LT3956EUHE#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: High Efficiency, Wide Input Voltage Range, Programmable Frequency, Dimming Control
• Package: 38-Lead 5mm × 7mm QFN
• Essence: Power Management IC for LED Lighting Applications
• Packaging/Quantity: Tape & Reel, 250 units per reel

Specifications

The LT3956EUHE#TRPBF is a high-performance LED driver IC designed for various lighting applications. It operates with a wide input voltage range of 4V to 60V, making it suitable for both automotive and industrial lighting systems. The IC offers high efficiency, programmable frequency, and dimming control features, enabling precise control over the connected LEDs.

Detailed Pin Configuration

The LT3956EUHE#TRPBF package consists of 38 leads arranged in a 5mm × 7mm QFN configuration. The pinout and their functions are as follows:

1. VIN: Input Voltage
2. VCC: Supply Voltage
3. GND: Ground
4. FB: Feedback Pin
5. RT/CLK: Timing Resistor/Clock Synchronization
6. SYNC/ADJ: External Synchronization/Adjustment
7. SS/TRK: Soft-Start/Tracking
8. PWM: Pulse Width Modulation
9. EN/UVLO: Enable/Input Undervoltage Lockout
10. ITH: Current Sense Threshold
11. LX: Switch Node
12. SW: Switch Node
13. SW: Switch Node
14. SW: Switch Node
15. SW: Switch Node
16. SW: Switch Node
17. SW: Switch Node
18. SW: Switch Node
19. SW: Switch Node
20. SW: Switch Node
21. SW: Switch Node
22. SW: Switch Node
23. SW: Switch Node
24. SW: Switch Node
25. SW: Switch Node
26. SW: Switch Node
27. SW: Switch Node
28. SW: Switch Node
29. SW: Switch Node
30. SW: Switch Node
31. SW: Switch Node
32. SW: Switch Node
33. SW: Switch Node
34. SW: Switch Node
35. SW: Switch Node
36. SW: Switch Node
37. SW: Switch Node
38. SW: Switch Node

Functional Features

The LT3956EUHE#TRPBF LED driver IC offers several functional features that enhance its performance and flexibility in LED lighting applications:

• High Efficiency: The IC utilizes a high-performance switching regulator design, ensuring efficient power conversion and minimizing energy losses.
• Wide Input Voltage Range: With an input voltage range of 4V to 60V, the IC can accommodate various power sources, making it suitable for a wide range of applications.
• Programmable Frequency: The frequency of the internal switching regulator can be programmed externally, allowing optimization for different LED configurations and operating conditions.
• Dimming Control: The IC supports various dimming control methods, including analog, PWM, and I²C, enabling precise brightness adjustment of the connected LEDs.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption and heat dissipation. - Wide input voltage range allows for versatile application scenarios. - Programmable frequency enables optimization for different LED configurations. - Dimming control options provide flexibility in adjusting brightness levels.

Disadvantages: - Limited to LED driver applications, not suitable for other types of circuits. - Requires careful thermal management due to high power handling capabilities.

Working Principles

The LT3956EUHE#TRPBF LED driver IC operates based on a switching regulator topology. It converts the input voltage to a regulated output voltage suitable for driving LEDs. The internal control circuitry ensures efficient power transfer and accurate current regulation. By adjusting the feedback voltage, the desired LED current can be set, allowing precise control over the brightness levels.

Detailed Application Field Plans

The LT3956EUHE#TRPBF LED driver IC finds applications in various lighting systems, including but not limited to:

1. Automotive Lighting: Headlights, taillights, interior lighting.
2. Industrial Lighting: High-bay lighting, street lighting, warehouse lighting.
3. Architectural Lighting: Accent lighting, façade lighting, landscape lighting.
4. Display Backlighting: LCD displays, signage, advertising boards.

Detailed and Complete Alternative Models

1. LT3763EUHE#PBF
2. LT3799EUHE#PBF
3. LT3957EUHE#TRPBF
4. LT3518EUHE#PBF
5. LT3496EUHE#P