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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 10HVSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：6V
- Voltage - Supply (Max)：75V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：Analog, PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-HVSSOP
- Grade：Automotive
- Qualification：-
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Overview
The LM3409HVMY/NOPB is an automotive-grade P-FET buck controller designed for high-power LED drivers. It supports a wide input voltage range of 6V to 75V and delivers up to 1.5A output current. The device features adjustable switching frequency, precision dimming control via analog or PWM signals, and integrated thermal shutdown protection. Packaged in a 10-HVSSOP with PowerPAD, it operates within a temperature range of -40°C to +125°C.
Feature Summary
- Supports high-side differential current sensing for accurate regulation
- Enables precise brightness control through combined analog and PWM dimming capabilities
- Integrates thermal shutdown protection to ensure operational safety under overload conditions
Applications
- Automotive exterior lighting systems requiring AEC-Q100 compliance
- High-power LED headlamp modules utilizing PFET topologies
- Industrial LED illumination fixtures demanding wide input voltage tolerance
Procurement Notes
Verify the specific suffix 'HV' indicates the 75V variant distinct from standard models. Confirm package marking matches the 10-HVSSOP PowerPAD outline. Ensure design reviews account for the extended delivery timelines associated with automotive qualified components. Cross-reference datasheet revisions to validate pinout compatibility before integration.
Selection Notes
Select this component when designing buck converters for LED loads requiring inputs up to 75V. It is suitable for applications needing robust thermal management and flexible dimming interfaces. Consider the HVSSOP footprint constraints and ensure adequate PCB copper area for the exposed pad to manage heat dissipation effectively during continuous operation.
Part Context
This part belongs to the LM3409 family of P-FET controllers from Texas Instruments. It complements lower voltage variants like the LM3409MY by extending the input range to accommodate higher bus voltages common in automotive architectures. The 'Q1' designation confirms its qualification for automotive reliability standards.
Replacement Considerations
LM3409HVMYX/NOPB serves as a direct functional substitute with identical electrical specifications and pinout configuration. Verify that any alternative sourcing maintains the same automotive grade certification and thermal performance characteristics.
