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Texas Instruments UCC28880D | Demoboard PMP21750
Tiny, universal line to 3.3 V/30 mA reference design for circuit breakers
Overview
| Topology | Buck Converter |
| Input voltage | 50-250 V |
| Switching frequency | 52-75 kHz |
| Output 1 | 3.3 V / 0.03 A |
| IC revision | A |
Description
Using the UCC28880 FET integrated buck controller, this design provides a universal line to non-isolated 3.3 V/30 mA for arc fault and ground fault circuit Interrupter circuit breaker systems. This tiny design is built on a single-layer PCB in a space optimized 0.680" by 0.480" footprint by implementing a half-bridge rectifier and not requiring a large transformer.
Features
- Integrated Power MOSFET (Switch) Rated to 700-V Drain-to-Source Voltage
- Integrated High-Voltage Current Source for Internal Low-Voltage Supply Generation
- Soft Start
- Self-Biased Switcher (Start Up and Operation Directly from Rectified Mains Voltage)
- Supports Buck, Buck-Boost and Flyback Topologies
- <100-μA Device Quiescent Current
- Robust Performance with Inductor Current Runaway Prevention
- Thermal Shutdown
- Protection
- Current Limit
- Overload and Output Short Circuit
Typical applications
- Appliances, White Goods and LED Drivers
- Low-Side Buck Topology for TRIAC Driver
- Metering, Home Automation, Infrastructure SMPS
- AC-to-DC Power Supplies
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC max.(Ω) | fres(MHz) | Q(%) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LQ SMT Inductor, 680 µH, 0.09 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LQ SMT Inductor | Inductance680 µH | Rated Current0.09 A | Saturation Current0.2 A | DC Resistance16.8 Ω | Self Resonant Frequency3 MHz | Q-Factor45 % |