UCC2802PW Equivalent & Substitute Parts

Part Overview

The UCC2802PW is a Power Supply Controller PWM Controller in 8-TSSOP surface mount packaging, manufactured by Texas Instruments. This offline switch controller is designed for power management applications requiring pulse-width modulation control. The UCC2802PW is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

UCC2802PW

Texas InstrumentsIn Stock: 1090UCC2802PW Datasheet

Current PartRFQ

UCC2802DTR

Texas InstrumentsIn Stock: 3282UCC2802DTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCC2802PW is determined by strict equivalence across the following critical parameters:

• Base product number (UCC2802 series)
• Functional classification (PWM Controller for offline switch applications)
• Electrical specifications: Input voltage range (-0.3V ~ 6.3V), supply voltage range (8.3V ~ 11V), and supply current (500 µA)
• Operating temperature range (-40°C ~ 125°C)
• Surface mount technology requirement
• Regulatory compliance (ROHS3, REACH Unaffected)

The UCC2802DTR qualifies as a direct substitute based on identical electrical parameters and regulatory status. The primary difference is packaging format: UCC2802PW uses 8-TSSOP (0.173", 4.40mm width) while UCC2802DTR uses 8-SOIC (0.154", 3.90mm width). Both packages are surface mount and functionally equivalent for the same application circuits.

Parameter Comparison

Engineering Selection Recommendations

The UCC2802DTR is the direct substitute for the UCC2802PW based on identical electrical specifications and regulatory compliance. The UCC2802DTR holds Active product status, ensuring continued availability and supply chain support, whereas the UCC2802PW is in Last Time Buy status.

Selection between these parts depends on PCB layout constraints:

• UCC2802PW (8-TSSOP): 0.173" width, suitable for existing designs with TSSOP footprints
• UCC2802DTR (8-SOIC): 0.154" width, suitable for designs with SOIC footprints

Both parts meet ROHS3 and REACH compliance requirements. The UCC2802DTR offers improved moisture sensitivity characteristics (MSL 1 vs. MSL 2), providing extended shelf life without baking requirements.

Frequently Asked Questions (FAQ)

Q: Can UCC2802DTR directly replace UCC2802PW in existing designs?

A: Electrical substitution is direct due to identical voltage, current, and temperature specifications. PCB layout modification is required due to package differences: 8-TSSOP versus 8-SOIC. Pin configuration remains identical across both packages.

Q: What is the primary reason to substitute UCC2802PW?

A: The UCC2802PW is in Last Time Buy status, indicating discontinued production. The UCC2802DTR maintains identical electrical performance with Active product status for long-term availability.

Q: Are there packaging considerations for substitution?

A: Yes. The 8-TSSOP package (UCC2802PW) has a 0.173" width, while the 8-SOIC package (UCC2802DTR) has a 0.154" width. PCB footprint redesign is necessary. Both are surface mount technologies with identical pin counts and configurations.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both UCC2802PW and UCC2802DTR are ROHS3 Compliant and REACH Unaffected, meeting equivalent regulatory requirements.

Q: What is the difference in moisture sensitivity?

A: UCC2802PW has MSL 2 (1 Year shelf life with baking), while UCC2802DTR has MSL 1 (Unlimited shelf life). This provides UCC2802DTR with superior storage and handling characteristics.

Q: Are the electrical specifications identical?

A: Yes. Input voltage range (-0.3V ~ 6.3V), supply voltage range (8.3V ~ 11V), supply current (500 µA), and operating temperature range (-40°C ~ 125°C) are identical across both parts.