Maxim Integrated
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MAX7319AEE+
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MAX7319AEE+ Encyclopedia Entry

Product Overview

The MAX7319AEE+ belongs to the category of I2C-interfaced peripherals and is commonly used as an LED driver. It is characterized by its high integration, low power consumption, and ease of use. The package type for MAX7319AEE+ is a 16-pin QSOP, and it is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

  • Input Voltage Range: 2.3V to 5.5V
  • Number of Channels: 16
  • Output Current: 25mA per channel
  • Interface: I2C-compatible serial interface

Detailed Pin Configuration

The detailed pin configuration for MAX7319AEE+ is as follows: 1. SDA (Serial Data) 2. SCL (Serial Clock) 3. GND (Ground) 4. VCC (Power Supply)

Functional Features

  • Individual LED brightness control
  • PWM dimming control
  • Software programmable blink rates
  • Power-on reset to off or on state
  • Open-drain outputs with 25mA sink capability

Advantages and Disadvantages

Advantages

  • High integration reduces external component count
  • Low power consumption extends battery life
  • Flexible control options through I2C interface

Disadvantages

  • Limited output current per channel may not be suitable for high-power applications
  • Requires understanding of I2C communication protocol for effective usage

Working Principles

The MAX7319AEE+ operates by receiving commands and data through the I2C interface from a microcontroller or other master device. It then processes this information to control the brightness and state of the connected LEDs.

Detailed Application Field Plans

The MAX7319AEE+ is well-suited for various applications including: - LED displays - Backlighting systems - Indicator lights - Decorative lighting

Detailed and Complete Alternative Models

Some alternative models to MAX7319AEE+ include: - MAX7317AEE+: 16-channel constant-current LED driver with similar features - TLC59283: 16-channel constant-current LED sink driver with integrated PWM

In conclusion, the MAX7319AEE+ offers a highly integrated solution for controlling multiple LEDs through an I2C interface, making it suitable for a wide range of lighting applications.

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  1. What is the MAX7319AEE+?

    • The MAX7319AEE+ is an I2C-interfaced 16-port GPIO expander with LED driver.

  2. What is the maximum voltage and current rating for the MAX7319AEE+?

    • The MAX7319AEE+ has a maximum voltage rating of 5.5V and a maximum current rating of 25mA per port.

  3. How many LEDs can be driven by the MAX7319AEE+?

    • The MAX7319AEE+ can drive up to 16 LEDs directly.

  4. What is the communication interface used by the MAX7319AEE+?

    • The MAX7319AEE+ uses the I2C communication interface.

  5. Can the MAX7319AEE+ be cascaded to control more than 16 ports?

    • Yes, multiple MAX7319AEE+ devices can be cascaded together to control more than 16 ports.

  6. What are the typical applications of the MAX7319AEE+?

    • Typical applications include LED displays, keypad scanning, and general-purpose I/O expansion.

  7. Does the MAX7319AEE+ have built-in debounce circuitry for input ports?

    • Yes, the MAX7319AEE+ features built-in debounce circuitry for input ports.

  8. What is the power supply range for the MAX7319AEE+?

    • The power supply range for the MAX7319AEE+ is 2.3V to 5.5V.

  9. Is there a thermal shutdown feature in the MAX7319AEE+?

    • Yes, the MAX7319AEE+ includes a thermal shutdown feature to protect the device from overheating.

  10. Are there any evaluation kits available for the MAX7319AEE+?

    • Yes, Maxim Integrated offers evaluation kits for the MAX7319AEE+ to facilitate testing and development.