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L99VR01STR Datenblatt(PDF) 20 Page - STMicroelectronics |
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L99VR01STR Datenblatt(HTML) 20 Page - STMicroelectronics |
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20 / 47 page ![]() Figure 34. Ishort versus Rsh Open pin (no resistance on the Ishort pin), is seen as a max resistance corresponding to the maximum Ishort current. 4.3 Output voltage selection The L99VR01 can provide one out of 8 different output voltages. The combination of three digital input selectors (SELx) determines the output voltage according to the following truth table. Table 12. Truth table VO SEL1 SEL2 SEL3 5 1 1 1 3.3 1 1 0 2.8 1 0 1 2.5 1 0 0 1.8 0 1 1 1.5 0 1 0 1.2 0 0 1 0.8 (Default) 0 0 0 The SELx pins configuration is acquired at the device start-up (EN transition from low to high) and once configuration is acknowledged, it cannot be changed until next EN transition. When all the pins are left not connected, the default configuration will be selected. L99VR01 Output voltage selection DS13649 - Rev 3 page 20/47 |
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