MSL1060AW LED Driver IC Equivalent & Substitute Parts

Part Overview

The MSL1060AW is a 6-output LED driver IC manufactured by Microchip Technology, featuring a Step-Up (Boost) DC-DC regulator topology with PWM dimming capability. Designed for backlight applications, this device delivers 30mA per channel output with a 1.1MHz switching frequency and operates across a 4.75V to 36V supply range, producing up to 48V output.

The MSL1060AW is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

MSL1060AW

Microchip TechnologyIn Stock: 785MSL1060AW Datasheet

Current PartRFQ

AP3156FVG-7

Diodes IncorporatedIn Stock: 1555AP3156FVG-7 Datasheet

MFR RecommendedRFQ

ISL97671AIRZ-T

Renesas Electronics CorporationIn Stock: 8100ISL97671AIRZ-T Datasheet

MFR RecommendedRFQ

ISL97694AIRTZ-TK

Renesas Electronics CorporationIn Stock: 797ISL97694AIRTZ-TK Datasheet

MFR RecommendedRFQ

LP8556SQ-E09/NOPB

Texas InstrumentsIn Stock: 4251LP8556SQ-E09/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSL1060AW is determined by the following critical parameters:

• Topology: Step-Up (Boost) DC-DC regulator with internal switching capability
• Number of Outputs: 6 independent LED driver outputs
• Supply Voltage Range: Minimum 4.75V input capability
• Output Voltage: Capable of reaching 48V or higher
• Output Current: 30mA per channel minimum
• Dimming Control: PWM dimming support
• Package Compatibility: Surface mount QFN/WQFN form factor
• Operating Temperature: -40°C to 85°C range
• Compliance: ROHS3 compliant

The substitute parts listed below meet these core functional and electrical requirements while maintaining compatibility with backlight driver applications. Substitutes are grouped by their alignment with the original part's electrical specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with current manufacturer support and ROHS3 compliance, providing supply chain continuity for the obsolete MSL1060AW.

LP8556SQ-E09/NOPB (Texas Instruments): This part offers the closest electrical alignment with the MSL1060AW, featuring Step-Up topology, 6 outputs, 50mA per channel capability, and output voltage range of 7V to 43V. The 24-WFQFN package is mechanically compatible with the original 24-WQFN footprint. MSL rating of 1 (Unlimited) provides superior moisture handling compared to the original part's MSL 3 rating. Operating temperature range of -30°C to 85°C covers most applications, though the minimum is 5°C higher than the original specification.

ISL97671AIRZ-T (Renesas Electronics Corporation): This device provides Step-Up topology with 6 outputs and 50mA per channel output current, exceeding the original 30mA specification. Output voltage capability of 45V closely matches the MSL1060AW's 48V specification. The 20-QFN package requires PCB layout modification. Operating temperature range matches the original at -40°C to 85°C. MSL rating of 3 (168 Hours) is identical to the original part.

ISL97694AIRTZ-TK (Renesas Electronics Corporation): This part matches the MSL1060AW's 30mA per channel output current specification exactly. Step-Up topology and 6-output configuration provide functional equivalence. However, the maximum output voltage of 26V is significantly lower than the original 48V specification, limiting applicability to lower voltage backlight systems. The 20-QFN package requires PCB layout modification. Operating temperature and MSL ratings match the original specifications.

AP3156FVG-7 (Diodes Incorporated): This device employs Switched Capacitor (Charge Pump) topology rather than Step-Up (Boost), representing a different circuit architecture. The 20mA per channel output current is lower than the original 30mA specification. Output voltage is not specified in the provided data. The 16-WQFN package is smaller than the original 24-WQFN, requiring significant PCB redesign. MSL rating of 1 (Unlimited) provides superior moisture handling. This part is suitable only for applications with lower current and voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can the LP8556SQ-E09/NOPB directly replace the MSL1060AW without PCB modifications?

A: The LP8556SQ-E09/NOPB uses a 24-WFQFN package compared to the original 24-WQFN package. Both are 24-pin WQFN variants with similar pin configurations and footprints, making direct PCB replacement feasible in most cases. However, verification of pin-to-pin compatibility and signal routing is required before implementation.

Q: What is the primary difference between the ISL97671AIRZ-T and ISL97694AIRTZ-TK?

A: Both devices are Renesas Step-Up LED drivers with 6 outputs and PWM dimming. The ISL97671AIRZ-T delivers 50mA per channel with 45V maximum output voltage, while the ISL97694AIRTZ-TK delivers 30mA per channel with 26V maximum output voltage. Selection depends on the required output current and voltage specifications of the target application.

Q: Why is the AP3156FVG-7 listed as a substitute if it uses different topology?

A: The AP3156FVG-7 is included because it shares the same functional category (6-output LED driver IC) and applications (backlight). However, its Switched Capacitor topology and lower current/voltage specifications make it suitable only for specific applications with reduced power requirements. Topology differences require careful circuit design review before substitution.

Q: What does MSL rating mean, and why do some substitutes have different ratings?

A: Moisture Sensitivity Level (MSL) indicates the component's sensitivity to moisture absorption during storage and handling. MSL 1 (Unlimited) means the part can be stored indefinitely without moisture precautions. MSL 3 (168 Hours) requires the part to be used within 168 hours of package opening. Substitutes with lower MSL ratings (1) offer more flexible handling and storage conditions compared to the original MSL 3 rating.

Q: Are all substitute parts available in the same packaging format?

A: No. The LP8556SQ-E09/NOPB uses 24-WFQFN packaging (compatible with the original 24-WQFN). The ISL97671AIRZ-T and ISL97694AIRTZ-TK use 20-QFN packaging, and the AP3156FVG-7 uses 16-WQFN packaging. Different package sizes require PCB layout modifications and may affect thermal management and signal integrity.

Q: Which substitute part has the widest supply voltage range?

A: The LP8556SQ-E09/NOPB supports 2.7V to 20V input range, the ISL97671AIRZ-T supports 4.5V to 26.5V, and the ISL97694AIRTZ-TK supports 2.4V to 5.5V. The original MSL1060AW supports 4.75V to 36V. None of the substitutes match the original's maximum supply voltage of 36V, which may limit applicability in high-voltage input systems.

Q: What is the operating temperature range difference between the MSL1060AW and its substitutes?

A: The MSL1060AW operates from -40°C to 85°C. The LP8556SQ-E09/NOPB operates from -30°C to 85°C (5°C higher minimum). The ISL97671AIRZ-T and ISL97694AIRTZ-TK both operate from -40°C to 85°C (matching the original). The AP3156FVG-7 operates from -40°C to 85°C (matching the original). Applications requiring operation below -30°C should avoid the LP8556SQ-E09/NOPB.