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L99UDL01 датащи(PDF) 55 Page - STMicroelectronics |
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L99UDL01 датащи(HTML) 55 Page - STMicroelectronics |
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55 / 88 page ![]() DS12511 Rev 5 55/88 L99UDL01 Programmers guide 87 LSDx, HSDx These bits determine the polarity of an output. Only a low side driver or a high side driver for a single output can be on at a time. If both a low side driver and a high side driver for a specific output are enabled simultaneously the output will be tri-stated. FPWM_x PWM frequency selection These three bits provide PWM frequency selection to optimize the current regulation / PWM frequency for the loads. This is a global command. All integrated drivers will use the selected frequency to provide PWM voltage control or PWM current control. 13 FPWM0 PWM Frequency selection bit 0 12 HSD6 Hbridge HSD 6 Enable 11 HSD5 Hbridge HSD 5 Enable 10 HSD4 Hbridge HSD 4 Enable 9 HSD3 Hbridge HSD 3 Enable 8 HSD2 Hbridge HSD 2 Enable 7 HSD1 Hbridge HSD 1 Enable 6 LSD6 Hbridge LSD 6 Enable 5 LSD5 Hbridge LSD 5 Enable 4 LSD4 Hbridge LSD 4 Enable 3 LSD3 Hbridge LSD 3 Enable 2 LSD2 Hbridge LSD 2 Enable 1 LSD1 Hbridge LSD 1 Enable 0Parity Table 27. 00H Command description Bit# Command Description Table 28. Polarity command bits Output polarity LSDx HSDx Polarity 0 0 Tristate 0 1 High Side on 1 0 Low Side on 1 1 Tristate |
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