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TL431LI Fiches technique(PDF) 22 Page - Texas Instruments |
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TL431LI Fiches technique(HTML) 22 Page - Texas Instruments |
22 / 32 page TL43xLIx 650 Ω 2 kΩ C On Off R 12 V n ref 12 V Delay = R × C × I 12 V – V æ ö ç ÷ ç ÷ è ø Copyright © 2017, Texas Instruments Incorporated TL43xLIx VI(BATT) R3 (see Note A) R1A R4 (see Note A) R2B R2A R1B Low Limit = 1 + R1B R2B V ref High Limit = 1 + R1A R2A V ref LED on When Low Limit < VI(BATT) < High Limit Copyright © 2017, Texas Instruments Incorporated TL43xLIx 12 V VCC 5 V 6.8 kΩ 10 kΩ 10 kΩ 0.1% 10 kΩ 0.1% X Not Used Feedback TL598 + − Copyright © 2017, Texas Instruments Incorporated 22 TL431LI TL432LI SLVSDQ6 – JULY 2018 www.ti.com Product Folder Links: TL431LI TL432LI Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated System Examples (continued) Figure 31. PWM Converter With Reference A. Select R3 and R4 to provide the desired LED intensity and cathode current ≥1 mA to the TL431LI at the available VI(BATT). Figure 32. Voltage Monitor Figure 33. Delay Timer |
Numéro de pièce similaire - TL431LI |
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Description similaire - TL431LI |
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