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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR PWM 1A 8SOIC
- 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：73V
- Current - Output / Channel：1A
- Frequency：1MHz
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：-
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Overview
The LM3404HVMA/NOPB is a monolithic buck regulator designed for driving high-power LEDs with constant current. It integrates a high-side N-channel MOSFET switch and operates within an input voltage range of 6 V to 75 V, supporting a maximum output voltage of 73 V. The device delivers a regulated output current of 1 A, with a peak capability of 1.2 A. It supports PWM dimming for brightness control and functions at switching frequencies between 10 kHz and 1 MHz. The component is housed in an 8-SOIC package and operates reliably across a temperature range of -40°C to +125°C.
Feature Summary
- Integrates a high-side N-channel MOSFET switch for compact LED driver designs
- Provides precise constant current regulation for high-power LED applications
- Supports external PWM dimming for adjustable brightness control
Applications
- Automotive lighting systems
- Industrial illumination fixtures
- General purpose LED lighting
Procurement Notes
Verify the specific suffix 'MA' corresponds to the tube packaging variant when ordering. Confirm that the 75 V input rating aligns with the system's supply voltage requirements. Ensure the SOIC-8 footprint matches the PCB layout specifications. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.
Selection Notes
Select this component when input voltages exceed standard 42 V limits, requiring the extended 75 V rating. Choose the MA suffix for tube-based manufacturing processes rather than tape-and-reel. Consider the thermal performance of the SOIC-8 package for the expected power dissipation levels in the target application environment.
Part Context
This part belongs to the LM3404HV series from Texas Instruments, which extends the capabilities of the standard LM3404 family. While the base LM3404 typically handles lower voltages, the HV variant is specifically engineered for higher input supply rails. This series is widely utilized in robust LED driver solutions where high voltage tolerance is essential.
Replacement Considerations
LM3404HVMAX/NOPB is a publicly confirmed substitute offering identical electrical characteristics but supplied in tape-and-reel packaging instead of tubes.
