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Texas Instruments UCC28950 | Demoboard PMP7246
36-60Vin, 350W Slow Drain Modulation Power Converter with PSFB ZTE and HSHB Reference Design
Overview
| Topology | Full-Bridge Converter symmetrical isolated |
| Input voltage | 36-60 V |
| Output 1 | 32 V / 11 A |
| IC revision | B |
Description
This is a 350W High Speed Full Bridge Phase Shift ZVT Synchronous Rectification DC/DC reference design. It is built for telecom applications to supply a RF Power Amplifier stage. The design is utilizing UCC28950 voltage mode forward and average current limitation backward converter (two quadrant converter). It can modulate output voltage from 20V to 32V within 200us (at maximum 200uF of capacitive load) – so called: slow drain modulation. The converter has full load steps capability as well. It is a very small design for high sophisticated telecom applications. The system can also be used for all other two quadrant applications. Input voltage range: 36VDC-60VDC; Output voltage: 20VDC…32VDC (adjustable); Output current: 12A (18Apeak).
Features
- Greater than 90% efficiency at full load (24V/0.5A)
- Less than 80mW of stand-by power consumption under no load
- Constant Current regulation feature of UCC28700DBV ensures output short-circuit protection
- Fast Start-upREMARK: Schematic and BOM is added
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCI SMT Flat Wire High Current Inductor, 1.9 µH, 42.1 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance1.9 µH | Performance Rated Current42.1 A | Saturation Current @ 10%23 A | Saturation Current @ 30%52 A | DC Resistance1.2 mΩ | Self Resonant Frequency51 MHz | MaterialWE-PERM 2 | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 3.7 µH, 18.3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance3.7 µH | Performance Rated Current18.3 A | Saturation Current @ 10%7 A | Saturation Current @ 30%16 A | DC Resistance4.9 mΩ | Self Resonant Frequency26 MHz | MaterialWE-PERM | ||||
| WE-HCI SMT Flat Wire High Current Inductor, 15 µH, 14.1 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance15 µH | Performance Rated Current14.1 A | Saturation Current @ 10%10.75 A | Saturation Current @ 30%14 A | DC Resistance9 mΩ | Self Resonant Frequency14 MHz | MaterialMnZn |