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ICL7665AESA Equivalent & Substitute Parts
Part Overview
The ICL7665AESA is a multi-voltage supervisor IC designed for power management applications, monitoring two voltage channels with adjustable/selectable thresholds and open drain or open collector output configuration. The device operates across the industrial temperature range of -40°C to 85°C and is packaged in an 8-SOIC surface mount package.
The ICL7665AESA is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems utilizing this supervisor topology.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Category | Power Management (PMIC) |
| Type | Multi-Voltage Supervisor |
| Number of Voltages Monitored | 2 |
| Voltage Threshold | Adjustable/Selectable |
| Output Configuration | Open Drain or Open Collector |
| Reset Type | Active High |
| Reset Timeout | <1ms Minimum |
| Operating Temperature Range | -40°C to 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Base Product Number | ICL7665 |
Substitute Part Grouping Explanation
Substitution of the ICL7665AESA is determined by strict equivalence across the following critical parameters:
- Functional Type: Multi-voltage supervisor with 2-channel monitoring capability
- Output Configuration: Open drain or open collector topology
- Reset Characteristics: Active high reset with <1ms minimum timeout
- Voltage Threshold Control: Adjustable/selectable threshold configuration
- Package Specification: 8-SOIC surface mount package with 0.154" (3.90mm) width
- Temperature Range: -40°C to 85°C operating specification
- Electrical Interface: Compatible pin configuration and signal levels
The ICL7665AESA+ variant meets all functional and electrical requirements for direct substitution while offering improved product status and compliance characteristics.
Parameter Comparison
| Parameter | ICL7665AESA (Main Part) | ICL7665AESA+ (Substitute) |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Type | Multi-Voltage Supervisor | Multi-Voltage Supervisor |
| Number of Voltages Monitored | 2 | 2 |
| Voltage Threshold | Adjustable/Selectable | Adjustable/Selectable |
| Output Configuration | Open Drain or Open Collector | Open Drain or Open Collector |
| Reset Type | Active High | Active High |
| Reset Timeout | <1ms Minimum | <1ms Minimum |
| Operating Temperature Range | -40°C to 85°C (TA) | -40°C to 85°C (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The ICL7665AESA+ is the direct substitute for the obsolete ICL7665AESA. Both devices share identical functional specifications, electrical characteristics, and package geometry, ensuring pin-for-pin compatibility and circuit-level interchangeability.
The ICL7665AESA+ offers the advantage of active product status, ensuring continued availability and manufacturing support. Additionally, the ICL7665AESA+ meets ROHS3 compliance requirements, whereas the original ICL7665AESA is RoHS non-compliant. Both devices maintain REACH unaffected status and identical moisture sensitivity classification.
For new designs or production continuity, the ICL7665AESA+ is the appropriate selection. Existing designs utilizing the ICL7665AESA can transition to the ICL7665AESA+ without circuit modification or re-qualification, provided compliance requirements align with system specifications.
Frequently Asked Questions (FAQ)
Q: Is the ICL7665AESA+ a direct pin-for-pin replacement for the ICL7665AESA?
A: Yes. The ICL7665AESA+ maintains identical pin configuration, package dimensions (8-SOIC, 0.154" width), and electrical interface specifications. No circuit modification is required for substitution.
Q: What is the primary difference between the ICL7665AESA and ICL7665AESA+?
A: The ICL7665AESA+ is an active product with ROHS3 compliance, whereas the ICL7665AESA is obsolete and RoHS non-compliant. Functional and electrical specifications are identical.
Q: Can the ICL7665AESA+ be used in applications originally designed for the ICL7665AESA?
A: Yes. The ICL7665AESA+ provides equivalent functionality across all monitored parameters: 2-channel voltage supervision, adjustable/selectable thresholds, active high reset with <1ms timeout, open drain or open collector output, and -40°C to 85°C operating temperature range.
Q: Are there packaging differences between these parts?
A: Both devices use 8-SOIC surface mount packaging with identical dimensions. The ICL7665AESA+ is supplied in tube packaging, while the original ICL7665AESA packaging specification was not provided.
Q: What compliance certifications apply to the ICL7665AESA+?
A: The ICL7665AESA+ is ROHS3 compliant and REACH unaffected. Moisture sensitivity level is classified as 1 (unlimited). Both devices carry EAR99 ECCN classification and 8542.39.0001 HTSUS code.
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