TIDA-00653

Non-Isolated Bi-Directional Converter Reference Design for Battery Charging Applications

Design files

TIDA-00653

Design files

Overview

TIDA-00653 is a non-isolated 48 to 12-V bi-directional converter reference design for 48V battery applications enabled by the UCD3138 digital power controller. The design has the flexibility to work in either a ZVS transition-mode topology to optimize light-load efficiency, or a hard-switching topology for a simple system design. The bi-directional converter features auto-phase shedding, offset for light-load, and adaptive dead-time optimization for compounding efficiency gains greater than 96%. Due to the significant efficiency improvements, heat loss is reduced and no air or liquid cooling are needed automotive applications. Additionally, the use of the UCD3138 high-control frequency controller and hardware-based state machine enable a small form factor and frees the system CPU for other functions such as battery management.

Features

ZVS Transition Mode for light load efficiency
Near zero latency battery backup ( < 9 uS) to avoid power disturbances in your applications
96% efficiency over wide operating conditions for industry leading battery up time
Reduced EMI filter volume for a compact design

Industrial

Analog-controlled BBU

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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

Design guide — TIDA-00653

TIDUBM6.PDF (3694 K)

Reference design overview and verified performance test data

Schematic — TIDA-00653

TIDRL78.PDF (888 K)

Detailed schematic diagram for design layout and components

Bill of materials (BOM) — TIDA-00653

TIDRL79.PDF (86 K)

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

CAD/CAE symbol — TIDA-00653

TIDRVV8.ZIP (25007 K)

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

Gerber file — TIDA-00653

TIDCC18.ZIP (5339 K)

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

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCD3138 — Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs

Data sheet: PDF | HTML

AC/DC & DC/DC controllers (external FET)

UCD3138064 — Highly-Integrated Digital Controller for Isolated Power with 64kB Memory

Data sheet: PDF | HTML

AC/DC & DC/DC controllers (external FET)

UCD3138064A — Highly Integrated Digital Controller for Isolated Power

Data sheet: PDF | HTML

AC/DC & DC/DC controllers (external FET)

UCD3138128 — Highly-Integrated Digital Controller for Isolated Power

Data sheet: PDF | HTML

AC/DC & DC/DC controllers (external FET)

UCD3138128A — Highly-Integrated Digital Controller For Isolated Power

Data sheet: PDF | HTML

AC/DC & DC/DC controllers (external FET)

UCD3138A — UCD3138A Highly Integrated Digital Controller for Isolated Power

Data sheet: PDF | HTML

AC/DC & DC/DC controllers (external FET)

UCD3138A64 — Highly-Integrated Digital Controller for Isolated Power

Data sheet: PDF | HTML

AND gates

SN74AHC1G08 — 1-ch, 2-input 2-V to 5.5-V high-speed (9 ns) AND gate

Data sheet: PDF | HTML

CAN transceivers

SN65HVD233 — 3.3 V CAN Transceiver with Standby Mode, Loopback

Data sheet: PDF | HTML

Comparators

TLV3202 — 5.5-V, high-speed, dual push-pull comparator

Data sheet: PDF | HTML

Half-bridge drivers

UCC27201A — 3-A, 120-V half bridge gate driver with 8-V UVLO and negative voltage handling

Data sheet: PDF | HTML

Linear & low-dropout (LDO) regulators

TLV1117 — 800-mA, 15-V, linear voltage regulator

Data sheet: PDF | HTML

MOSFETs

CSD17570Q5B — 30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.92 mOhm

Data sheet: PDF | HTML

Noninverting buffers & drivers

SN74LVC2G34 — 2-ch, 1.65-V to 5.5-V buffers

Data sheet: PDF | HTML

Precision op amps (Vos<1mV)

OPA2211A — 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier

Data sheet: PDF | HTML

Start development

Software

Firmware

UCD3138FW-BIDI — Bi-Directional Firmware

UCD3138 non isolated bi-directional switching converter quickly gets a designer through evaluation to production in power supply designs based on a Wide Vin non isolated bi-directional topology by providing all-inclusive firmware with ZVS Transition mode support.

Supported products & hardware

Supported products & hardware

Products

AC/DC & DC/DC controllers (external FET)

UCD3138 — Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs

UCD3138064 — Highly-Integrated Digital Controller for Isolated Power with 64kB Memory

UCD3138064A — Highly Integrated Digital Controller for Isolated Power

UCD3138128 — Highly-Integrated Digital Controller for Isolated Power

UCD3138A — UCD3138A Highly Integrated Digital Controller for Isolated Power

UCD3138A64 — Highly-Integrated Digital Controller for Isolated Power

Software

Application software & framework

FUSION-DIGITAL-POWER-STUDIO — Fusion Digital Power Studio

Firmware

UCD3138FW-BIDI — Bi-Directional Firmware

UCD3138 non isolated bi-directional switching converter quickly gets a designer through evaluation to production in power supply designs based on a Wide Vin non isolated bi-directional topology by providing all-inclusive firmware with ZVS Transition mode support.

Technical documentation

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	Type	Title		Date
*	Design guide	Bidirection DC-DC Converter Design Guide		Mar. 18, 2016

Related design resources

Software development

FIRMWARE

UCD3138FW-BIDI — Non-isolated bi-directional converter with UCD3138 Integrated Digital Controllers

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