MAX16834ATP+T

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX16834ATP+T is a high-brightness LED driver designed for automotive lighting applications. It provides a compact and efficient solution for driving multiple LEDs in series or parallel configurations.

Characteristics: - High efficiency - Wide input voltage range - Adjustable output current - Overvoltage protection - Thermal shutdown protection

Package: The MAX16834ATP+T is available in a 20-pin TQFN package, which offers excellent thermal performance and compact size.

Essence: This LED driver integrates a boost converter and a current regulator to efficiently drive LEDs with constant current. It ensures stable and reliable operation of the LEDs, even under varying input voltages and load conditions.

Packaging/Quantity: The MAX16834ATP+T is typically sold in reels of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Current Range: Up to 1.5A
• Switching Frequency: 200kHz to 2MHz
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MAX16834ATP+T has a total of 20 pins. Here is the detailed pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. FB: Feedback pin for regulating output current
4. EN: Enable pin for turning on/off the device
5. SS/TRI: Soft-start/tri-state control pin
6. VCC: Supply voltage for internal circuitry
7. PGND: Power ground
8. LX: Inductor connection pin
9. BST: Boost capacitor connection pin
10. CS: Current sense pin
11. ADJ: Output current adjustment pin
12. VREF: Reference voltage output
13. PWM: Pulse-width modulation input for dimming control
14. DIM: Analog dimming control input
15. OVP: Overvoltage protection threshold setting pin
16. TSD: Thermal shutdown pin
17. FAULT: Fault indication output
18. NC: No connection
19. NC: No connection
20. NC: No connection

Functional Features

• High-efficiency boost converter for driving LEDs with constant current
• Wide input voltage range allows operation in automotive systems
• Adjustable output current enables flexibility in LED configurations
• Overvoltage protection safeguards the LEDs from excessive voltage
• Thermal shutdown protection prevents overheating of the device

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption - Wide input voltage range ensures compatibility with various automotive systems - Adjustable output current allows customization of LED configurations - Overvoltage protection enhances the reliability of the LEDs - Thermal shutdown protection prevents damage due to overheating

Disadvantages: - Limited maximum output current may not be suitable for high-power LED applications - Requires external components for proper operation

Working Principles

The MAX16834ATP+T operates by converting the input voltage to a higher voltage using a boost converter. The boosted voltage is then regulated to provide a constant current to drive the LEDs. The feedback mechanism adjusts the duty cycle of the boost converter to maintain the desired output current. The device also incorporates overvoltage protection and thermal shutdown features to ensure safe operation.

Detailed Application Field Plans

The MAX16834ATP+T is primarily designed for automotive lighting applications, including:

1. Headlights
2. Daytime running lights (DRL)
3. Fog lights
4. Tail lights
5. Interior lighting

Its wide input voltage range, high efficiency, and compact package make it suitable for various automotive lighting systems.

Detailed and Complete Alternative Models

1. MAX16834ATP/V+: Similar to MAX16834ATP+T but available in a 20-pin TQFN-EP package.
2. MAX16834ATP/V+T: Similar to MAX16834ATP+T but with an extended temperature range (-40°C to +150°C).
3. MAX16834ATP/V+TG36: Similar to MAX16834ATP+T but with an extended temperature range and a 36-pin TQFN package.

These alternative models offer similar functionality and can be considered as substitutes based on specific application requirements.

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