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UCC2802DG4 Equivalent & Substitute Parts
Part Overview
The UCC2802DG4 is a Power Supply Controller PWM Controller IC in 8-SOIC packaging manufactured by Texas Instruments. This offline switch controller is designed for power management applications requiring pulse-width modulation control. The UCC2802DG4 is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design and production requirements. Active alternatives with compatible electrical and mechanical specifications are available from Texas Instruments and other manufacturers.
Substiute Parts
Key Parameters
| Parameter | UCC2802DG4 Specification |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Power Management (PMIC) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Voltage - Input | -0.3V ~ 6.3V |
| Voltage - Supply | 8.3V ~ 11V |
| Current - Supply | 500 µA |
| Operating Temperature | -40°C ~ 125°C (TA) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Discontinued at DiGi Electronics |
Substitute Part Grouping Explanation
Substitution for the UCC2802DG4 is determined by strict alignment of the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Package / Case: 8-SOIC (0.154", 3.90mm Width) form factor
- Mounting Type: Surface Mount
- Voltage - Supply range compatibility
- Current - Supply specifications
- Operating Temperature range
- RoHS3 Compliance and MSL rating
Substitute Categories:
Category 1: Direct Manufacturer Replacement (Texas Instruments) UCC2802D is the active production equivalent from Texas Instruments with identical electrical specifications and packaging. This part maintains the same voltage supply range (8.3V ~ 11V), current supply (500 µA), and operating temperature range (-40°C ~ 125°C).
Category 2: Cross-Manufacturer PWM Controllers (STMicroelectronics) UC2842BD1, UC2842BD1013TR, UC2843BD1, UC2843BD1013TR, and UC3843BD1013TR are STMicroelectronics alternatives with compatible 8-SOIC packaging and PWM controller functionality. These parts support extended voltage supply ranges (7.6V ~ 30V or 10V ~ 30V) and maintain the same package footprint and surface mount configuration.
Category 3: Alternative Topology Controller (Renesas Electronics) ISL6843IBZ-T from Renesas Electronics Corporation provides boost and flyback regulator control in 8-SOIC packaging with extended voltage supply range (9V ~ 16V) and higher switching frequency capability (up to 2MHz).
Parameter Comparison
| Part Number | Manufacturer | Package / Case | Voltage - Supply | Current - Supply | Operating Temperature | Mounting Type | RoHS Status | MSL | Product Status |
|---|---|---|---|---|---|---|---|---|---|
| UCC2802DG4 | Texas Instruments | 8-SOIC (0.154", 3.90mm Width) | 8.3V ~ 11V | 500 µA | -40°C ~ 125°C (TA) | Surface Mount | ROHS3 Compliant | 1 (Unlimited) | Discontinued |
| UCC2802D | Texas Instruments | 8-SOIC (0.154", 3.90mm Width) | 8.3V ~ 11V | 500 µA | -40°C ~ 125°C (TA) | Surface Mount | ROHS3 Compliant | 1 (Unlimited) | Active |
| ISL6843IBZ-T | Renesas Electronics Corporation | 8-SOIC (0.154", 3.90mm Width) | 9V ~ 16V | — | -40°C ~ 105°C (TA) | Surface Mount | ROHS3 Compliant | 3 (168 Hours) | Active |
| UC2842BD1 | STMicroelectronics | 8-SOIC (0.154", 3.90mm Width) | 10V ~ 30V | — | -25°C ~ 85°C (TA) | Surface Mount | ROHS3 Compliant | 1 (Unlimited) | Active |
| UC2842BD1013TR | STMicroelectronics | 8-SOIC (0.154", 3.90mm Width) | 10V ~ 30V | — | -25°C ~ 85°C (TA) | Surface Mount | ROHS3 Compliant | 1 (Unlimited) | Active |
| UC2843BD1 | STMicroelectronics | 8-SOIC (0.154", 3.90mm Width) | 7.6V ~ 30V | — | -25°C ~ 85°C (TA) | Surface Mount | ROHS3 Compliant | 3 (168 Hours) | Active |
