>95% Efficiency, 1-kW analog control AC/DC reference design for 5G telecom rectifier
TIDA-010081
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Key Document
Description
This compact, high efficiency reference design with a 54-V DC, 1000-W output targets 5G telecom power and industrial AC/DC power supplies. The circuit consists of a front-end continuous conduction mode (CCM) power factor correction (PFC) circuit based on the UCC28180, followed by a robust LLC stage for an isolated DC/DC converter based on the UCC256403. For high efficiency needs, the UCC24624 handles synchronous rectification. This design uses an auxiliary power supply flyback with the UCC28911, which has an internal high-voltage MOSFET. This design enables 95.9% peak efficiency and allows the system to work without forced cooling. The whole system has low iTHD, with 30% load at <12%, 50% load at <8%, 100% load at <5.5%, and good load transient performance.
Features
- Peak efficiency of 95.9% at 230-V AC and 95% across 30%~100% load
- CCM PFC and half bridge LLC based (UCC28180 and UCC256403)
- Low iTHD: 30% load at <12%, 50% load at <8%, 100% load at <5.5%
- Good load transient performance at less than 1% regulation
- Meets ±1% accuracy for input power meter across whole load range
- Passive cooling with sealed metal case
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Schematic/Block Diagram
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Design Guide
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TI Devices (12)
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| Sample & Buy |
Design Kits & Evaluation Modules |
| ATL431 |
2.5V low-Iq adjustable precision shunt regulator |
Voltage references |
Sample & Buy |
View Design Kits & Evaluation Modules |
| INA180 |
26V current sense amplifier for cost-sensitive systems |
Current sense amplifiers |
Sample & Buy |
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| LM5180 |
65-VIN PSR flyback converter with 100-V, 1.5-A integrated power MOSFET |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
View Design Kits & Evaluation Modules |
| MSP430I2021 |
16MHz MCU with two 24-bit Sigma-Delta ADCs, two 16-bit High Res Timers, 32KB flash, 2KB RAM |
Microcontrollers (MCU) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| TLV9002 |
2-Channel, 1MHz, RRIO, 1.8V to 5.5V Operational Amplifier for Cost-Optimized Systems |
Operational amplifiers (op amps) |
Sample & Buy |
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| TLV9101 |
Single 1MHz, 16-V rail-to-rail input/output, low-offset voltage, low-power op amp |
Operational amplifiers (op amps) |
Sample & Buy |
Not Available |
| TPS560430 |
SIMPLE SWITCHER® 36-V, 600-mA Buck Regulator With High-Efficiency Sleep Mode |
Step-down (buck) |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC24624 |
High frequency Dual Synchronous Rectifier Controller for LLC Converter |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC256403 |
LLC resonant controller with ultra-low power and ultra-quiet standby operation |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC27517 |
4A/4A Single Channel High-speed Low-side Gate Driver |
Gate drivers |
Sample & Buy |
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| UCC28180 |
8-Pin Continuous Conduction Mode (CCM) PFC Controller |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
View Design Kits & Evaluation Modules |
| UCC28911 |
700V Flyback Switcher with Constant-Voltage Constant-Current and Primary-side Regulation |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
View Design Kits & Evaluation Modules |
CAD/CAE symbols
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Technical Documents
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User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 2931 |
11 Nov 2019
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Design files (6)
| | ZIP | 587 |
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| | ZIP | 9928 |
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| | PDF | 972 |
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| | PDF | 308 |
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| | ZIP | 164 |
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| | PDF | 521 |
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