TLC7705QP Equivalent & Substitute Parts

Part Overview

The TLC7705QP 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 4.55V and provides active high/active low reset functionality with a minimum reset timeout of 1.1ms. The TLC7705QP is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations where through-hole mounting is not a constraint.

Substiute Parts

TLC7705QP

Texas InstrumentsIn Stock: 1293TLC7705QP Datasheet

Current PartRFQ

TLC7705QD

Texas InstrumentsIn Stock: 1223TLC7705QD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC7705QP is determined by functional equivalence across the following critical parameters:

• Voltage Monitoring Capability: Single channel at 4.55V threshold
• Output Type: Push-Pull, Totem Pole configuration
• Reset Functionality: Active High/Active Low capability
• Reset Timeout: 1.1ms minimum specification
• Operating Temperature Range: -40°C to 125°C
• Base Product Number: TLC7705 series designation
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The TLC7705QD is identified as a manufacturer-recommended substitute. It maintains identical electrical specifications and functional characteristics while differing only in mounting technology (surface mount versus through-hole) and packaging format (8-SOIC versus 8-DIP).

Parameter Comparison

Engineering Selection Recommendations

The TLC7705QD is the manufacturer-recommended substitute for the obsolete TLC7705QP. Both devices maintain identical electrical specifications, functional behavior, and regulatory compliance status (ROHS3 Compliant, REACH Unaffected). The primary distinction is packaging format: the TLC7705QD employs surface-mount technology in an 8-SOIC package, whereas the TLC7705QP uses through-hole mounting in an 8-DIP package.

Selection between these parts depends on circuit board design requirements. The TLC7705QD is suitable for applications utilizing surface-mount assembly processes and PCB layouts designed for SOIC packages. The TLC7705QP remains available in existing inventory for legacy system repairs or through-hole-dependent designs, though its obsolete status indicates limited future availability.

Frequently Asked Questions (FAQ)

Q: Can the TLC7705QD directly replace the TLC7705QP in existing designs?

A: Electrical and functional replacement is complete. PCB layout and assembly process compatibility must be verified. The TLC7705QD requires surface-mount footprint design (8-SOIC), while the TLC7705QP uses through-hole mounting (8-DIP). Existing through-hole PCB layouts require redesign to accommodate the TLC7705QD.

Q: What are the key parameters that define substitution eligibility?

A: Substitution is valid when the following parameters match: single voltage monitoring channel, 4.55V threshold, push-pull totem pole output, active high/active low reset capability, 1.1ms minimum reset timeout, and -40°C to 125°C operating temperature range. Both parts meet these criteria.

Q: Why is the TLC7705QP classified as obsolete?

A: Product status reflects manufacturer lifecycle decisions. The TLC7705QD (active status) represents the current production equivalent, indicating Texas Instruments' transition from through-hole to surface-mount packaging for this supervisor function.

Q: Are there compliance or certification differences between the two parts?

A: No. Both the TLC7705QP and TLC7705QD maintain identical RoHS3 compliance, REACH unaffected status, and Moisture Sensitivity Level 1 (unlimited) ratings.

Q: What inventory considerations apply to these parts?

A: The TLC7705QP has 1249 pieces in stock (new original), while the TLC7705QD has 1205 pieces available. The TLC7705QP's obsolete status suggests limited replenishment; the TLC7705QD's active status indicates ongoing availability.