| UC2843BD1013TR | STMicroelectronics | 8-SOIC (0.154", 3.90mm Width) | 7.6V ~ 30V | — | -25°C ~ 85°C (TA) | Surface Mount | ROHS3 Compliant | 3 (168 Hours) | Active |
| UC3843BD1 | STMicroelectronics | 8-SOIC (0.154", 3.90mm Width) | 7.6V ~ 30V | — | 0°C ~ 70°C (TJ) | Surface Mount | ROHS3 Compliant | 1 (Unlimited) | Active |
| UC3843BD1013TR | STMicroelectronics | 8-SOIC (0.154", 3.90mm Width) | 7.6V ~ 30V | — | 0°C ~ 70°C (TJ) | Surface Mount | ROHS3 Compliant | 1 (Unlimited) | Active |
Engineering Selection Recommendations
Primary Recommendation: UCC2802D UCC2802D is the direct active replacement for UCC2802DG4 from Texas Instruments. Both parts share identical electrical specifications including voltage supply range (8.3V ~ 11V), current supply (500 µA), and operating temperature range (-40°C ~ 125°C). The UCC2802D maintains ROHS3 compliance and MSL 1 rating. This part is available in active production status with high inventory levels (992,850 pcs).
Secondary Recommendations: STMicroelectronics UC284x Series UC2843BD1, UC2843BD1013TR, UC3843BD1, and UC3843BD1013TR provide compatible 8-SOIC packaging with extended voltage supply ranges (7.6V ~ 30V). These parts are suitable for applications where the UCC2802DG4's narrower supply voltage window (8.3V ~ 11V) is not a limiting factor. All maintain ROHS3 compliance and surface mount configuration. Operating temperature ranges vary between -25°C ~ 85°C and 0°C ~ 70°C.
Alternative Option: ISL6843IBZ-T ISL6843IBZ-T from Renesas Electronics provides boost and flyback regulator control in 8-SOIC packaging with voltage supply range 9V ~ 16V. This part is suitable for applications requiring higher switching frequency capability (up to 2MHz) and is available in active production status.
All substitute parts maintain ROHS3 compliance and 8-SOIC surface mount packaging required for direct PCB compatibility.
Frequently Asked Questions (FAQ)
Q: Can UCC2802D be used as a direct replacement for UCC2802DG4? A: Yes. UCC2802D is the active production equivalent with identical electrical specifications, packaging, and operating parameters. The primary difference is product status: UCC2802D is active while UCC2802DG4 is discontinued.
Q: What is the key difference between UCC2802D and the STMicroelectronics UC284x series? A: The UCC2802D maintains the original voltage supply specification of 8.3V ~ 11V. The UC2842BD1, UC2843BD1, and UC3843BD1 series support extended voltage supply ranges (7.6V ~ 30V or 10V ~ 30V). Selection depends on your circuit's supply voltage requirements.
Q: Are all substitute parts in the same 8-SOIC package? A: Yes. All listed substitute parts use 8-SOIC (0.154", 3.90mm Width) packaging with surface mount configuration, ensuring PCB footprint compatibility.
Q: What is the significance of MSL (Moisture Sensitivity Level) differences? A: MSL 1 (Unlimited) parts like UCC2802D and UC3843BD1013TR have no moisture sensitivity restrictions. MSL 3 (168 Hours) parts like ISL6843IBZ-T and UC2843BD1 require controlled storage conditions and have a 168-hour floor life after moisture exposure. Select based on your manufacturing and storage environment.
Q: Do all substitute parts meet RoHS3 compliance? A: Yes. All listed substitute parts are ROHS3 compliant, meeting environmental and regulatory requirements equivalent to the original UCC2802DG4.
Q: What operating temperature range should I consider for my application? A: UCC2802D maintains the original range of -40°C ~ 125°C. STMicroelectronics alternatives offer -25°C ~ 85°C or 0°C ~ 70°C ranges. ISL6843IBZ-T operates at -40°C ~ 105°C. Select based on your application's thermal requirements.
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