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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LP3906 датащи(PDF) 33 Page - Texas Instruments |
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LP3906 датащи(HTML) 33 Page - Texas Instruments |
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33 / 47 page  2 MHz Time Spread Spectrum frequency 10 kHz triangle wave Peak frequency deviation 2 kHz triangle wave LP3906 www.ti.com SNVS456M – AUGUST 2006 – REVISED MAY 2013 BUCK 2 RAMP CONTROL REGISTER (B2RC) - 0x2B This register allows the user to program the rate of change between the target voltages of Buck 2 D7 D6-4 D3-0 Name - - - - - - - - B2RS Access - - - - - - - - R/W Data Reserved Reserved Data Code Ramp Rate mV/us 4h'0 Instant 4h'1 1 4h'2 2 4h'3 3 4h'4 4 4h'5 5 4h'6 6 4h'7 7 4h'8 8 4h'9 9 4h'A 10 4h'B - 4h'F 10 Reset 0 010 1000 BUCK FUNCTION REGISTER (BFCR) – 0x38 This register allows the Buck switcher clock frequency to be spread across a wider range, allowing for less Electro-magnetic Interference (EMI). The spread spectrum modulation frequency refers to the rate at which the frequency ramps up and down, centered at 2 MHz. D7-2 D1 D0 Name — BK_SLOMOD BK_SSEN Access — R/W R/W Data Reserved Buck Spread Spectrum Modulation Spread Spectrum Function Output 0 – 10 kHz triangular wave 0 – Disabled 1 – 2 kHz triangular wave 1 – Enabled Reset 000010 1 0 Copyright © 2006–2013, Texas Instruments Incorporated Submit Documentation Feedback 33 Product Folder Links: LP3906 |
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