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L5954 データシート(PDF) 11 Page - STMicroelectronics |
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L5954 データシート(HTML) 11 Page - STMicroelectronics |
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11 / 15 page  L5954 Functional description Doc 17717 Rev 1 11/15 3.1.4 Overvoltage The IC will not operate if the BAT voltage reaches 27 V typ. or above. Figure 3. Definition of timing on the I2C bus. Figure 4. Typical application circuit. 3.1.5 Write mode S = START condition - SDA goes from high to low while SCL is high A = Acknowledge - the device being written to, pulls down on data line (SDA) during the acknowledge clock pulse. P = STOP condition - SDA goes from low to high while SCL is high. tBUP PS P SDA SCL Sr tLOW tR tF tHD;DAT tHD;DAT tSU;DAT tSU;STA tHD;STA tSU;STO D99AU1007 tSP tHIGH FBATT VREF C14 10 μF C12 10 μF C10 10 μF C8 10 μF C6 10 μF 1000 μF 0.1 μF EN REG5 REG4 REG3 REG2 REG1 REG5 HSD1 ENABLE BAT VREF SCL SDA GND REG4 REG3 HSD2 HSD3 HSD1 HSD2 HSD3 D99AU1010A REG2 REG1 (*) ESR of output capacitors should be between 0.1 Ω and 5.0Ω. CHIP ADDRESS DATA BYTE S 0 A A .. .. P MSB LSB MSB LSB Obsolete Product(s) - Obsolete Product(s) |
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