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Texas Instruments UCC28742 | Demoboard UCC28742EVM-001
Using the UCC28742EVM-001 10-W Converter User's Guide
Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Switching frequency | 80-130 kHz |
| Output 1 | 5 V / 2 A |
| IC revision | A |
Description
The UCC28742EVM-001 is a 10-W evaluation module for evaluating an off-line power converter applications. The EVM meets CoC tier 2 and DoE Level 6 efficiency and standby power requirements. It is intended for evaluation purposes and is not intended to be an end product. The UCC28742EVM-001 converters 85-VRMS to 265-VRMS input voltage down to 5-VDC, with a 2.1-A current limit.
Features
- Opto-Coupled Feedback Enables up to 1% Regulation
- Accurate Current Limit with Overload Timeout Protection and Delayed Hiccup Response Resonant-Ring Valley-Switching Operation for Highest Overall Efficiency
- 80-kHz Maximum Switching Frequency
- Frequency Dithering to Ease EMI Compliance
- Clamped Gate-Drive Output for MOSFET
- Ultra-Low Start-Up Current and Large VDD Hysteresis
- High Value Start-Up Resistor
- Low Bias Capacitance
- Fault Protections
- Input Low Line
- Output Over-Voltage
- Over-Current
- Short-Circuit
- SOT23-6 Package
Typical applications
- Smart Electricity Meters
- Industrial and Medical AC-to-DC Power Supplies/ Bias Supply for UPS, Server PSU, etc./ Power Supply for Cable Modem, Television, Set-Top Box, and Wireless Routers/ AC-to-DC Power Supply for Appliances
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-CBF SMT EMI Suppression Ferrite Bead, 300 Ω, 330 Ω | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | Impedance @ 100 MHz300 Ω | Maximum Impedance330 Ω | Maximum Impedance110 MHz | Rated Current 23000 mA | DC Resistance0.06 Ω | TypeHigh Current | ||||
 | 750315841 | Transformer, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | – | – | – | – | – |