---
title: "X4 Power supply input"
slug: "x4-power-supply-input"
updated: 2024-07-04T14:24:54Z
published: 2024-07-04T14:24:54Z
canonical: "docs-linescan.alliedvision.com/x4-power-supply-input"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs-linescan.alliedvision.com/llms.txt
> Use this file to discover all available pages before exploring further.

# X4 Power supply input

The following connector is required:

- Würth Elektronik 691 317 710 004

The following counterpart is required:

- Würth Elektronik 691 352 710 004

| pin | name | description |
| --- | --- | --- |
| 1 | V_IN | power supply voltage |
| 2 | V_IN | power supply voltage |
| 3 | GND_IN | 0 V (Ground) |
| 4 | GND_IN | 0 V (Ground) |

The pins 1,2 and 3,4 are connected in the inside of the XLC4 control unit. For low current applications a single power supply pair can be used.

#### Supply voltage

| name | description | min | nominal | max |
| --- | --- | --- | --- | --- |
| V_IN | supply voltage | 12.6 V |  | 26.4 V |
| V_IN | supply voltage with Corona II | 21.6 V |  | 26.4 V |
| V_ANODE – V_IN | voltage difference (output to input) | 5.0 V | ≥ 7.0 V | 25.0 V |

For optimized performance of the XLC4 control unit adapt the power supply voltage to the properties of the connected LED modules.

The input current depends on the following values:

- V_IN
- voltage of the connected LED modules
- current of the connected LED modules
- internal consumption
- current at VOUT

Internal consumption:

- < 100 mA @ 26.8 V
- < 130 mA @ 12.0 V

#### Voltage difference

A smaller voltage difference between V_ANODE and V_IN results in much lower internal power dissipation and in higher efficiency.

![](https://cdn.document360.io/eca58697-9c2f-461e-9f0a-e6205b74b693/Images/Documentation/image(122).png)Efficiency of the switching regulator of the XLC4Measured with Corona II, channel current = 1000 mA, V_ANODE = 38 V

#### Supply current

Input current IInput = 20 A

The output current of the power supply depends on the following parameters:

- LED module type
- number of connected LED modules
- maximum used output current of the XLC4 control unit

> [!NOTE]
> NOTE - Choosing correct supply current
> 
> Define the used channels and the desired output current.

| used LED output channels | 1 | 2 | 3 | 4 |
| --- | --- | --- | --- | --- |
| maximum used output current [A] | power supply output current [A] |
| typical | max | typical | max | typical | max | typical | max |
| 0.2 | 0.4 | 0.5 | 0.7 | 0.9 | 0.9 | 1.2 | 1.2 | 1.6 |
| 0.4 | 0.7 | 0.9 | 1.3 | 1.7 | 1.9 | 2.4 | 2.5 | 3.2 |
| 0.6 | 1.0 | 1.3 | 2.0 | 2.5 | 2.9 | 3.7 | 3.8 | 4.9 |
| 0.8 | 1.4 | 1.8 | 2.7 | 3.4 | 3.9 | 5.1 | 5.2 | 6.7 |
| 1.0 | 1.8 | 2.2 | 3.4 | 4.3 | 5.0 | 6.4 | 6.6 | 8.5 |
| 1.2 | 2.1 | 2.7 | 4.1 | 5.3 | 6.1 | 7.9 | 8.0 | 10.5 |
| 1.4 | 2.5 | 3.2 | 4.8 | 6.3 | 7.2 | 9.3 | 9.6 | 12.4 |
| 1.6 | 2.9 | 3.7 | 5.7 | 7.3 | 8.5 | 10.9 | 11.3 | 14.4 |
| 1.8 | 3.3 | 4.2 | 6.5 | 8.3 | 9.7 | 12.4 | 12.9 | 16.5 |

Parameters for typical power supply output current:

- typical forward voltage values for the LED module
- input voltage = 24 V

Parameters for maximum power supply output current:

- maximum forward voltage for the LED module
- input voltage = 21.6 V