TL7770-5IDW Equivalent & Substitute Parts

Part Overview

The TL7770-5IDW is a multi-voltage supervisor IC from Texas Instruments designed for power management applications. This 2-channel supervisor monitors voltage levels and provides active high/active low reset outputs with open drain or open collector configuration. The device is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is essential for design continuity, long-term supply chain planning, and new project implementations where active production alternatives are preferred.

Substiute Parts

TL7770-5IDW

Texas InstrumentsIn Stock: 1047TL7770-5IDW Datasheet

Current PartRFQ

TPS3760A012DYYR

Texas InstrumentsIn Stock: 5508TPS3760A012DYYR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL7770-5IDW is determined by the following critical parameters:

• Functional Category: Power Management supervisor IC with reset output capability
• Output Configuration: Open drain or open collector output
• Voltage Monitoring Capability: Multi-channel voltage supervision
• Reset Logic: Active high/active low reset output
• Package Compatibility: Surface mount technology
• Compliance Standards: ROHS3 compliance and REACH unaffected status
• Temperature Range: Operating temperature specifications suitable for industrial applications

The TPS3760A012DYYR qualifies as a substitute based on shared functional characteristics within the supervisor IC category, common output type (open drain/open collector), equivalent compliance certifications, and surface mount packaging. However, functional differences exist in channel count and voltage threshold specifications, which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The TL7770-5IDW is designated Last Time Buy, indicating discontinued production. The TPS3760A012DYYR maintains Active product status with Texas Instruments, ensuring ongoing availability and manufacturing support.

Compliance Alignment: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications.

Temperature Performance: The TPS3760A012DYYR extends the upper operating temperature limit to 125°C (junction temperature) compared to 85°C (ambient temperature) for the TL7770-5IDW, providing enhanced thermal margin in high-temperature environments.

Functional Differences: The TPS3760A012DYYR operates as a single-channel supervisor with fixed Active Low reset logic, whereas the TL7770-5IDW provides dual-channel monitoring with configurable reset polarity. Applications requiring multi-channel voltage supervision must evaluate alternative supervisor ICs that maintain 2-channel capability.

Frequently Asked Questions (FAQ)

Q: Can the TPS3760A012DYYR directly replace the TL7770-5IDW in existing designs?

A: Direct replacement is not recommended without circuit redesign evaluation. The TPS3760A012DYYR monitors a single voltage threshold compared to the TL7770-5IDW's dual-channel capability. Applications utilizing both channels of the original design require alternative multi-channel supervisor solutions.

Q: What are the package compatibility implications?

A: The TL7770-5IDW uses 16-SOIC packaging while the TPS3760A012DYYR uses 14-SOT-23-THIN packaging. These packages have different footprints and pin configurations, requiring PCB layout modifications and schematic redesign for substitution.

Q: Are there compliance concerns with substitution?

A: Both parts maintain equivalent compliance certifications (ROHS3, REACH unaffected, EAR99 ECCN classification). No compliance barriers exist for substitution from a regulatory standpoint.

Q: How do reset timeout specifications compare?

A: The TL7770-5IDW specifies 270ns typical propagation delay, while the TPS3760A012DYYR specifies 100µs maximum reset timeout. The TPS3760A012DYYR exhibits significantly longer reset timing, which may impact applications with strict reset timing requirements.

Q: What voltage threshold differences exist?

A: The TL7770-5IDW provides 5V adjustable threshold configuration, while the TPS3760A012DYYR operates at 0.8V fixed threshold. Voltage monitoring requirements must align with the fixed threshold specification of the substitute part.