LM3409HVMY

Name: LM3409HVMY
Rating: 4.5 (10 reviews)

The LM3409HVMY is a high-voltage LED driver chip designed for efficient control of LED lighting systems

7,631 Effective Inventory

LM3409HVMY

Effective Inventory7,631

The LM3409HVMY is a high-voltage LED driver chip designed for efficient control of LED lighting systems

Manufacturer Part # : LM3409HVMY
Package/Case: MSOP10
Brand: Texas Instruments
Product Categories : Drivers, Receivers, Transceivers

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LM3409HVMY DataSheet

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Details

The LM3409HVMY is a high-voltage buck LED driver IC manufactured by Texas Instruments. It is designed specifically for driving LEDs with a constant current, making it suitable for various lighting applications. Operating with input voltages ranging from 4.5V to 60V, it can handle a wide range of power supply sources. The LM3409HVMY incorporates a high-side N-channel MOSFET for efficient switching, allowing it to deliver up to 1.5A of continuous LED current. It features adjustable LED current control through an external resistor, providing flexibility in designing lighting systems with different brightness levels. Additionally, it offers protection features such as thermal shutdown and overcurrent protection, enhancing reliability and safety in LED lighting applications. With its compact package and robust performance, the LM3409HVMY facilitates the design of efficient and reliable LED lighting solutions for various industrial and automotive applications

Key Features

Wide input voltage range: 4.5V to 75V
High efficiency synchronous buck controller
Adjustable switching frequency up to 2MHz
Integrated boost diode
Low dropout voltage
Programmable UVLO threshold

Application

LED driver for automotive lighting applications
High voltage industrial lighting
Architectural and decorative lighting
Backlighting for TVs and monitors
Street lighting
Emergency lighting
Solar powered lighting systems
Signage and displays
General purpose LED driver applications

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category !	LED Lighting Drivers	Number of Outputs	1 Output
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature !	+ 125 C
Brand	Texas Instruments	Number of Channels	1 Channel
Product	PFET Buck Controllers	Product Type !	LED Lighting Drivers
Subcategory	Driver ICs

FAQs

What is LM3409HVMY?

The LM3409HVMY is a high voltage, non-synchronous buck controller designed by Texas Instruments. It is specifically designed to drive high power LEDs, making it ideal for use in LED lighting applications such as automotive, industrial, and architectural lighting.

How Does LM3409HVMY Work?

The LM3409HVMY works by controlling the current flowing through high power LEDs to ensure optimal brightness and efficiency. It utilizes a non-synchronous buck topology to regulate the LED current and voltage, allowing for precise control and dimming capabilities. The controller features a wide input voltage range, making it suitable for various LED driver applications.

How Many Pins does LM3409HVMY have and What are the Functions of the Pinout Configuration?

The LM3409HVMY is housed in a 10-pin HMSOP (Exposed Pad) package. The pinout configuration includes:

VCC: Supply voltage input pin.
COMP, FB, RT/CLK: Compensation, feedback, and external resistor connection pins for control loop compensation and frequency setting.
EN, DIM: Enable and dimming control input pins for on/off and dimming control of the LED current.
PGND, AGND: Power and analog ground pins, respectively.
SW: Switching node connection for the power MOSFET.
DRV: Gate driver output for driving an external NMOS power switch.

What are the Pros and Cons of LM3409HVMY?

Pros:

High Voltage Operation: Designed for high voltage LED driver applications.
Efficient LED Control: Provides precise control of LED current for optimal brightness and efficiency.
Flexible Dimming Control: Supports dimming functionality for LED brightness adjustment.
Wide Input Voltage Range: Suitable for various LED driver designs with different input voltage requirements.
Compact Package: The 10-pin HMSOP package offers a space-efficient solution for LED driver designs.

Cons:

External Components: May require external components such as inductors and diodes for complete LED driver implementation.
Complexity: Careful attention to layout and thermal considerations is necessary for high power LED driver designs.
Thermal Management: High power dissipation may require additional thermal management considerations in the LED driver design.

Are There Any Equivalents/Alternatives to LM3409HVMY for Recommendation?

The LM3409HVMY/NOPB is an alternate package option for the LM3409HVMY.
Alternatives to the LM3409HVMY include the LT3957 from Analog Devices and the AL8807 from Diodes Incorporated.

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