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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)：75V
- 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：-
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Overview
The LM3406HVMH/NOPB is a high-voltage LED driver IC from Texas Instruments, designed for constant current regulation in buck converter topologies. It supports an input voltage range of 6 V to 75 V and delivers up to 1.5 A output current. The device operates at switching frequencies between 10 kHz and 1 MHz, with adjustable output voltage capabilities. It features PWM dimming and two-wire interface support, housed in a 14-lead HTSSOP package. Operating temperatures span from -40°C to +125°C.
Feature Summary
- Supports PWM dimming and two-wire interface control for precise brightness adjustment
- Provides constant current regulation suitable for power LED applications
- Operates within a wide input voltage range of 6 V to 75 V
Applications
- Power LED lighting systems
- Automotive illumination
- General solid-state lighting
Procurement Notes
Verify the specific suffix 'HVMH' against official Texas Instruments documentation to confirm pinout and thermal characteristics. Ensure the component meets RoHS compliance requirements as indicated in manufacturer specifications. Cross-reference the datasheet for accurate operating temperature limits and electrical parameters before integration into final designs.
Selection Notes
Select this component for applications requiring high input voltage tolerance and robust constant current drive. Consider the 14-lead HTSSOP package for surface mount assembly constraints. Evaluate the 1.5 A current capability against load requirements and ensure compatibility with PWM dimming signals for desired light control functionality.
Part Context
This part belongs to the LM3406 series of LED drivers, which are optimized for high-efficiency buck conversion. The 'HV' designation indicates high-voltage input capability, distinguishing it from standard variants. It is engineered for reliable performance in demanding lighting environments, offering integrated protection features and flexible configuration options.
Replacement Considerations
LM3406MH/NOPB offers similar functionality but with a lower maximum input voltage of 42 V compared to the 75 V limit of the HVMH variant. Verify voltage headroom requirements before substitution.
