In the realm of electronics, precise component identification is the bridge between a successful design and a failed prototype. Among the myriad of semiconductor components, diodes often present a unique challenge due to their small size and varying marking conventions. A common search term that arises during troubleshooting or inventory management is "INX IN518" or "1N518 IC pinout diagram top."
While the designation "IC" (Integrated Circuit) is frequently used in search queries, the 1N518 is fundamentally a discrete semiconductor diode, specifically a small-signal switching diode. This article provides an extensive, "top-down" look at the 1N518, clarifying its identification, explaining the "pinout" from the top view, detailing its technical specifications, and offering guidance on how to integrate it effectively into your circuits.
When looking at the Top of the IC (the side with the writing on it):
Unlike a chip which might have a "Pin 1" indicator like a dot or notch, the diode identifies its outputs via this band.
Place components near pins on same side as IC (top layer):
| Pin | Nearby Component | Value | |-----|--------------------------|----------| | 1 | Capacitor to GND | 0.1µF | | 2 | Capacitor to GND | 1.0µF | | 8 | Via to ground plane | – | | 33 | RC filter (10Ω + 4.7µF) | to AVDD | | 34 | Direct via to analog GND | – | | 36 | Cap to AGND | 2.2µF |
The INX IN518 is a versatile, compact LDO regulator typically found in portable electronics. Understanding its pinout diagram and top marking is essential for successful integration or repair. To recap: inx in518 ic pinout diagram top
By using this guide, you can confidently work with the INX IN518 in your next power supply design or repair job.
Further Reading & References:
Have questions or corrections? Leave a comment below with your IN518 top marking and measured voltages to help build a community cross-reference database.
(also often marked simply as ) is a 6-pin SMD power management or DC-DC step-down converter IC, frequently used in the T-CON boards of LCD and LED televisions, such as those from Chi Mei Innolux (INX). Pinout Configuration (Top View)
Based on common 6-pin SMD power IC configurations used in these panels: Pin 1: VIN – Main input voltage (typically 12V or 5V). Pin 2: GND – Ground connection. Pin 3: EN / ON – Enable pin; used to turn the IC on or off. Pin 4: FB / ADJ
– Feedback pin; used to set or monitor the output voltage. Pin 5: LX / SW – Switching output; connects to the external inductor. Pin 6: BST / VCC By using this guide, you can confidently work
– Bootstrap pin or internal supply pin for the gate driver. Typical Application
In TV repair, the IN518 is often part of the circuit that generates low-voltage rails like (-5V to -7V) or
(+20V to +30V) for the display panel. If a TV has a "no display" or "gray screen" issue but the backlight is working, this IC or its surrounding capacitors are common failure points. Repair & Identification Tips Marking Code:
You may find it labelled with a shorthand code on the chip surface. Detailed cross-references for these 6-pin chips can often be found on technical sharing sites like Substitutes:
Depending on the specific circuit parameters (voltage/current), similar 6-pin converters like the AP34063 or certain SOT-23-6 regulators may serve as alternatives, though direct replacement is always recommended to match the exact switching frequency. Are you troubleshooting a specific TV model power issue like a missing VGL/VGH voltage? Identifying 6-Pin SMD Power ICs | PDF - Scribd
Vous aimerez peut-être aussi * 6-Pin SMD ICs for LED/LCD Repair. ... * 6 Pin SMD ICs for LED/LCD TVs. ... * 6-Pin SMD ICs for LED/ 6-Pin SMD ICs for LED/LCD TVs | PDF | Computing - Scribd Further Reading & References:
However, "inx" is a very common typo for "IX" (IXYS Corporation) or "IN" (Fairchild/ON Semiconductor), and the part number "518" fits perfectly with the IXYS naming convention.
It is highly likely you are looking for the IXYS IX518 or a similar 8-pin surface mount component.
Here is the deep guide for the IXYS IX518 (and how to read similar 8-pin ICs), assuming the "INX" was a typo for "IX".
If the IX518 you have is an 8-pin package (common for dual MOSFETs or complex drivers), the pinout is as follows:
Top View
___________
/ \
| o o |
| 1 8 |
| |
| 2 7 |
| |
| 3 6 |
| |
| 4 5 |
|_____________|
Typical IXYS IX518 Pin Functions (Example Configuration):