MAX16823ATE+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX16823ATE+ belongs to the category of integrated circuits (ICs) specifically designed for LED driver applications.

Use

This product is primarily used for driving and controlling LEDs in various lighting applications, such as automotive lighting, architectural lighting, and general illumination.

Characteristics

• The MAX16823ATE+ is a high-efficiency, synchronous step-down constant current LED driver.
• It operates with a wide input voltage range, making it suitable for different power supply configurations.
• This IC offers precise current regulation, ensuring consistent brightness and color accuracy of the LEDs.
• It incorporates advanced protection features like overvoltage, overcurrent, and thermal shutdown, enhancing the reliability and safety of the LED system.

Package

The MAX16823ATE+ is available in a small 16-pin TQFN package, which provides compactness and ease of integration into various lighting fixtures.

Essence

The essence of the MAX16823ATE+ lies in its ability to efficiently drive and control LEDs, enabling optimal performance and energy savings in lighting applications.

Packaging/Quantity

This product is typically supplied in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Current Range: Up to 1.5A
• Switching Frequency: Adjustable up to 2MHz
• Dimming Control: Analog/PWM
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MAX16823ATE+ features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for current regulation
4. EN: Enable pin for turning the device on/off
5. DIM: Dimming control pin (analog or PWM)
6. VSET: Voltage reference for setting the output current
7. LX: Switching node connection for the inductor
8. PGND: Power ground pin
9. BST: Bootstrap capacitor connection for high-side MOSFET
10. SS/TR: Soft-start and tracking pin
11. COMP: Compensation pin for stability optimization
12. CS: Current sense pin
13. AGND: Analog ground pin
14. VCC: Supply voltage pin
15. VOUT: Output voltage pin
16. ADJ: Adjust pin for setting the LED current

Functional Features

• High-efficiency step-down LED driver with synchronous rectification.
• Precise current regulation for consistent LED brightness and color accuracy.
• Wide input voltage range allows flexibility in power supply configurations.
• Adjustable switching frequency for optimal performance and EMI control.
• Dimming control options (analog or PWM) for brightness adjustment.
• Advanced protection features ensure system reliability and safety.

Advantages and Disadvantages

Advantages

• High efficiency leads to energy savings and reduced heat dissipation.
• Precise current regulation ensures consistent LED performance.
• Wide input voltage range enables versatile application scenarios.
• Compact package facilitates integration into various lighting fixtures.
• Advanced protection features enhance system reliability.

Disadvantages

• Limited maximum output current may not be suitable for high-power LED applications.
• Requires external components for proper operation, increasing overall system complexity.

Working Principles

The MAX16823ATE+ operates as a step-down converter to drive LEDs with a constant current. It utilizes a high-side and low-side MOSFET pair to regulate the LED current. The feedback loop compares the sensed current with a reference voltage, adjusting the duty cycle of the MOSFETs to maintain the desired current level. The dimming control signal modulates the duty cycle, allowing brightness adjustment. The IC incorporates protection mechanisms to safeguard against overvoltage, overcurrent, and thermal issues.

Detailed Application Field Plans

The MAX16823ATE+ finds extensive application in various lighting fields, including:

1. Automotive Lighting: Used for headlights, taillights, and interior lighting in vehicles.
2. Architectural Lighting: Enables precise control and color mixing in architectural illumination.
3. General Illumination: Suitable for residential, commercial, and industrial lighting applications.

Detailed and Complete Alternative Models

1. MAX16823BATE+: Similar to MAX16823ATE+, but with a higher maximum output current of 3A.
2. MAX16823CATE+: Offers additional features like fault detection and reporting capabilities.
3. MAX16823DATE+: Designed for automotive applications with enhanced EMI performance.

These alternative models provide options with varying specifications and features to cater to different LED driver requirements.

In conclusion, the MAX16823ATE+ is a high-efficiency, synchronous step-down LED driver IC that offers precise current regulation, advanced protection features, and versatile application possibilities. Its compact package and wide input