CAT5401YI50

Product Overview

Category: Integrated Circuit (IC)

Use: CAT5401YI50 is a digital potentiometer IC used for controlling resistance in electronic circuits.

Characteristics: - Digital control interface - Wide resistance range - Low power consumption - High resolution - Small package size

Package: The CAT5401YI50 is available in a small surface-mount package, making it suitable for compact electronic devices.

Essence: The CAT5401YI50 is an essential component in electronic circuits that require variable resistance control.

Packaging/Quantity: The IC is typically sold in reels or tubes containing multiple units.

Specifications

• Resistance Range: 0Ω to 50kΩ
• Resolution: 256 steps
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial (I2C)

Pin Configuration

The CAT5401YI50 has the following pin configuration:

┌───┬───┬───┬───┬───┐ │ 1 │ 2 │ 3 │ 4 │ 5 │ ├───┼───┼───┼───┼───┤ │ A │ B │ V │ G │ S │ └───┴───┴───┴───┴───┘

• Pin 1 (A): Connects to the serial data line (SDA) of the microcontroller.
• Pin 2 (B): Connects to the serial clock line (SCL) of the microcontroller.
• Pin 3 (V): Connects to the positive supply voltage.
• Pin 4 (G): Connects to the ground.
• Pin 5 (S): Connects to the wiper terminal of the potentiometer.

Functional Features

• Digital Control: The CAT5401YI50 can be controlled digitally using an I2C interface, allowing for precise and convenient resistance adjustments.
• Non-Volatile Memory: The IC retains its resistance setting even when power is removed, ensuring that the desired resistance value is maintained upon power-up.
• Low Power Consumption: The CAT5401YI50 consumes minimal power during operation, making it suitable for battery-powered devices.
• High Resolution: With 256 steps of resolution, the IC provides fine-grained control over the resistance value.
• Wide Resistance Range: The CAT5401YI50 offers a resistance range from 0Ω to 50kΩ, providing flexibility in various circuit applications.

Advantages and Disadvantages

Advantages: - Precise resistance control - Compact size - Non-volatile memory - Low power consumption - Wide resistance range

Disadvantages: - Limited maximum resistance value (50kΩ) - Requires an I2C interface for control

Working Principles

The CAT5401YI50 utilizes digital potentiometer technology to control resistance. It consists of a series of resistive elements connected in a ladder configuration. By adjusting the position of the wiper terminal, the effective resistance between the wiper and other terminals can be varied. This adjustment is achieved through digital control signals received via the I2C interface.

Application Field Plans

The CAT5401YI50 finds applications in various electronic systems, including: 1. Audio equipment: Volume control, tone adjustment 2. Display devices: Brightness control 3. Industrial automation: Variable resistance control in control systems 4. Test and measurement equipment: Calibration and fine-tuning

Alternative Models

1. CAT5401YI25: Similar to CAT5401YI50, but with a maximum resistance value of 25kΩ.
2. CAT5401YI100: Similar to CAT5401YI50, but with a maximum resistance value of 100kΩ.
3. CAT5401YI256: Similar to CAT5401YI50, but with 256 steps of resolution.

These alternative models provide options for different resistance ranges and resolutions, catering to specific circuit requirements.

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