LM3432SQE/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: High Efficiency, Wide Input Voltage Range, Adjustable Output Current, Dimming Control
• Package: 16-Pin WQFN
• Essence: This IC is designed to drive high-power LEDs efficiently and reliably.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 75V
• Output Current Range: Up to 3A
• Switching Frequency: 200kHz to 1MHz
• Dimming Control: Analog/PWM
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3432SQE/NOPB has the following pin configuration:

1. VCC
2. GND
3. EN
4. DIM
5. FB
6. CS
7. IADJ
8. VIN
9. SW
10. SW
11. SW
12. SW
13. SW
14. SW
15. SW
16. SW

Functional Features

• High efficiency conversion of input voltage to output current for driving LEDs.
• Wide input voltage range allows for versatile applications.
• Adjustable output current enables flexibility in LED brightness control.
• Dimming control options through analog or PWM signals.
• Over-temperature protection and fault detection mechanisms ensure safe operation.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption. - Wide input voltage range accommodates various power sources. - Adjustable output current allows for precise LED brightness control. - Dimming control options provide flexibility in lighting applications. - Fault detection mechanisms enhance system reliability.

Disadvantages: - Limited maximum output current may not be suitable for high-power LED applications. - Complex pin configuration may require careful PCB layout design.

Working Principles

The LM3432SQE/NOPB is a buck LED driver IC that utilizes a switching regulator to efficiently drive high-power LEDs. It operates by converting the input voltage to a regulated output current, which is then supplied to the LEDs. The IC incorporates various protection features to ensure safe operation and fault detection.

Detailed Application Field Plans

The LM3432SQE/NOPB is commonly used in the following applications:

1. General lighting systems
2. Automotive lighting
3. Signage and display lighting
4. Architectural lighting
5. Industrial lighting

Detailed and Complete Alternative Models

1. LM3409HV/NOPB
2. LM3410XMF/NOPB
3. LM3421Q1MH/NOPB
4. LM3447TMEV/NOPB
5. LM3450AQM/NOPB

These alternative models offer similar functionality and can be considered as substitutes for the LM3432SQE/NOPB.

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