TLC7703QP Equivalent & Substitute Parts

Part Overview

The TLC7703QP is a power management integrated circuit (PMIC) functioning as a supervisor with push-pull, totem pole output configuration. It monitors a single voltage channel with a threshold of 2.63V and provides active high/active low reset functionality with a minimum reset timeout of 1.1ms. The device is packaged in an 8-DIP through-hole format.

The TLC7703QP is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support, design updates, and procurement continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability.

Substiute Parts

TLC7703QP

Texas InstrumentsIn Stock: 2291TLC7703QP Datasheet

Current PartRFQ

TLC7703IP

Texas InstrumentsIn Stock: 5306TLC7703IP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC7703QP is determined by strict equivalence across the following critical parameters:

• Functional Type: Simple Reset/Power-On Reset supervisor with single voltage channel monitoring
• Voltage Threshold: 2.63V
• Output Configuration: Push-Pull, Totem Pole
• Reset Logic: Active High/Active Low capability
• Reset Timeout: 1.1ms Minimum
• Package Format: 8-DIP (0.300", 7.62mm) through-hole
• Electrical Compliance: ROHS3 Compliant, REACH Unaffected

The TLC7703IP qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. Differences in operating temperature range and product status do not preclude substitution when application requirements fall within the substitute's specified operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The TLC7703IP is a qualified substitute for the TLC7703QP based on electrical and mechanical parameter equivalence. Both devices are manufactured by Texas Instruments and maintain identical functional specifications for voltage threshold, output configuration, reset logic, and package format.

The primary distinction is operating temperature range: the TLC7703QP supports -40°C to 125°C, while the TLC7703IP supports -40°C to 85°C. Selection between these parts must be based on application temperature requirements. For applications operating within the -40°C to 85°C envelope, the TLC7703IP provides equivalent functionality.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent substitution. The TLC7703IP carries Last Time Buy status, indicating limited future availability; procurement planning should account for this classification.

Frequently Asked Questions (FAQ)

Q: Can the TLC7703IP directly replace the TLC7703QP in existing designs?

A: Direct replacement is possible when application operating temperature remains within -40°C to 85°C. The TLC7703IP matches all critical electrical parameters including voltage threshold (2.63V), output configuration (push-pull, totem pole), reset logic (active high/active low), and package format (8-DIP). No circuit modifications are required for compatible temperature applications.

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

A: The TLC7703QP operates to 125°C, while the TLC7703IP operates to 85°C. Applications requiring operation above 85°C must use the TLC7703QP or identify alternative supervisor ICs with extended temperature ratings. Applications with maximum operating temperatures at or below 85°C experience no functional limitation with the TLC7703IP.

Q: Are both parts pin-compatible?

A: Yes. Both the TLC7703QP and TLC7703IP use identical 8-DIP (0.300", 7.62mm) through-hole packaging with matching pin configurations. No PCB layout modifications are necessary for substitution.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: Why is the TLC7703QP classified as obsolete?

A: Obsolete classification indicates the manufacturer has discontinued production. The TLC7703IP, classified as Last Time Buy, represents the final production run before complete discontinuation of this supervisor IC family. Long-term designs should evaluate alternative supervisor ICs with active production status.