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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM5145 датащи(PDF) 19 Page - Texas Instruments |
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LM5145 датащи(HTML) 19 Page - Texas Instruments |
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19 / 70 page  Spread spectrum ON (c) Low-frequency triangular + high- frequency randomized modulations (a) Low-frequency triangular modulation (b) High-frequency randomized modulation Spread spectrum OFF Frequency Low RBW High RBW fs(t) 2¨Is t Figure 8-3. Dual Random Spread Spectrum Implementation 8.3.7 Soft Start The LM5148 has an internal 3-ms soft-start timer (typical). The soft-start feature allows the regulator to gradually reach the steady-state operating point, thus reducing start-up stresses and surges. 8.3.8 Output Voltage Setpoint (FB) The LM5148 output can be independently configured for one of three fixed output voltages without external feedback resistors, or adjusted to a desired voltage using an external resistor divider. Set the output to 3.3 V by connecting FB directly to VDDA. Alternatively, set the output to either 5 V or 12 V by installing a 24.9-kΩ or 49.9-kΩ resistor between FB and VDDA, respectively. See Table 8-1. www.ti.com LM5148 SNVSC01 – FEBRUARY 2023 Copyright © 2023 Texas Instruments Incorporated Submit Document Feedback 19 Product Folder Links: LM5148 |
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