ICM7225IPL Equivalent & Substitute Parts

Part Overview

The ICM7225IPL is a 7-segment LED driver manufactured by Analog Devices Inc./Maxim Integrated, designed to drive 4.5-digit LED displays. This component operates with a supply voltage range of 4V to 6V and a maximum supply current of 200 mA. The device is packaged in a 40-pin DIP configuration suitable for through-hole mounting applications.

The ICM7225IPL has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this driver.

Substiute Parts

ICM7225IPL

Analog Devices Inc./Maxim IntegratedIn Stock: 1361ICM7225IPL Datasheet

Current PartRFQ

ICM7224IPL+

Analog Devices Inc./Maxim IntegratedIn Stock: 915ICM7224IPL+ Datasheet

MFR RecommendedRFQ

ICM7228CIPIZ

Renesas Electronics CorporationIn Stock: 1697ICM7228CIPIZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICM7225IPL is determined by the following critical parameters:

• Display Type Compatibility: The primary substitute must support LED display driving functionality to maintain electrical and functional equivalence with the original design.
• Configuration: 7-segment configuration is required for direct functional replacement.
• Voltage Supply Range: Substitute parts must operate within or encompass the 4V to 6V supply voltage range of the original device.
• Operating Temperature Range: The substitute must support the -20°C to 85°C operating window or a broader range that includes these limits.
• Package Type: Through-hole mounting in DIP configuration is required for mechanical compatibility with existing PCB layouts.
• Digit Count: For direct substitution, 4.5-digit capability is preferred; however, higher digit-count drivers may serve as functional alternatives depending on application requirements.

Based on these criteria, two substitute parts have been identified from the available inventory.

Parameter Comparison

Engineering Selection Recommendations

ICM7224IPL+ Considerations:

The ICM7224IPL+ is manufactured by the same supplier as the original ICM7225IPL and maintains identical package dimensions and digit count. However, this substitute is designed for LCD display applications rather than LED applications. The supply current requirement is significantly lower at 10 µA compared to the original 200 mA specification. The voltage supply range is broader (3V to 6V), encompassing the original 4V to 6V range. The ICM7224IPL+ holds active product status and is ROHS3 compliant, providing regulatory advantages over the obsolete, non-compliant original part.

ICM7228CIPIZ Considerations:

The ICM7228CIPIZ is manufactured by Renesas Electronics Corporation and maintains LED display compatibility with the original ICM7225IPL. The supply current specification of 200 µA is substantially lower than the original 200 mA requirement. The voltage supply range (4V to 6V) matches the original specification exactly. The operating temperature range extends to -40°C, providing broader low-temperature capability than the original -20°C minimum. The package is a 28-pin DIP configuration, which differs from the original 40-pin DIP, requiring PCB layout modifications. The device supports 8-digit display capability, exceeding the original 4.5-digit specification. The ICM7228CIPIZ holds active product status and is ROHS3 compliant.

Both substitute parts offer improved regulatory compliance and active product status. Selection between them depends on display type requirements (LED versus LCD), package footprint constraints, and digit count needs for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the ICM7224IPL+ directly replace the ICM7225IPL in an existing design?

A: The ICM7224IPL+ shares the same 40-pin DIP package and 4.5-digit specification as the ICM7225IPL. However, it is designed for LCD display driving rather than LED display driving. Direct replacement is possible only if the application can accommodate LCD display technology. The significantly lower supply current (10 µA versus 200 mA) may also require circuit design adjustments.

Q: What are the package differences between the substitute parts?

A: The ICM7224IPL+ maintains the original 40-pin DIP (0.600", 15.24mm) package, allowing direct PCB footprint compatibility. The ICM7228CIPIZ uses a 28-pin DIP (0.600", 15.24mm) package, which is physically smaller and requires PCB layout redesign for implementation.

Q: How do the supply current specifications affect component selection?

A: The ICM7225IPL requires 200 mA supply current. The ICM7224IPL+ requires only 10 µA, and the ICM7228CIPIZ requires 200 µA. Lower supply current requirements reduce power dissipation and may simplify power supply design. However, the original design must be evaluated to determine if power supply modifications are necessary or beneficial.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the ICM7224IPL+ and ICM7228CIPIZ are ROHS3 compliant, whereas the original ICM7225IPL is RoHS non-compliant. This provides regulatory and environmental advantages for new designs or production runs.

Q: What is the significance of the operating temperature range differences?

A: The ICM7225IPL and ICM7224IPL+ both operate from -20°C to 85°C. The ICM7228CIPIZ extends the lower temperature limit to -40°C, providing enhanced performance in cold-temperature environments. All three parts support the same upper temperature limit of 85°C.

Q: Can the ICM7228CIPIZ support 4.5-digit display applications?

A: The ICM7228CIPIZ is specified for 8-digit display capability, which exceeds the 4.5-digit requirement of the original ICM7225IPL. The device can be configured to drive fewer digits if the application requires only 4.5-digit functionality, though this represents underutilization of the component's capability.