PMP23421

Multiphase four-switch buck-boost DC/DC converter reference design

Design files

PMP23421

Design files

Overview

This reference design is a digitally controlled, gallium nitride (GaN) based, four-switch buck-boost DC/DC converter used for battery backup (BBU) application. This design has a total of seven phases. Six phases are connected in parallel for battery discharging operation providing up to 8.1kW discharging power. The seventh phase is used for battery charging operation. The converter works in either buck, buck-boost, or boost mode depending on VIN and VOUT voltage, and transitions smoothly between each mode.

Features

One microcontroller controls seven phases simultaneously
Peak current mode control and fast load transient
Multimode operation: buck, buck-boost, boost
Current balancing among each phase
99% peak efficiency
Meets Open Rack Base Version 3 (OCP-V3) 50V BBU specification

Output voltage options	PMP23421.1
Vin (Min) (V)	28.6
Vin (Max) (V)	60
Vout (Nom) (V)	50
Iout (Max) (A)	26
Output Power (W)	1300
Isolated/Non-Isolated	Non-Isolated
Input Type	DC
Topology	Buck Boost- 4 Switch

Data center

Analog-controlled BBU

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Design files & products

Design files

Download ready-to-use system files to speed your design process.

Test report — PMP23421

PDF | HTML

TIDT416.PDF (734 KB)

Test results for the reference design, including efficiency graphs, test prerequisites and more

Assembly drawing — PMP23421

TIDMDC7.PDF (342 KB)

Detailed overview of design layout for component placement

Assembly drawing — PMP23421

TIDMDC6.PDF (448 KB)

Detailed overview of design layout for component placement

Bill of materials (BOM) — PMP23421

TIDMDD0.PDF (180 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

Bill of materials (BOM) — PMP23421

TIDMDD1.PDF (179 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

CAD/CAE symbol — PMP23421

TIDMDC8.ZIP (24793 KB)

Files used for 3D models or 2D drawings of IC components

CAD/CAE symbol — PMP23421

TIDMDC9.ZIP (2084 KB)

Files used for 3D models or 2D drawings of IC components

Gerber file — PMP23421

TIDCGR9.ZIP (3289 KB)

Design file that contains information on physical board layer of design PCB

Gerber file — PMP23421

TIDCGS0.ZIP (686 KB)

Design file that contains information on physical board layer of design PCB

PCB layout — PMP23421

TIDMDC5.PDF (1296 KB)

PCB layer plot file used for generating PCB design layout

PCB layout — PMP23421

TIDMDC4.PDF (3322 KB)

PCB layer plot file used for generating PCB design layout

Schematic — PMP23421

TIDMDC3.PDF (394 KB)

Detailed schematic diagram for design layout and components

Schematic — PMP23421

TIDMDC2.PDF (576 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Analog current-sense amplifiers

INA296A — -5-V to 110-V, bidirectional, 1.1-MHz 8-V/µs ultraprecise current sense amplifier

Data sheet: PDF | HTML

Linear & low-dropout (LDO) regulators

TLV713P — 150-mA, capacitor-free low-dropout voltage regulator with active output discharge & enable

Data sheet: PDF | HTML

High-speed op amps (GBW ≥ 50 MHz)

TLV365-Q1 — Automotive 50-MHz single-supply operational amplifier with rail-to-rail input and output

Data sheet: PDF | HTML

Digital isolators

ISO6521 — Functional isolation dual-channel 1/1 digital isolator

Data sheet: PDF | HTML

Isolated power modules (integrated transformer)

UCC33420 — 5V/5V 1.5W 3kVrms isolated DC-DC module with integrated transformer

Data sheet: PDF | HTML

Gallium nitride (GaN) power stages

LMG3100R017 — 100V 1.7mΩ GaN FET with integrated driver

Data sheet: PDF | HTML

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Hardware development

Daughter card

TMDSCNCD28P65X — F28P65X controlCARD evaluation module

This reference design is a digitally controlled, gallium nitride (GaN) based, four-switch buck-boost DC/DC converter used for battery backup (BBU) application. This design has a total of seven phases. Six phases are connected in parallel for battery discharging operation providing up to 8.1kW (...)

EVM user’s guide: PDF | HTML

Supported products & hardware

Supported products & hardware

Hardware development

Reference design

PMP23421 — Multiphase four-switch buck-boost DC/DC converter reference design

TIDA-010090 — 4-channel, 50A, digital control battery cell tester reference design

TIDM-02017 — Two- and three-wheeler traction inverter reference design

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TMDSCNCD28P65X — F28P65X controlCARD evaluation module

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Hardware development

Reference design

PMP23421 — Multiphase four-switch buck-boost DC/DC converter reference design

TIDA-010090 — 4-channel, 50A, digital control battery cell tester reference design

TIDM-02017 — Two- and three-wheeler traction inverter reference design

TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Top documentation	Type	Title	Format options	Date
*	Test report	Multi-Phase Four-Switch Buck-Boost DC/DC Converter Reference Design	PDF \| HTML	Oct 11, 2024

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IDE, CONFIGURATION, COMPILER OR DEBUGGER

CCSTUDIO — CCStudio™ integrated development environment (IDE)

SOFTWARE DEVELOPMENT KIT (SDK)

C2000WARE-DIGITALPOWER-SDK — DigitalPower software development kit (SDK) for C2000™ MCUs

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