UCC2800NG4 Equivalent & Substitute Parts

Part Overview

The UCC2800NG4 is a Power Supply Controller PWM Controller IC in 8-PDIP packaging manufactured by Texas Instruments. This device operates as a multi-topology PWM controller for power management applications with input voltage range of -0.3V to 6.3V and supply voltage of 6.9V to 11V. The UCC2800NG4 is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current availability and product status requirements.

Substiute Parts

UCC2800NG4

Texas InstrumentsIn Stock: 806UCC2800NG4 Datasheet

Current PartRFQ

UCC2800D

Texas InstrumentsIn Stock: 2319UCC2800D Datasheet

MFR RecommendedRFQ

MIC38HC43YN

Microchip TechnologyIn Stock: 774MIC38HC43YN Datasheet

MFR RecommendedRFQ

UC2842BN

STMicroelectronicsIn Stock: 2676UC2842BN Datasheet

MFR RecommendedRFQ

UC2843BN

STMicroelectronicsIn Stock: 20539UC2843BN Datasheet

MFR RecommendedRFQ

UC3842BN

STMicroelectronicsIn Stock: 55131UC3842BN Datasheet

MFR RecommendedRFQ

UC3843BN

STMicroelectronicsIn Stock: 60377UC3843BN Datasheet

MFR RecommendedRFQ

UCC2813N-0

Texas InstrumentsIn Stock: 2190UCC2813N-0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UCC2800NG4 is determined by the following critical parameters:

Primary Substitution Criteria:

• Package compatibility: 8-DIP (0.300", 7.62mm) form factor for through-hole mounting
• Voltage supply range: Minimum 6.9V to 11V operational window
• Current supply specification: 500 µA
• PWM controller functionality for multi-topology power supply applications
• Operating temperature range: -40°C to 125°C preferred for industrial applications
• RoHS3 compliance and MSL Level 1 rating

Substitution Categories:

1. Manufacturer Recommended Direct Substitute (Active Product): UCC2800D - Same base product number with surface-mount SOIC packaging alternative
2. Functional Equivalents (Active Products): MIC38HC43YN, UC2842BN, UC2843BN, UC3842BN, UC3843BN - Alternative PWM controller ICs with compatible electrical specifications and 8-DIP packaging
3. Parametric Equivalent (Obsolete): UCC2813N-0 - Same manufacturer series with similar topology support

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Manufacturer): UCC2800D is the manufacturer-recommended substitute from Texas Instruments. It maintains identical electrical specifications (6.9V ~ 11V supply voltage, 500 µA supply current, -40°C ~ 125°C operating range) and is currently in active production status. The primary difference is surface-mount SOIC packaging instead of through-hole DIP. This substitution requires PCB redesign for mounting compatibility.

For Through-Hole Pin-Compatible Replacement: MIC38HC43YN (Microchip Technology), UC2843BN (STMicroelectronics), and UC3843BN (STMicroelectronics) maintain 8-DIP through-hole packaging identical to the UCC2800NG4. All three are active products with ROHS3 compliance and MSL Level 1 rating. These parts support extended supply voltage ranges (7.6V ~ 20V or 7.6V ~ 30V) and are suitable for applications where the UCC2800NG4's 6.9V ~ 11V window is exceeded. Operating temperature ranges vary: MIC38HC43YN operates to 85°C, while UC2843BN and UC3843BN operate to 70°C (junction temperature).

For Industrial Temperature Range Applications: MIC38HC43YN provides the closest operating temperature match (-40°C ~ 85°C) among active through-hole alternatives, though it does not reach the UCC2800NG4's 125°C maximum.

Compliance Verification: All recommended substitutes maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with existing supply chain and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can UCC2800D be used as a direct pin-for-pin replacement? A: UCC2800D is electrically equivalent but uses 8-SOIC surface-mount packaging instead of 8-DIP through-hole. Direct PCB substitution is not possible without redesign. However, it is the manufacturer-recommended active substitute from Texas Instruments.

Q: Which substitute maintains the widest operating temperature range? A: The UCC2800NG4 operates from -40°C to 125°C. Among active substitutes, MIC38HC43YN provides -40°C to 85°C, which covers the lower temperature extreme but not the full upper range. UC3842BN and UC3843BN operate from 0°C to 70°C, limiting low-temperature performance.

Q: Are all recommended substitutes RoHS3 compliant? A: Yes. All substitute parts listed (UCC2800D, MIC38HC43YN, UC2842BN, UC2843BN, UC3842BN, UC3843BN, and UCC2813N-0) are ROHS3 compliant with MSL Level 1 rating.

Q: What is the key difference between UC2843BN and UC3843BN? A: Both are STMicroelectronics boost/flyback PWM controllers in 8-DIP packaging with identical supply voltage range (7.6V ~ 30V), duty cycle (96% max), and frequency control features. The primary difference is operating temperature: UC2843BN operates -25°C to 85°C, while UC3843BN operates 0°C to 70°C.

Q: Can MIC38HC43YN replace UCC2800NG4 in all applications? A: MIC38HC43YN is functionally compatible with 8-DIP through-hole mounting and supports step-up, step-down, and step-up/step-down topologies. However, its maximum operating temperature is 85°C versus the UCC2800NG4's 125°C. Verify application temperature requirements before substitution.

Q: Why is UCC2813N-0 listed as a parametric equivalent rather than a recommended substitute? A: UCC2813N-0 is classified as obsolete, similar to the UCC2800NG4. While it provides parametric equivalence with compatible 8-DIP packaging and 6.9V ~ 12V supply range, active product alternatives are preferred for new designs and ongoing production.

Q: What inventory considerations apply to these substitutes? A: UCC2800D (2,276 pcs), UC3843BN (60,300 pcs), and UC3842BN (55,100 pcs) have substantial inventory availability. MIC38HC43YN (685 pcs) and UC2843BN (20,527 pcs) provide moderate stock levels. UCC2813N-0 (2,100 pcs) and UCC2800NG4 (786 pcs) have limited availability as obsolete products.