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Product Detailed Parameters
- Description：IC LED DRIVER OFFL PWM 24VQFN
- Series：-
- Mfr：Atmel
- Package：Bulk
- Type：AC DC Offline Switcher
- Topology：Flyback, Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：2
- Voltage - Supply (Min)：9.5V
- Voltage - Supply (Max)：15V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：PWM
- Applications：Lighting
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-VFQFN Exposed Pad
- Supplier Device Package：24-VQFN (4x4)
- Grade：-
- Qualification：-
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Overview
The MSL2023-IN is an offline LED driver IC designed for two-string LED applications. It integrates a linear current controller to drive external N-channel MOSFETs, ensuring stable output currents with ±3% accuracy and zero ripple. The device supports PWM dimming and operates in flyback or step-down (buck) topologies. Packaged in a 24-VQFN (4x4) format, it is suitable for AC/DC power supply implementations requiring precise LED current regulation.
Feature Summary
- Integrates a linear current controller for main LED string regulation
- Drives external N-channel MOSFETs for high-side switching
- Provides ±3% current accuracy without output ripple
- Supports PWM dimming control interfaces
Applications
- Offline AC/DC LED lighting systems
- Two-string LED backlighting solutions
- Industrial and automotive LED drivers
Procurement Notes
Verify the component authenticity by checking the manufacturer marking against official Microchip/Atmel databases. Confirm the package type matches the 24-VQFN (4x4) specification. Ensure the suffix '-IN' corresponds to the specific tape and reel or tube packaging variant required for your assembly process. Cross-reference the datasheet revision date to confirm compatibility with your design specifications.
Selection Notes
Select this component when designing two-string LED drivers requiring high current accuracy and low ripple. It is appropriate for offline applications using flyback or buck topologies. Consider the need for external N-channel MOSFETs and the integration of PWM dimming capabilities. Evaluate thermal management requirements associated with the linear current controller section within the 24-VQFN package.
Part Context
The MSL2023 belongs to the Atmel LED Driver family, which was acquired by Microchip Technology. This series focuses on efficient LED illumination solutions for industrial, automotive, and communications markets. The MSL2023 specifically targets multi-string configurations, offering integrated control features to simplify power supply designs compared to discrete solutions.
Replacement Considerations
Consult official Microchip documentation for direct pin-to-pin replacements. Verify functional equivalence regarding current accuracy and topology support before substitution.
