ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 14HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Type：DC DC Regulator
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：6V
- Voltage - Supply (Max)：42V
- Voltage - Output：-
- Current - Output / Channel：1.5A
- Frequency：10kHz ~ 1MHz
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：14-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：14-HTSSOP
- Grade：Automotive
- Qualification：-
Download product information
Overview
The LM3406MH/NOPB is a constant current LED driver IC from Texas Instruments, utilizing a buck topology. It supports an input voltage range of 6 V to 42 V and delivers up to 1.5 A output current per channel. The device operates at a programmable switching frequency between 10 kHz and 1 MHz. It features PWM dimming capabilities and is housed in a 14-lead HTSSOP package with exposed pad for thermal management. The component functions within a junction temperature range of -40°C to +125°C.
Feature Summary
- Integrates internal power switch for simplified circuit design
- Supports precise PWM dimming control for brightness regulation
- Provides constant current regulation for stable LED performance
Applications
- Automotive lighting systems
- General illumination applications
- High brightness LED drivers
Procurement Notes
Verify the specific suffix 'MH' corresponds to the HTSSOP-14 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to procurement. Ensure the ordering part number matches the exact tape-and-reel or tube packaging requirements specified in the latest datasheet revision to avoid assembly discrepancies.
Selection Notes
Select this component for designs requiring a single-channel buck converter with integrated power switch. It is suitable for applications needing adjustable switching frequencies to optimize efficiency or reduce EMI. Consider the 42 V maximum input limit when choosing over higher voltage variants like the LM3406HV series. Evaluate thermal performance based on the HTSSOP package's heat dissipation capabilities relative to the expected load current.
Part Context
This device belongs to the LM3406 family of LED drivers designed for high-efficiency constant current regulation. It serves as a core component in modern LED lighting architectures, replacing discrete solutions. The family includes variants such as the LM3406HV for higher voltage inputs and automotive-qualified versions, providing scalable options for diverse lighting requirements across industrial and consumer sectors.
Replacement Considerations
The LM3406MHX/NOPB is the reel-pack equivalent of this tube-packaged component. For higher input voltage requirements, consider the LM3406HVQMHXQ1 for automotive applications. Direct pin-compatible replacements should be verified against official substitution lists to ensure electrical parameter compatibility.
