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MAX16838AUP/V+T
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MAX16838AUP/V+T

Product Overview

Category

The MAX16838AUP/V+T belongs to the category of integrated circuits (ICs) specifically designed for LED lighting applications.

Use

This product is primarily used for driving high-brightness LEDs in various lighting systems, including automotive, architectural, and general illumination.

Characteristics

  • High efficiency: The MAX16838AUP/V+T offers high-efficiency LED current regulation, resulting in reduced power consumption and improved energy efficiency.
  • Wide input voltage range: It can operate with input voltages ranging from 4.5V to 40V, making it suitable for a wide range of applications.
  • Dimming control: The device supports both analog and PWM dimming control, allowing for flexible brightness adjustment.
  • Thermal protection: It incorporates thermal shutdown circuitry to prevent damage due to excessive temperature.

Package

The MAX16838AUP/V+T is available in a compact 20-pin TSSOP package, which ensures ease of integration into various lighting system designs.

Essence

The essence of the MAX16838AUP/V+T lies in its ability to efficiently drive high-brightness LEDs while providing flexibility in dimming control and ensuring thermal protection.

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
  • Dimming Control: Analog and PWM
  • Operating Temperature Range: -40°C to +125°C
  • Package Type: 20-pin TSSOP

Detailed Pin Configuration

The MAX16838AUP/V+T features the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. VCC: Supply voltage
  4. DIM: Dimming control input
  5. ADJ: Analog dimming control adjustment
  6. FB: Feedback pin for current regulation
  7. EN: Enable pin
  8. PGND: Power ground
  9. LX: Inductor connection
  10. SW: Switching node connection
  11. BST: Bootstrap capacitor connection
  12. VDD: Internal supply voltage
  13. CS: Current sense pin
  14. SS: Soft-start capacitor connection
  15. RT: External resistor for switching frequency control
  16. AGND: Analog ground
  17. COMP: Compensation pin for stability control
  18. PWM: PWM dimming control input
  19. OVP: Overvoltage protection pin
  20. UVLO: Undervoltage lockout pin

Functional Features

  • High-efficiency LED current regulation
  • Wide input voltage range for versatile applications
  • Support for both analog and PWM dimming control
  • Thermal shutdown protection to prevent overheating

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption
  • Wide input voltage range allows for compatibility with various systems
  • Flexibility in dimming control enables precise brightness adjustment
  • Thermal protection ensures device longevity and reliability

Disadvantages

  • Limited output current range may not be suitable for high-power LED applications
  • Requires external components for proper operation

Working Principles

The MAX16838AUP/V+T operates as a constant current LED driver. It regulates the LED current by adjusting the duty cycle of an internal switch-mode controller. The device uses feedback from the LED string to maintain a constant current, ensuring consistent brightness levels.

Detailed Application Field Plans

The MAX16838AUP/V+T finds extensive application in the following fields:

  1. Automotive lighting systems: Used for headlights, taillights, and interior lighting.
  2. Architectural lighting: Suitable for accent lighting, wall washing, and facade illumination.
  3. General illumination: Used in residential, commercial, and industrial lighting applications.

Detailed and Complete Alternative Models

  1. MAX16838AUP/V: Similar to the MAX16838AUP/V+T but without the thermal shutdown protection feature.
  2. MAX16838BUP/V+T: A variant with higher output current capability (up to 3A) for more demanding LED applications.
  3. MAX16838CUP/V+T: Offers additional features such as fault detection and protection mechanisms.

These alternative models provide options for different performance requirements and system designs.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi MAX16838AUP/V+T dalam penyelesaian teknikal

  1. What is the maximum input voltage for MAX16838AUP/V+T?
    - The maximum input voltage for MAX16838AUP/V+T is 28V.

  2. What is the typical operating frequency of MAX16838AUP/V+T?
    - The typical operating frequency of MAX16838AUP/V+T is 2.2MHz.

  3. Can MAX16838AUP/V+T be used in automotive lighting applications?
    - Yes, MAX16838AUP/V+T is suitable for automotive lighting applications.

  4. What is the maximum output current of MAX16838AUP/V+T?
    - The maximum output current of MAX16838AUP/V+T is 1.5A.

  5. Is MAX16838AUP/V+T compatible with dimming control?
    - Yes, MAX16838AUP/V+T supports analog and PWM dimming control.

  6. What is the thermal resistance of MAX16838AUP/V+T?
    - The thermal resistance of MAX16838AUP/V+T is 40°C/W.

  7. Can MAX16838AUP/V+T be used in LED backlighting applications?
    - Yes, MAX16838AUP/V+T is suitable for LED backlighting applications.

  8. What is the recommended input capacitor value for MAX16838AUP/V+T?
    - The recommended input capacitor value for MAX16838AUP/V+T is 10µF.

  9. Does MAX16838AUP/V+T have overvoltage protection?
    - Yes, MAX16838AUP/V+T features overvoltage protection.

  10. What is the operating temperature range of MAX16838AUP/V+T?
    - The operating temperature range of MAX16838AUP/V+T is -40°C to +125°C.