TL7759CPWR Equivalent & Substitute Parts

Part Overview

The TL7759CPWR is a single-channel power supply supervisor IC manufactured by Texas Instruments, designed for power-on reset and simple reset applications. This device monitors a single voltage threshold at 4.55V and provides push-pull, totem pole output configuration. The part is classified as Last Time Buy, indicating end-of-life status. Finding equivalent substitute parts is necessary to ensure continued design support, maintain supply chain flexibility, and transition to active product lines where applicable.

Substiute Parts

TL7759CPWR

Texas InstrumentsIn Stock: 3157TL7759CPWR Datasheet

Current PartRFQ

TPS3760A012DYYR

Texas InstrumentsIn Stock: 5508TPS3760A012DYYR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL7759CPWR is determined by the following critical parameters:

• Functional Category: Single-channel voltage supervisor for power-on reset applications
• Voltage Monitoring: Single threshold monitoring capability
• Output Type: Push-pull or open drain/collector configurations are functionally compatible in reset circuit topologies
• Reset Logic Polarity: Active high or active low outputs can be accommodated through circuit design
• Temperature Range: Operating temperature compatibility with target application environment
• Package Form Factor: Surface mount technology with compatible pinout and thermal characteristics
• Compliance Standards: ROHS3 compliance and MSL rating consistency

The TPS3760A012DYYR qualifies as a substitute based on equivalent functional classification as a single-channel supervisor, compatible surface mount packaging, and identical compliance certifications, despite differences in output configuration and reset logic polarity.

Parameter Comparison

Engineering Selection Recommendations

The TL7759CPWR is designated Last Time Buy, making transition planning necessary for new designs and long-term production continuity. The TPS3760A012DYYR is an active product from the same manufacturer, ensuring ongoing support and availability.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, satisfying regulatory and environmental requirements. The TPS3760A012DYYR offers an extended operating temperature range (-40°C ~ 125°C) compared to the TL7759CPWR (0°C ~ 70°C), providing broader application flexibility.

Circuit-level design modifications are required when substituting, as the TPS3760A012DYYR employs open drain output and active low reset logic, contrasting with the push-pull, active high configuration of the TL7759CPWR. Additionally, the voltage threshold differs (0.8V versus 4.55V), necessitating application-specific evaluation.

Frequently Asked Questions (FAQ)

Q: Can the TPS3760A012DYYR directly replace the TL7759CPWR without circuit modifications?

A: No. The TPS3760A012DYYR requires circuit redesign due to differences in output configuration (open drain versus push-pull), reset logic polarity (active low versus active high), and voltage threshold (0.8V versus 4.55V). Pin-for-pin compatibility does not exist between these devices.

Q: What is the primary reason to consider substitution?

A: The TL7759CPWR is Last Time Buy status. The TPS3760A012DYYR is an active product offering continued manufacturer support and supply availability.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both the TL7759CPWR and TPS3760A012DYYR are ROHS3 compliant with MSL Level 1 rating and REACH unaffected status.

Q: How do the operating temperature ranges compare?

A: The TL7759CPWR operates from 0°C to 70°C. The TPS3760A012DYYR operates from -40°C to 125°C, providing a wider temperature envelope suitable for extended environmental applications.

Q: What packaging differences exist?

A: The TL7759CPWR uses 8-TSSOP packaging (0.173", 4.40mm width). The TPS3760A012DYYR uses 14-SOT-23-THIN packaging. Both are surface mount technologies with different footprints and pin counts.

Q: Are there voltage threshold compatibility considerations?

A: Yes. The TL7759CPWR monitors 4.55V threshold, while the TPS3760A012DYYR monitors 0.8V threshold. Application-specific voltage divider networks or alternative threshold devices may be required to match original design specifications.