Inx In518 Ic Pinout Diagram Top |best| Jun 2026

When viewing the IC from the top, the pin numbering follows the standard counter-clockwise convention starting from the index dot or notch. Electrical Engineering Stack Exchange Pin 4 (VCC/VIN): Typically receives as the main power input. VGH (Voltage Gate High): Often measured around 27V to 30V VGL (Voltage Gate Low): Typically a negative voltage, often around -5V to -7V

The IN518 is a specialized DC-DC converter IC used extensively in the T-Con boards of LCD TVs. Unlike general-purpose power management ICs (PMICs), the IN518 is designed to generate the multiple precise voltages required to drive an LCD panel: AVDD (Analog Voltage for the source driver), VGH (Gate High voltage to turn on TFTs), VGL (Gate Low voltage to turn off TFTs), VCOM, and various gamma correction reference voltages.

Because the chip manages multiple switching regulators and linear regulators simultaneously, its pins are clustered into distinct functional zones. A top-down layout trace breaks down into these critical blocks: Power Input (VIN / VCC) inx in518 ic pinout diagram top

: Used in low-resolution industrial control panels where size and cost are critical. Medical Equipment : Found in portable medical monitors.

When a technician turns on a TV, the IN518 orchestrates a specific sequence of power deliveries. Disruptions in this sequence lead to classic "no picture" or "grey screen" issues. When viewing the IC from the top, the

Ground. The reference point for the entire circuit.

Leave a comment below with your IN518 top marking and measured voltages to help build a community cross-reference database. Medical Equipment : Found in portable medical monitors

When looking at the IN518 IC from the (facing the package markings with the pin orientation notch or dot pointing upward/to the left), the pin arrangement follows a standard numbering system. The IN518 is most commonly housed in compact, surface-mount packages like the SOT-23-5 or SOP-8 .

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