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L6599A Datasheet(PDF) 7 Page - STMicroelectronics |
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L6599A Datasheet(HTML) 7 Page - STMicroelectronics |
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7 / 35 page  L6599A Pin connection Doc ID 15308 Rev 7 7/35 9PFC_STOP Open-drain ON/OFF control of PFC controller. This pin, normally open, is intended for stopping the PFC controller, for protection purposes or during burst mode operation. It goes low when the IC is shut down by DIS>1.85 V, ISEN > 1.5 V, LINE > 6 V and STBY < 1.24 V. The pin is pulled low also when the voltage on the DELAY exceeds 2 V and goes back open as the voltage falls below 0.3 V. During UVLO, it is open. Leave the pin unconnected if not used. 10 GND Chip ground. Current return for both the low-side gate-drive current and the bias current of the IC. All of the ground connections of the bias components should be tied to a track going to this pin and kept separate from any pulsed current return. 11 LVG Low-side gate-drive output. The driver is capable of 0.3 A min. source and 0.8 A min. sink peak current to drive the lower MOSFET of the half bridge leg. The pin is actively pulled to GND during UVLO. 12 Vcc Supply voltage of both the signal part of the IC and the low-side gate driver. Sometimes a small bypass capacitor (0.1 µF typ.) to GND may be useful to get a clean bias voltage for the signal part of the IC. 13 N.C. High-voltage spacer. The pin is not internally connected to isolate the high- voltage pin and ease compliance with safety regulations (creepage distance) on the PCB. 14 OUT High-side gate-drive floating ground. Current return for the high-side gate- drive current. Layout carefully the connection of this pin to avoid too large spikes below ground. 15 HVG High-side floating gate-drive output. The driver is capable of 0.3 A min. source and 0.8 A min. sink peak current to drive the upper MOSFET of the half bridge leg. A resistor internally connected to pin 14 (OUT) ensures that the pin is not floating during UVLO. 16 VBOOT High-side gate-drive floating supply voltage. The bootstrap capacitor connected between this pin and pin 14 (OUT) is fed by an internal synchronous bootstrap diode driven in-phase with the low-side gate drive. This patented structure replaces the normally used external diode. Table 2. Pin description (continued) Pin N# Type Function |
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Similar Description - L6599A |
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