Datenblatt-Suchmaschine für elektronische Bauteile |
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L6911 Datenblatt(PDF) 3 Page - STMicroelectronics |
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L6911 Datenblatt(HTML) 3 Page - STMicroelectronics |
3 / 7 page PIN FUNCTIONS N ° Name Description 1 VSEN Connected to the output voltage is able to manage overvoltage conditions and the PGOOD signal. 2 OCSET A resistor connected from this pin and the upper Mos Drain sets the current limit protection. The internal 200 µA current generator sinks a current from the drain through the external resistor. The overcurrent threshold is due to the following equation: IP = Iocs⋅ Rocs Rdson 3 SS The soft start time is programmed connecting an external capacitor from this pin and GND. The internal current generator forces through the capacitor 10 µA. This pin can be used to disable the device forcing a voltage lower than 0.4V. 4 - 8 VID0 - 4 Voltage Identification code pins. These input are open collector and TTL compatible. Are used to program the output voltage as specified in Table 1 and to set the overvoltage and powergood thresholds. 9 COMP This pin is connected to the error amplifier output and is used to compensate the voltage control feedback loop. 10 FB This pin is connected to the error amplifier inverting input and is used to compensate the voltage control feedback loop. 11 GND All internal voltage reference are referred to this pin. 12 PGOOD This pin is an open collector output and is pulled low if the output voltage is not within ±10% of the programmed voltage. This pin is forced high if the ”11111” VID is set. 13 PHASE This pin is connected to the source of the upper mosfet and provides the return path for the high side driver. This pin monitors the drop across the upper mosfet for the current limit. 14 UGATE High side gate driver output. 15 BOOT Bootstrap capacitor pin. Through this pin is supplied the high side driver and the upper mosfet. 16 PGND Power ground pin. This pin has to be connected closely to the low side mosfet source in order to reduce the noise injection into the device. 17 LGATE This pin is the lower mosfet gate driver output. 18 VCC Device supply voltage. The operative supply voltage range is 4.5V to 12V. Do not connect VIN to 12V if VCC is 5V. 19 OVP Over voltage protection. If the output voltage reach the 15% above the programmed voltage this pin is driven high and can be used to drive an external SCR that crowbar the supply voltage. VSEN OCSET SS VID0 VID1 VID3 VID2 VID4 COMP PGOOD PHASE UGATE PGND BOOT LGATE VCC OVP RT 1 3 2 4 5 6 7 8 9 18 17 16 15 14 12 13 11 19 10 20 FB GND D98IN958 PIN CONNECTION L6911B 3/7 |
Ähnliche Teilenummer - L6911 |
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Ähnliche Beschreibung - L6911 |
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