MSL2023-INR Equivalent & Substitute Parts

Part Overview

The MSL2023-INR is an LED driver IC manufactured by Microchip Technology, designed for AC DC offline switching applications with flyback and step-down (buck) topology. This 24-VQFN surface mount device provides 2-output PWM dimming control for lighting applications across an operating temperature range of -40°C to 105°C. The part is currently classified as obsolete, making identification of suitable equivalent and substitute components essential for ongoing design support and production continuity.

Substiute Parts

MSL2023-INR

Microchip TechnologyIn Stock: 960MSL2023-INR Datasheet

Current PartRFQ

MSL2021-INR

Microchip TechnologyIn Stock: 774MSL2021-INR Datasheet

Parametric EquivalentRFQ

TPS92001DR

Texas InstrumentsIn Stock: 878TPS92001DR Datasheet

MFR RecommendedRFQ

TPS92410D

Texas InstrumentsIn Stock: 1987TPS92410D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSL2023-INR is determined by the following critical parameters: AC DC offline switcher topology, PWM dimming capability, surface mount packaging, and operating temperature range. The substitute parts identified fall into two categories based on parametric alignment:

Parametric Equivalent (MSL2021-INR): Shares identical electrical specifications including 2-output configuration, 9.5V to 15V supply voltage range, PWM dimming, and 24-VQFN package. The primary difference is packaging format (Cut Tape versus standard packaging). This part maintains full functional equivalence.

Manufacturer Recommended Alternatives (TPS92001DR, TPS92410D): These Texas Instruments devices provide AC DC offline switcher functionality with TRIAC or analog dimming options. However, they differ in output count, package type, and supply voltage specifications. These are considered functional alternatives rather than direct pin-for-pin replacements.

Parameter Comparison

Engineering Selection Recommendations

MSL2021-INR is the preferred direct equivalent for MSL2023-INR replacement. Both parts maintain identical electrical and thermal specifications, ROHS3 compliance, and MSL rating. The only distinction is packaging format. This part is suitable for applications requiring exact functional equivalence with minimal design modification.

TPS92001DR and TPS92410D are manufacturer-recommended alternatives from Texas Instruments. Selection between these options depends on application-specific requirements:

TPS92001DR operates within a maximum supply voltage of 21V and provides TRIAC dimming in an 8-SOIC package. This device is classified as Last Time Buy, indicating limited future availability.

TPS92410D supports a significantly wider supply voltage range (9.5V to 450V) with both analog and TRIAC dimming options in a 13-SOIC package. This part maintains Active product status and extended operating temperature range (-40°C to 125°C), providing superior long-term availability and thermal performance.

All substitute candidates maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can MSL2021-INR be used as a direct replacement for MSL2023-INR?

A: Yes. MSL2021-INR is a parametric equivalent with identical electrical specifications, supply voltage range, output configuration, dimming method, and thermal operating range. The parts differ only in packaging format (Cut Tape versus standard). No circuit redesign is required.

Q: What are the key differences between the Microchip and Texas Instruments alternatives?

A: The Microchip MSL2021-INR maintains the 2-output configuration and PWM dimming of the original MSL2023-INR. The Texas Instruments devices (TPS92001DR and TPS92410D) reduce output count to 1 and employ TRIAC or analog dimming instead of PWM. These differences require circuit evaluation to determine compatibility with existing designs.

Q: Why do TPS92001DR and TPS92410D have different supply voltage specifications?

A: TPS92001DR is optimized for lower voltage applications with a 21V maximum rating. TPS92410D is designed for universal AC input applications, supporting up to 450V supply voltage. Selection depends on the intended power supply topology and input voltage requirements.

Q: Is TPS92410D suitable for long-term production use?

A: Yes. TPS92410D maintains Active product status, indicating ongoing manufacturer support and availability. It also provides an extended operating temperature range (-40°C to 125°C) compared to the original MSL2023-INR (-40°C to 105°C), offering improved thermal margin for demanding applications.

Q: What is the significance of the MSL rating difference between MSL2023-INR and TPS92410D?

A: MSL2023-INR carries MSL 1 (Unlimited moisture sensitivity), while TPS92410D carries MSL 2 (1 Year). This means TPS92410D requires moisture control during storage and handling for up to one year. Standard moisture barrier packaging and storage conditions will satisfy this requirement for typical production environments.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. MSL2021-INR, TPS92001DR, and TPS92410D are all ROHS3 compliant and REACH unaffected, meeting the same regulatory requirements as the original MSL2023-INR.