MM5450BV LED Driver IC - Equivalent & Substitute Parts

Part Overview

The MM5450BV is a LED Driver IC manufactured by Microchip Technology, designed for display applications with serial interface control. This 44-PLCC packaged component operates across a 4.75V to 11V supply range with 10 mA supply current and supports operating temperatures from -40°C to 85°C.

The MM5450BV is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems utilizing this LED driver architecture.

Substiute Parts

MM5450BV

Microchip TechnologyIn Stock: 1750MM5450BV Datasheet

Current PartRFQ

MM5450YV

Microchip TechnologyIn Stock: 1927MM5450YV Datasheet

DirectRFQ

MAX6956AAI+

Analog Devices Inc./Maxim IntegratedIn Stock: 3253MAX6956AAI+ Datasheet

MFR RecommendedRFQ

MAX6956AAI+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5737MAX6956AAI+T Datasheet

MFR RecommendedRFQ

MAX6956AAX+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1989MAX6956AAX+T Datasheet

MFR RecommendedRFQ

MAX6956ATL+

Analog Devices Inc./Maxim IntegratedIn Stock: 2412MAX6956ATL+ Datasheet

MFR RecommendedRFQ

MAX6956ATL+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3869MAX6956ATL+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MM5450BV is determined by the following critical parameters:

Functional Compatibility Criteria:

• Display Type: LED
• Mounting Type: Surface Mount
• Category: Power Management (PMIC)

Electrical Compatibility Criteria:

• Supply Voltage Range (must encompass or overlap with 4.75V ~ 11V)
• Supply Current characteristics
• Operating Temperature Range (must support -40°C minimum and 85°C maximum)
• Interface Type (Serial or I2C control protocols)

Physical Compatibility Criteria:

• Package / Case form factor
• Pin count and layout compatibility

The substitute parts are grouped into two categories:

Direct Equivalent (Same Manufacturer - Microchip):

• MM5450YV: Identical electrical specifications and 44-PLCC package, active product status with RoHS3 compliance

Cross-Manufacturer Alternatives (Analog Devices Inc./Maxim Integrated MAX6956 Series):

• MAX6956ATL+, MAX6956ATL+T, MAX6956AAI+, MAX6956AAI+T, MAX6956AAX+T: Alternative LED driver architectures with I2C interface, different package options (28-SSOP, 36-SSOP, 40-TQFN), lower supply current (180 µA), and extended operating temperature range (-40°C ~ 125°C)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Option):

MM5450YV is the optimal substitute for MM5450BV. Both parts share identical electrical specifications (4.75V ~ 11V supply, 10 mA supply current, -40°C ~ 85°C operating range), the same 44-PLCC package, and serial interface architecture. MM5450YV maintains active product status and achieves ROHS3 compliance, addressing regulatory requirements while preserving design compatibility.

For Cross-Manufacturer Migration (Alternative Path):

The MAX6956 series (MAX6956ATL+, MAX6956ATL+T, MAX6956AAI+, MAX6956AAI+T, MAX6956AAX+T) represents alternative LED driver solutions from Analog Devices Inc./Maxim Integrated. These parts offer:

• Active product status with ROHS3 compliance and MSL 1 rating
• Extended operating temperature range (-40°C ~ 125°C)
• Reduced supply current consumption (180 µA versus 10 mA)
• I2C interface protocol (differs from MM5450BV serial interface)
• Multiple package options (28-SSOP, 36-SSOP, 40-TQFN)

Cross-manufacturer substitution requires design modification to accommodate I2C protocol implementation and supply voltage range adjustment (2.5V ~ 5.5V). Package changes necessitate PCB layout revision.

Frequently Asked Questions (FAQ)

Q: Can MM5450YV directly replace MM5450BV without PCB modifications?

A: Yes. MM5450YV is a direct equivalent with identical electrical specifications, supply voltage range (4.75V ~ 11V), supply current (10 mA), operating temperature range (-40°C ~ 85°C), and 44-PLCC package configuration. No design changes are required.

Q: What are the key differences between MM5450BV and MAX6956 series substitutes?

A: The MAX6956 series differs in three critical areas: (1) Interface protocol—MAX6956 uses I2C control versus MM5450BV serial interface, requiring firmware modification; (2) Supply voltage range—MAX6956 operates 2.5V ~ 5.5V versus MM5450BV 4.75V ~ 11V, necessitating power supply redesign; (3) Package form factor—MAX6956 variants use 28-SSOP, 36-SSOP, or 40-TQFN packages versus MM5450BV 44-PLCC, requiring PCB layout changes.

Q: Is MM5450YV RoHS compliant?

A: Yes. MM5450YV achieves ROHS3 compliance, addressing environmental and regulatory requirements. MM5450BV is RoHS non-compliant.

Q: What packaging options are available for MAX6956 substitutes?

A: MAX6956 series offers three package configurations: 28-SSOP (MAX6956AAI+, MAX6956AAI+T), 36-SSOP (MAX6956AAX+T), and 40-TQFN (MAX6956ATL+, MAX6956ATL+T). Package selection depends on pin count requirements and PCB layout constraints.

Q: Can I use MAX6956 parts in existing MM5450BV designs without modification?

A: No. MAX6956 substitution requires design modifications including: (1) I2C protocol implementation in firmware; (2) Power supply adjustment to 2.5V ~ 5.5V range; (3) PCB layout revision for different package footprint; (4) Potential pin reassignment and control logic changes.

Q: What is the Moisture Sensitivity Level (MSL) difference between MM5450BV and substitutes?

A: MM5450BV and MM5450YV both have MSL 3 (168 Hours). MAX6956 series parts have MSL 1 (Unlimited), indicating superior moisture resistance and reduced handling constraints during storage and assembly.

Q: Which substitute offers the lowest power consumption?

A: MAX6956 series parts consume 180 µA supply current, significantly lower than MM5450BV and MM5450YV at 10 mA. This represents a 55x reduction in supply current, beneficial for battery-powered or low-power applications.