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TL432CDBVR Datasheet(PDF) 30 Page - Texas Instruments |
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TL432CDBVR Datasheet(HTML) 30 Page - Texas Instruments |
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30 / 79 page  TL431 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 A. Select R3 and R4 to provide the desired LED intensity and cathode current ≥1mA to the TL431 at the available VI(BATT). Figure 9-12. Voltage Monitor TL431 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 Figure 9-13. Delay Timer TL431 IO RCL 0.1% R1 VI(BATT) Iout V ref R CL I KA R1 V I(BATT) I O h FE I KA + + = = Figure 9-14. Precision Current Limiter TL431 RS 0.1% IO VI(BATT) I O V ref R S = Figure 9-15. Precision Constant-Current Sink TL431, TL432 SLVS543S – AUGUST 2004 – REVISED MAY 2024 www.ti.com 30 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated Product Folder Links: TL431 TL432 |
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