(Top View) ┌───────────┐ │ ┌─────┐ │ │ │ o │ │ <- Notch indicates pin 1 │ │ │ │ └─┤1 8├───┘ │2 7│ │3 6│ │4 5│ └─────┘
Before diving into the pinout diagram, it is essential to understand what the Inx In518 integrated circuit is. The Inx In518 is a or a comparator IC depending on the specific batch and manufacturer (often a generic or house-labeled version of standard 8-pin DIP op-amps like the LM358, LM393, or NJM4558).
This pin regulates the output voltage. Connect it to the center tap of an external resistor divider network connected between the output voltage and GND. 6 COMP / VOUT Inx In518 Ic Pinout Diagram
Connect to your output node using a voltage divider network if voltage regulation is required. Proper calibration ensures the IC maintains output stability under varying load conditions. Common Applications
Below is a comprehensive guide to the IN518 IC, including its pinout configuration, technical specifications, internal block functions, and standard application circuits. Technical Overview of the IN518 IC Connect it to the center tap of an
Always ensure the exposed pad under the chip is properly soldered to the ground plane.
Usually QFN-16 (4mm x 4mm, 0.5mm pitch) or QFN-40. Input Voltage: 2.7V - 5.5V (single-cell Li-ion compliant). Common Applications Below is a comprehensive guide to
A: The "white screen with sound" symptom is highly indicative of a T-CON board failure, but it doesn't guarantee the IN518 itself is faulty. The main timing controller (often marked IN2812A) can also cause this issue. Always measure the key output voltages (VGH, VGL, VAA) to pinpoint which IC has failed.
| Pin Number | Pin Name | Description | |------------|----------|------------------------------------------------| | 1 | OUT1 | Output of operational amplifier A | | 2 | IN1- | Inverting input of amplifier A | | 3 | IN1+ | Non-inverting input of amplifier A | | 4 | GND (V-) | Negative power supply or ground (single supply)| | 5 | IN2+ | Non-inverting input of amplifier B | | 6 | IN2- | Inverting input of amplifier B | | 7 | OUT2 | Output of operational amplifier B | | 8 | V+ | Positive power supply |
Located on the bottom of the chip. It must be soldered to a large copper area on the PCB connected to the GND plane to dissipate operational heat. Internal Block Diagram Logic
This is the lifeblood of the IC. It requires a stable DC voltage. In most monitor or laptop repair scenarios, this pin is tied to the main 12V or 19V rail.