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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MP8796B датащи(PDF) 32 Page - Monolithic Power Systems |
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MP8796B датащи(HTML) 32 Page - Monolithic Power Systems |
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32 / 52 page  MP8796B – 16V, 30A, SYNCHRONOUS STEP-DOWN CONVERTER WITH PMBUS MP8796B Rev. 1.0 www.MonolithicPower.com 32 1/19/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. OPERATION (01h) OPERATION is a paged register. The OPERATION command turns the converter output on or off in conjunction with the input from the CTRL pin. OPERATION also sets the output voltage to the upper or lower margin voltages. The unit remains in the commanded operating mode until a subsequent OPERATION command or a change in the state of the CTRL pin instructs the converter to change to another mode. This OPERATION command re-enables the converter after a fault-triggered shutdown. Writing an off command followed by an on command clears all faults. Writing only an on command after a fault-triggered shutdown will not clear the fault registers. Command OPERATION Format Unsigned binary Bit 7 6 5 4 3 2 1 0 Access R/W R/W R/W R/W R/W R/W R R Function X X Default Value 1 0 0 0 0 0 X X Bit[7:6] Bit[5:4] Bit[3:2] Bit[1:0] On/Off Margin state 01h 00 XX XX XX Immediate off N/A 0x00 01 XX XX XX Soft off N/A 0x40 10 00 XX XX On Off 0x80 10 01 01 XX On Margin low (ignore fault) 0x94 10 01 10 XX On Margin low (act on fault) 0x98 10 10 01 XX On Margin high (ignore fault) 0xA4 10 10 10 XX On Margin high (act on fault) 0xA8 ON_OFF_CONFIG (02h) The ON_OFF_CONFIG command configures the combination of the CTRL input and the PMBus commands to turn the converter on and off. This includes how the converter responds when an input voltage is applied. Command ON_OFF_CONFIG Format Unsigned binary Bit 7 6 5 4 3 2 1 0 Access R R R R/W R/W R/W R/W R Function X On Op Ctrl Pol_Ctrl Delay Default Value 0 0 0 1 0 1 1 0 On The on bit sets the device to either operate whenever the input voltage is present, or for the on/off function to be controlled by the CTRL and PMBus commands. Bit[4] Value Meaning 0 Converter powers up when the input voltage is present, regardless of state the of the CTRL pin. 1 Converter does not power up until commanded by the CTRL pin and OPERATION command (as programmed in bit[3:0]). Op The op bit controls how the converter responds to the OPERATION commands. Bit[3] Value Meaning 0 Converter ignores the “on” bit in the OPERATION command from the PMBus. 1 Converter responds to the “on” bit in the OPERATION command from the PMBus. |
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