Inverting amplifier
Buffer / Voltage follower
Single-supply AC-coupled audio preamp
For a clear mental image of the INX IN518 IC pinout diagram, visualize the IC with its orientation mark (notch or dot) at the top:
Top View (Notch Up):
┌───────────────────────────────────┐
│ 1 o 18 │
│ 2 17 │
│ 3 16 │
│ 4 15 │
│ 5 14 │
│ 6 13 │
│ 7 12 │
│ 8 11 │
│ 9 10 │
└───────────────────────────────────┘
Pin 1 is the bottom-left when the notch is facing upward. Pin 18 is bottom-right. Always confirm with a multimeter between VSS (pin 1) and VDD (pin 17) before applying power.
The "INX" prefix typically refers to Innolux (formerly a subsidiary of Foxconn), a major manufacturer of TFT-LCD panels. The IN518 is most likely a dedicated DC-DC converter or a Gamma reference buffer designed specifically for TFT-LCD source drivers.
It is commonly found in 40-pin or 48-pin QFN (Quad Flat No-lead) or TSSOP packages. Its primary role is to generate the multiple analog voltage rails required to drive liquid crystals (VGH, VGL, VCOM, AVDD).
Analyzing the INX IN518 IC pinout diagram reveals three major internal blocks: Inx In518 Ic Pinout Diagram
| Pin(s) | Name | Typical Role | |--------|-------------|---------------------------------------------------| | 1 | VIN | Main DC input (e.g., 5V, 12V, or 3.3V) | | 2 | EN | Enable pin (active high) | | 3 | POK | Power OK flag (open-drain) | | 4 | VREF_IN | External reference voltage input | | 5 | FB_AVDD | Feedback for AVDD boost converter | | 6 | FB_VCOM | Feedback for VCOM amplifier | | 7,13 | GND_xxx | Ground (separate power/logic) | | 8 | SW_AVDD | Switching node for boost converter (inductor pin) | | 9 | LXD_VGH | Level-shifted gate-high control | | 10 | LXD_VGL | Level-shifted gate-low control | | 11 | CLK_IN | Clock input for timing/charge pump | | 12 | SD_IN | Shutdown input (active low) | | 14 | SCL | I2C clock (optional configuration) | | 16 | SDA | I2C data | | 25 | VGH_OUT | Gate-on voltage (typically +25V to +30V) | | 24 | VGL_OUT | Gate-off voltage (typically -5V to -10V) | | 26 | AVDD_OUT | Analog supply for source drivers (~8V-13V) | | 23 | VCOM_OUT | Common electrode voltage (~6V-8V, adjustable) | | 22-18 | Gamma_Refx | Gamma correction reference voltages |
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Since "Inx In518" appears to be a typo or a partial reference, this detailed review covers the most likely component you are looking for: the 1N5189 (a standard Silicon Switching Diode often referenced in lists near "518") or the general 1N518x series.
If you are referring to a specific Integrated Circuit (IC) where "Inx" is the manufacturer prefix (e.g., Intel, Infineon, or a generic part), the details below for the standard diode series will help clarify why the part number might be misread.
Here is a detailed review of the 1N5189 Diode, including the pinout, specifications, and functional diagram.