SP691ACT-L/TR Equivalent & Substitute Parts

Part Overview

The SP691ACT-L/TR is a Power Management Integrated Circuit (PMIC) supervisor manufactured by MaxLinear, Inc., designed for single-channel voltage monitoring and reset signal generation. This device operates as a Simple Reset/Power-On Reset supervisor with Open Drain and Push-Pull output capability, housed in a 16-SOIC surface mount package. The part is Active status and RoHS Compliant, suitable for applications requiring reliable power supply supervision and system reset control.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when extended operating temperature ranges are needed for specific application environments.

Substiute Parts

SP691ACT-L/TR

MaxLinear, Inc.In Stock: 1105SP691ACT-L/TR Datasheet

Current PartRFQ

LTC691CSW#PBF

Analog Devices Inc.In Stock: 1406LTC691CSW#PBF Datasheet

MFR RecommendedRFQ

LTC691ISW#PBF

Analog Devices Inc.In Stock: 2134LTC691ISW#PBF Datasheet

MFR RecommendedRFQ

MAX691ACWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 2378MAX691ACWE+ Datasheet

MFR RecommendedRFQ

MAX691ACWE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1579MAX691ACWE+T Datasheet

MFR RecommendedRFQ

MAX691AEWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1224MAX691AEWE+ Datasheet

MFR RecommendedRFQ

MAX691AEWE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2543MAX691AEWE+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SP691ACT-L/TR is determined by the following critical parameters:

Primary Compatibility Criteria:

• Single-channel voltage monitoring capability
• 4.65V voltage threshold setting
• 16-SOIC surface mount package format
• Active High/Active Low reset logic
• Output configuration (Open Drain or Push-Pull)
• Reset timeout specification (140ms minimum or compatible alternative)
• Operating temperature range compatibility (minimum 0°C ~ 70°C)
• RoHS compliance status
• Active product status

Substitute Categories:

Category A - Direct Equivalents (Identical Output Type & Reset Timeout): MAX691ACWE+ and MAX691ACWE+T maintain identical electrical specifications including Push-Pull output configuration and 140ms minimum reset timeout, differing only in packaging format (Tube vs. Cut Tape & Digi-Reel).

Category B - Extended Temperature Range Variants: MAX691AEWE+ and MAX691AEWE+T provide identical electrical functionality with extended operating temperature range (-40°C ~ 85°C), suitable for applications requiring broader thermal performance while maintaining 140ms reset timeout and Push-Pull output.

Category C - Alternative Output Configuration: LTC691CSW#PBF and LTC691ISW#PBF offer Open Drain or Open Collector output configuration with 35ms minimum reset timeout, representing functional alternatives when output type flexibility is acceptable. LTC691ISW#PBF extends operating temperature to -40°C ~ 85°C.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): MAX691ACWE+ and MAX691ACWE+T are direct electrical equivalents to SP691ACT-L/TR, maintaining identical 140ms reset timeout and Push-Pull output configuration. Selection between these two depends on manufacturing process requirements: MAX691ACWE+ is supplied in Tube packaging, while MAX691ACWE+T is supplied in Cut Tape & Digi-Reel format. Both are ROHS3 Compliant with MSL 1 rating, providing superior moisture handling compared to the original part.

For Extended Temperature Applications: MAX691AEWE+ and MAX691AEWE+T extend the operating temperature range to -40°C ~ 85°C while maintaining all other electrical specifications identical to the original part. These variants are suitable for applications requiring broader thermal performance envelope. Packaging selection follows the same criteria as the AC variants.

For Alternative Output Configuration: LTC691CSW#PBF and LTC691ISW#PBF provide Open Drain or Open Collector output configuration as an alternative to Push-Pull output. These parts feature 35ms minimum reset timeout, which is shorter than the original 140ms specification. LTC691ISW#PBF extends operating temperature to -40°C ~ 85°C. Selection of these alternatives is appropriate only when circuit design accommodates the different output type and faster reset timeout.

All substitute parts maintain Active product status and RoHS compliance, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can MAX691ACWE+ be used as a direct replacement for SP691ACT-L/TR? A: Yes. MAX691ACWE+ is electrically identical to SP691ACT-L/TR, maintaining the same 4.65V threshold, 140ms reset timeout, Push-Pull output configuration, and 0°C ~ 70°C operating temperature range. The primary difference is packaging format (Tube vs. Tape & Reel) and improved MSL rating (1 vs. 3).

Q: What is the difference between MAX691ACWE+ and MAX691AEWE+? A: Both parts are electrically identical except for operating temperature range. MAX691ACWE+ operates from 0°C ~ 70°C, while MAX691AEWE+ operates from -40°C ~ 85°C. Select MAX691AEWE+ when extended temperature performance is required.

Q: Why do LTC691CSW#PBF and LTC691ISW#PBF have different reset timeout specifications? A: LTC691CSW#PBF and LTC691ISW#PBF feature 35ms minimum reset timeout compared to the original 140ms specification. This represents a functional difference in reset pulse duration. These parts are suitable only when circuit design accommodates the shorter timeout period.

Q: What does MSL rating mean and why is it important? A: Moisture Sensitivity Level (MSL) indicates the maximum time a component can be exposed to moisture before soldering. SP691ACT-L/TR has MSL 3 (168 hours), while substitute parts have MSL 1 (unlimited). Higher MSL ratings provide greater manufacturing flexibility and reduced risk of moisture-related failures during assembly.

Q: Are all substitute parts RoHS compliant? A: Yes. SP691ACT-L/TR is RoHS Compliant, and all substitute parts are ROHS3 Compliant, meeting current environmental and regulatory requirements.

Q: Can I use LTC691ISW#PBF in place of SP691ACT-L/TR? A: LTC691ISW#PBF is functionally compatible with SP691ACT-L/TR for single-channel voltage monitoring at 4.65V threshold. However, it features Open Drain or Open Collector output (vs. Push-Pull) and 35ms reset timeout (vs. 140ms). Substitution is valid only when circuit design accommodates these differences. The extended temperature range (-40°C ~ 85°C) provides additional thermal capability.

Q: What packaging formats are available for substitute parts? A: Substitute parts are available in Tube, Cut Tape & Digi-Reel, and Tape & Reel formats. Selection depends on manufacturing process requirements and assembly equipment compatibility. Tube packaging is suitable for manual or small-batch assembly, while Cut Tape & Digi-Reel and Tape & Reel formats support automated high-volume production.