. During shutdown, regulator output voltage falls to zero, RESET output remains valid. 6 SHDN2 Shutdown control input for VOUT2. Regulator 2 is fully enabled when a logic high is applied to this input. Regulator 2 enters shutdown when a logic low is applied to this input. During shutdown, regulator output voltage falls to zero, RESET output remains valid. 7 Bypass Reference bypass input. Connecting a 0.01 µF to this input further reduces output noise. 8VOUT1 Regulated voltage output 1. 9VOUT2 Regulated voltage output 2. 10 RESET RESET Output. RESET =Low when VDET is below the Reset Threshold Voltage. RESET = HighwhenVDET is above the Reset Threshold Voltage. |
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