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TMP302A-Q1 데이터시트(PDF) 10 Page - Texas Instruments |
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TMP302A-Q1 데이터시트(HTML) 10 Page - Texas Instruments |
10 / 18 page Time (5 µs/div) OUT VS Time (10 ms/div) OUT VS TMP302-Q1 TRIPSET0 TRIPSET1 HYSTSET GND VS OUT 0.1 µF OUTPUT VS 1.4 V to 3.6 V 10 k TMP302-Q1 SLOS889B – OCTOBER 2014 – REVISED JULY 2015 www.ti.com Typical Application (continued) Figure 11. TMP302-Q1 Generic Application Schematic 9.2.1 Design Requirements Designing with the TMP302-Q1 family of devices is simple, See Figure 10 and Figure 11 for typical circuit configurations. 9.2.2 Detailed Design Procedure Determine the threshold temperature and hysteresis required for the application. Connect the TMPSET0, TMPSET1 and HYSTSET pins according to the application requirements. Refer to Table 1 and Table 2. Use a 10-k Ω pullup resistor from the OUT pin to the VS pin. To minimize power, a larger-value pullup resistor can be used but must not exceed 100 k Ω. Place a 0.1-µF bypass capacitor close to the TMP302-Q1 device to reduce noise coupled from the power supply. 9.2.3 Application Curves Figure 12 and Figure 13 show the TMP302A-Q1 power on response with the ambient temperature less than 50°C and greater than 50°C respectively. The TMP302A-Q1 was configured with trip point set to 50°C. The TMP302B-Q1, TMP302C-Q1, and TMP302D-Q1 devices behave similarly with regards to power on response with TA below or above the trip point. Note that the OUT signal typically requires 35 ms following power on to become valid. Figure 12. TMP302A-Q1 Power-On Response, TA Less than Figure 13. TMP302A-Q1 Power-On Response, TA Greater 50°C than 50°C 10 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: TMP302-Q1 |
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