36-60Vin, 350W Slow Drain Modulation Power Converter with PSFB ZTE and HSHB Reference Design

(ACTIVE) PMP7246

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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-up

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Design Files

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Bill of Materials (BOM)

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Parametrics
 PMP7246.1
(Output Voltage 1)
PMP7246.2
(Output Voltage 2)
Vin (Min) (V)3636
Vin (Max) (V)6060
Vout (Nom) (V)3212
Iout (Max) (A)125
Output Power (W)38460
Isolated/Non-IsolatedIsolatedIsolated
Input TypeDCDC
TopologyFull Bridge- Phase ShiftedHalf Bridge- Hard Switched

TI Devices (9)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA194  -16V to +80V, Low-/High-side, High-Speed, Voltage Output Current Sense Amplifier  Current sense amplifiers  Sample & Buy Not Available
LM317L  3/8 Pin 100mA Adjustable Positive Regulator  Power management  Sample & Buy Not Available
LM5039  Half-Bridge PWM Controller with Advanced Current Limit  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
TL431  2% Accuracy Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy Not Available
TLV271  550-uA/Ch 3-MHz Rail-to-Rail Output Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV272  550-uA/Ch 3-MHz Rail-to-Rail Output Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
UCC27200A  120-V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver   Gate Drivers  Sample & Buy Not Available
UCC28950  Green Phase-Shifted Full-Bridge Controller with Synchronous Rectification  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC37324  Dual 4 A Peak High Speed Low-Side Power MOSFET Drivers  Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
INA194 Download Download
LM317L Download Download
Download -
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Download Download
LM5039 Download Download
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TL431 Download Download
Download Download
Download -
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TLV271 Download Download
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TLV272 Download Download
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UCC27200A Download Download
Download -
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UCC28950 Download -
UCC37324 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 949 24 Nov 2014 52
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 216 24 Nov 2014 39
PDF 29 24 Nov 2014 29
PDF 309 24 Nov 2014 93

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