Overview
The LM3402MM, produced by Texas Instruments, is a highly efficient DC/DC regulator designed specifically for driving high-power LEDs. This component is part of the LM3402 series and is widely recognized for its compact size and robust performance. Marketed towards applications requiring precise current control, the LM3402MM is ideal for automotive, industrial, and general lighting solutions. Its key selling points include a high input voltage range, integrated MOSFET, and advanced features such as PWM dimming and thermal shutdown protection.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Pin Count | 8 | Pin | |
| Output Current | 500 | mA | |
| Type | DC/DC Regulator | ||
| Topology | Buck | ||
| Installation Type | SMT | ||
| Supply Voltage | 42 | V | |
| Internal Switch | Yes | ||
| Height | 1.10 | mm | |
| Dimensions | 3.00 x 3.00 | mm | |
| Dimming | PWM | ||
| Operating Temperature | -40 to +125 | °C | |
| Lead-Free | Yes | ||
| Output Voltage | 40 | V | |
| Package/Case | VSSOP8_3X3MM |
Key Features
- Integrated 0.5A N-channel MOSFET for efficient current control.
- Wide input voltage range (6V to 42V) for versatile applications.
- PWM dimming capability for precise brightness adjustment.
- Thermal shutdown protection ensures safe operation under high temperatures.
- Compact VSSOP-8 package for space-constrained designs.
Applications
The LM3402MM is extensively used in various lighting applications, including automotive lighting, industrial lighting, and general illumination. Its ability to provide constant current makes it suitable for driving high-power LEDs in both series and parallel configurations. Additionally, its robust design and advanced features make it a reliable choice for applications requiring durability and efficiency.
Q & A
What is the maximum output current of the LM3402MM?
The maximum output current is 500mA.
What is the input voltage range for the LM3402MM?
The input voltage range is 6V to 42V.
Does the LM3402MM support PWM dimming?
Yes, it supports PWM dimming for precise brightness control.
What is the operating temperature range of the LM3402MM?
The operating temperature range is -40°C to +125°C.
Is the LM3402MM lead-free?
Yes, it is lead-free and RoHS compliant.
What is the package type of the LM3402MM?
It comes in a VSSOP-8 package.
Does the LM3402MM have thermal shutdown protection?
Yes, it includes thermal shutdown protection to prevent overheating.
What is the typical application of the LM3402MM?
It is typically used in LED driving applications for automotive, industrial, and general lighting.
What is the topology of the LM3402MM?
It uses a buck topology for efficient voltage regulation.
Is the LM3402MM suitable for high-power LED applications?
Yes, it is designed specifically for driving high-power LEDs with constant current.
