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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 8VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Bulk
- 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：500mA
- Frequency：1MHz
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-VSSOP
- Grade：-
- Qualification：-
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Overview
The LM3402HVMMX/NOPB is a high-voltage LED driver IC manufactured by Texas Instruments, designed for constant current buck applications. It operates with an input voltage range of 6V to 75V and delivers a regulated output current of 500mA per channel. The device supports PWM dimming control and features an internal switch within a compact 8-VSSOP package. It functions as a DC-DC step-down converter optimized for lighting efficiency.
Feature Summary
- Provides precise constant current regulation for single-channel LED loads
- Supports external PWM dimming signals for brightness control
- Integrates a high-side power switch to minimize external component count
- Operates efficiently across a wide input voltage range up to 75V
Applications
- General solid-state lighting fixtures
- Automotive interior illumination systems
- Portable battery-powered LED lamps
- Industrial accent lighting circuits
Procurement Notes
Verify the specific suffix 'X' against official Texas Instruments documentation to confirm tape-and-reel packaging status, as standard listings may vary. Confirm RoHS compliance details directly with the manufacturer, as historical data indicates potential variations in environmental compliance for older revisions. Ensure the part number matches the exact pinout and thermal requirements for your PCB layout design.
Selection Notes
Select this component when designing non-isolated buck converters requiring high input voltages up to 75V. It is suitable for applications needing adjustable current settings via a single external resistor. Consider the 8-VSSOP package for space-constrained designs. Verify that the required switching frequency aligns with available inductor options to maintain optimal efficiency and thermal performance.
Part Context
This part belongs to the LM3402HV family, which extends the standard LM3402 capabilities to handle higher input voltages. It serves as a direct replacement for the discontinued LM3402HVMM variant. The device is part of Texas Instruments' broader portfolio of LED lighting drivers, offering a balance of performance and simplicity for standalone LED control tasks.
Replacement Considerations
The LM3402HVMM/NOPB is listed as a direct substitute. Verify pin compatibility and electrical specifications before swapping. No other cross-model replacements are confirmed in public records.
