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LP3952RL/NOPB датащи(PDF) 25 Page - Texas Instruments |
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LP3952RL/NOPB датащи(HTML) 25 Page - Texas Instruments |
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25 / 46 page ![]() SW BATTERY VDD1 VDDA LDO Analog supply voltage 2.8V LP3954 Digital supply voltage VDD2 CIN 10 F CVDD 100 nF CVDDA 1 PF 4.7 H SW BATTERY VDD1 VDDA LDO Analog supply voltage 2.8V LP3954 Digital supply voltage LDO 2.8V VDD2 CIN 10 PF CVDD 100 nF CVDDA 1 PF 4.7 PH LP3952 www.ti.com SNVS518A – JULY 2007 – REVISED MARCH 2013 Output Current vs RRGB (Current Sink Mode) Figure 14. 7V Shielding (1.65V ≤ V DDIO ≤ VDD1,2V) (unless otherwise noted) To shield LP3952 from high input voltages 6…7.2V the use of external 2.8V LDO is required. This 2.8V voltage protects internally the device against high voltage condition. The recommended connection is as shown in the picture below. Internally both logic and analog circuitry works at 2.8V supply voltage. Both supply voltage pins should have separate filtering capacitors. In cases where high voltage is not an issue the connection is as shown below Copyright © 2007–2013, Texas Instruments Incorporated Submit Documentation Feedback 25 Product Folder Links: LP3952 |
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