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L6759D Fiches technique(PDF) 11 Page - STMicroelectronics |
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L6759D Fiches technique(HTML) 11 Page - STMicroelectronics |
11 / 51 page L6759D Pin description and connection diagrams Doc ID 023240 Rev 1 11/51 19 ILIM Multi-phase section current limit. A current proportional to the multi-phase load current is sourced from this pin. Connect through a resistor RLIM to GND. When the pin voltage reaches 2.5 V, the overcurrent protection is set and the IC latches. Filter through CLIM to GND to delay OC intervention. 20 SRGND Remote buffer ground sense. Connect to the negative side of the single-phase load to perform remote sense. 21 SFBR Remote buffer positive sense. Connect to the positive side of the single-phase load to perform remote sense. 22 SVSEN Remote buffer output. Output voltage monitor, manages OV and UV protection. Connect with a resistor RSFB // (RSI - CSI) to SFB. 23 SFB Error amplifier inverting input. Connect with a resistor RSFB // (RSI - CSI) to SVSEN and with an (RSF - CSF)// CSH to SCOMP. 24 SCOMP Error amplifier output. Connect with an (RSF - CSF)// CSH to SFB. The device cannot be dis- abled by pulling low this pin. 25 IMAX Connect a resistor divider to GND/VCC5 in order to define the IMAX register. JMode and BOOT voltage can be controlled through this pin. See Table 6 and Section 6 for details. 26 SMDATA PMBus data. 27 SMAL# PMBus alert. 28 SMCLOCK PMBus clock. 29 ADDR Connect a resistor divider to GND/VCC5 in order to define the IC address, to define the GDC and DPM thresholds and to control the droop function on multi-phase. See Table 6 and Section 6 for details. 30 OSC Oscillator pin. It allows the programming of the switching frequency FSW for the multi- phase section. The pin is internally set to 1.02 V, the frequency for multi- phase is programmed according to the resistor connected to GND or VCC with a gain of 10 kHz/µA. Leaving the pin floating programs a switching frequency of 200 kHz per phase. The effective frequency observable on the load results being multiplied by the number of active phases N. See Section 10 for details. 31 VIN Input voltage monitor. Connect to input voltage monitor point through a divider RUP / RDOWN to perform VIN sense through PMBus (RUP. = 118.5 kΩ; RDOWN = 10 kΩ typ.). See Section 12.3 for details. Table 2. Pin description (continued) Pin# Name Function |
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Description similaire - L6759D |
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