MAX16821BATI+T

Product Overview

Category: Integrated Circuit (IC)
Use: LED Driver
Characteristics: High Efficiency, Wide Input Voltage Range, Dimming Control
Package: 28-TQFN (5x5)
Essence: This IC is designed to drive high-brightness LEDs efficiently and reliably.
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

Input Voltage Range: 4.75V to 40V
Output Current: Up to 1.5A
Switching Frequency: Adjustable up to 2MHz
Dimming Control: Analog/PWM
Thermal Shutdown: Yes
Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MAX16821BATI+T has a total of 28 pins. Here is the detailed pin configuration:

VIN: Input voltage
GND: Ground
VCC: Power supply for internal circuitry
EN: Enable pin
DIM: Dimming control input
FB: Feedback pin for output regulation
CS: Current sense input
BST: Boost capacitor connection
SW: Switch node connection
PGND: Power ground
AGND: Analog ground
LX: Inductor connection
COMP: Compensation pin
SS/TR: Soft-start/tracking pin
RT: External resistor for switching frequency adjustment
SYNC: Synchronization input
CLKOUT: Clock output
PWM: PWM dimming output
ADJ: Output current adjustment pin
OVLO: Overvoltage lockout pin
UVLO: Undervoltage lockout pin
OVP: Overvoltage protection pin
VREF: Reference voltage output
VSENSE: Voltage sense input
VOUT: Output voltage
NC: No connection
NC: No connection
NC: No connection

Functional Features

High efficiency LED driver with wide input voltage range
Integrated boost converter for driving high-brightness LEDs
Adjustable switching frequency for optimization
Dimming control options (analog or PWM)
Overvoltage and undervoltage lockout protection
Thermal shutdown for overtemperature protection
External resistor for switching frequency adjustment
Synchronization input for multiple ICs

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range allows for versatile applications - Dimming control provides flexibility in lighting design - Integrated protection features ensure reliability - Adjustable switching frequency for optimization

Disadvantages: - Limited maximum output current of 1.5A - Requires external components for proper operation - Relatively small package size may require careful PCB layout

Working Principles

The MAX16821BATI+T is a high-efficiency LED driver that utilizes a boost converter to drive high-brightness LEDs. It operates by converting the input voltage to a higher voltage level required by the LEDs. The integrated circuitry ensures efficient power transfer and regulates the output current to maintain consistent brightness.

The dimming control feature allows for adjusting the LED brightness using either an analog or PWM signal. This enables dynamic lighting effects and energy-saving capabilities.

The IC incorporates various protection mechanisms such as overvoltage lockout, undervoltage lockout, and thermal shutdown. These safeguards protect the LEDs and the driver from potential damage due to abnormal operating conditions.

Detailed Application Field Plans

The MAX16821BATI+T LED driver is suitable for a wide range of applications, including:

Automotive lighting: Provides efficient and reliable driving for LED headlights, taillights, and interior lighting.
Industrial lighting: Enables high-brightness LED illumination in factories, warehouses, and outdoor areas.
Architectural lighting: Supports dynamic lighting effects in buildings, bridges, and monuments.
Signage and display lighting: Drives LEDs in advertising signs, digital displays, and retail showcases.
Residential lighting: Offers energy-efficient lighting solutions for homes and apartments.

Detailed and Complete Alternative Models

MAX16821BATI+:
- Similar to MAX16821BATI+T but without tape and reel packaging.
- Suitable for prototyping and low-volume production.
MAX16821BATI/V+:
- Variant with extended temperature range (-40°C to +150°C).
- Designed for harsh environment applications.
MAX16821BATI/W+:
- Variant with wider input voltage range (4.75V to 60V).
- Ideal for applications with higher input voltage requirements.
MAX16821BATI

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MAX16821BATI+T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MAX16821BATI+T in technical solutions:

Q: What is the MAX16821BATI+T? A: The MAX16821BATI+T is a high-voltage, current-mode LED driver IC designed for automotive lighting applications.
Q: What is the input voltage range of the MAX16821BATI+T? A: The input voltage range of the MAX16821BATI+T is typically between 4.5V and 65V.
Q: What is the maximum output current of the MAX16821BATI+T? A: The MAX16821BATI+T can deliver a maximum output current of up to 1.5A.
Q: Can the MAX16821BATI+T be used for dimming LED lights? A: Yes, the MAX16821BATI+T supports PWM dimming control for LED lights.
Q: Is the MAX16821BATI+T suitable for automotive lighting applications? A: Yes, the MAX16821BATI+T is specifically designed for automotive lighting and meets the necessary requirements.
Q: Does the MAX16821BATI+T have built-in protection features? A: Yes, the MAX16821BATI+T includes various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.
Q: Can the MAX16821BATI+T operate in a wide temperature range? A: Yes, the MAX16821BATI+T has a wide operating temperature range of -40°C to +125°C.
Q: What type of package does the MAX16821BATI+T come in? A: The MAX16821BATI+T is available in a 16-pin TQFN package.
Q: Does the MAX16821BATI+T require any external components for operation? A: Yes, the MAX16821BATI+T requires external components such as an inductor, capacitors, and resistors for proper operation.
Q: Where can I find more information about the MAX16821BATI+T? A: You can find detailed information about the MAX16821BATI+T in the datasheet provided by the manufacturer or on their official website.