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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 20HTSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：SEPIC, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：75V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：2MHz
- Dimming：Analog, PWM
- Applications：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：20-HTSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM3423Q0MHX/NOPB is an automotive-grade N-channel controller designed for constant current LED drivers. It operates within a -40°C to +150°C temperature range and features AEC-Q100 qualification. The device utilizes a 20-pin HTSSOP package and supports adjustable switch frequency, enable/shutdown control, and thermal shutdown protection.
Feature Summary
- Automotive-grade N-channel controller for constant current LED applications
- AEC-Q100 qualified for high reliability in vehicle environments
- Integrated thermal shutdown protection for enhanced safety
Applications
- Automotive LED lighting systems
- Constant current LED driver designs
- High-temperature industrial LED applications
Procurement Notes
Verify the specific suffix 'Q0' against official Texas Instruments documentation to confirm it denotes the commercial/automotive grade variant rather than 'Q1'. Ensure the HTSSOP-20 package matches your PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.
Selection Notes
Select this component when designing LED drivers requiring operation up to 150°C junction temperature. The N-channel architecture suits specific topology requirements. Verify that the adjustable switching frequency range meets your electromagnetic interference constraints. Ensure the 20-pin HTSSOP package fits the available board space.
Part Context
This part belongs to the LM3423 family of LED lighting drivers from Texas Instruments. The series includes variants such as LM3423Q1MHX/NOPB and non-qualified versions like LM3423MHX/NOPB. The Q0 designation typically indicates a specific grade or revision within the automotive-focused product line.
Replacement Considerations
LM3423Q1MHX/NOPB shares the same family but may differ in qualification levels. LM3423MHX/NOPB is a non-automotive equivalent. Verify pinout compatibility and electrical parameters with official cross-reference data before substitution.
