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DFE252012F-R47M Datasheet(PDF) 92 Page - Analog Devices |
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DFE252012F-R47M Datasheet(HTML) 92 Page - Analog Devices |
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92 / 122 page  BITFIELD BITS TYPE DESCRIPTION DECODE M4_SSTRT _SR 2:0 O Buck Master4 Soft-Start Slew-Rate Setting 0x0 = 0.15mV/µs. 0x1 = 0.625mV/µs. 0x2 = 1.25mV/µs. 0x3 = 2.5mV/µs. 0x4 = 5.0mV/µs. 0x5 = 10mV/µs. 0x6 = 20mV/µs. 0x7 = 40mV/µs. M4_CFG3 (0x59) BIT 7 6 5 4 3 2 1 0 Field M4_BBRK[1:0] M4_ADIS10 0 M4_ADIS1 M4_FTRAK M4_REFRE SH M4_FSREN M4_FPWM Reset 0x0 0x1 0x0 0x0 0x0 0x1 0x0 Access Type Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read Write, Read BITFIELD BITS TYPE DESCRIPTION DECODE M4_BBRK 7:6 O Buck Master4 Body-Braking Control Setting 0x0 = Disable. 0x1 = Body braking for 8μs. 0x2 = Body braking for 8μs followed by FPWM for 8μs. 0x3 = Reserved. M4_ADIS10 0 5 O Buck Master4 100Ω Active Discharge 0x0 = Disable. 0x1 = Enable. M4_ADIS1 4 O Buck Master4 1Ω Active Discharge: Note that 1Ω active discharge must be disabled when falling slew-rate function of corresponding output is disabled (M4_FSREN = 0) 0x0 = Disable. 0x1 = Enable (active for 1ms after soft-stop is completed). M4_FTRAK 3 O Buck Master4 Internal Frequency Tracking Control 0x0 = Disable. 0x1 = Enable. M4_REFRE SH 2 O Buck Master4 Bootstrap Refresh Interval Control 0x0 = 128μs. 0x1 = 10μs. M4_FSREN 1 O Buck Master4 Falling Slew-Rate Control 0x0 = Disable (buck does not sink current from COUT in skip or LP-skip mode). 0x1 = Enable (buck operates in FPWM mode to sink current from COUT when its VOUT(TARGET) is lower than the actual VOUT). M4_FPWM 0 O Buck Master4 Forced-PWM Control 0x0 = Disable (automatic skip mode operation under light load condition). 0x1 = Enable (OR logic with FPWM_M4 input). M4_CFG4 (0x5A) BIT 7 6 5 4 3 2 1 0 Field M4_SS_ENV[1:0] M4_SS_FREQ[1:0] M4_SSM_PAT[1:0] M4_FREQ[1:0] Reset 0x0 0x0 0x0 0x1 Access Type Write, Read Write, Read Write, Read Write, Read MAX77542 16VIN/16A, Quad-Phase High-Efficiency Buck Converter www.analog.com Analog Devices | 92 |
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