DC fast charging station

Products and reference designs

DC fast charging station

Block diagram

Overview

Our integrated circuits and reference designs help you create smarter and more efficient DC fast charging stations that charge electric vehicles (EVs). Whether it is a power factor correction (PFC) stage, DC/DC power stage design or the central control system, we have the right ingredients to design an efficient DC charging station.

Design requirements

DC fast charging station designs require expertise to achieve:

  • Accurate sensing and control of power output directly to the vehicle battery.
  • High-power density to support faster and higher power charging standards.
  • Efficient PFC and DC/DC conversion to reduce losses.
  • Human machine interface (HMI) to ease user interaction with the system.

Block diagram

Find products and reference designs for your system.

DC fast charging station

RCD/RCM: IEC 62752 / IEC 62955 RCD/RCM: IEC 62752 / IEC 62955 Front-end communication EVSE <-> EV CCS: IEC 61851, ISO 15118... Front-end communicationEVSE <-> EVCCS: IEC 61851, ISO 15118CHAdeMO: ISO 11898GB/T CHAoJI: SAE J1939 DC/DC power topologies Uni-directional Bi-directional Convent... DC/DC power topologiesUni-directional Bi-directional Conventional PSFB Dual active bridgeResonant LLC DAB in CLLLC mode Grid Grid Charger connector Chargerconnector Back-end communication EVSE <-> Charge Mngt Syst OCPP: IEC 61... Back-end communicationEVSE <-> Charge Mngt SystOCPP: IEC 61590-90-8 Power board wired interface Power board wired interface CAN CAN RS-485 RS-485 RS-232 RS-232 AC/DC power topologies Uni-directional Bi-directional 2-L PFC... AC/DC power topologiesUni-directional Bi-directional2-L PFC 3-L T-type PFC / inverter3-L Vienna PFC 3-L ANPC PFC / inverter AC & DC E-Meter EE AC & DCE-MeterEE Grid, charger output Grid,charger output +12V +5V +3.3V +1.8V -12V +12V+5V+3.3V+1.8V-12V DC rail DC rail Controller fan Controller fan Fan motor driver Fan motor driver Front-end wired interface Front-end wired interface Pilot wire Pilot wire HPGP Module HPGPModule CAN CAN Power board self diagnostics/monitoring Power board self diagnostics/monitoring Temp sensors Temp sensors SVS SVS Controller self diagnostics/monitoring Controller self diagnostics/monitoring Temp sensors Temp sensors SVS SVS ISO rail (gate drivers) ISO rail (gate drivers) DC rail DC rail Inter-module wired interface Inter-module wired interface CAN CAN RS-232 RS-232 RS-485 RS-485 USB USB Controller signal isolation Controller signal isolation Digital isolator Digital isolator Back-end wired interface Back-end wired interface Controller digital processing Controller digital processing MCU/MPU MCU/MPU Gates & buffers Gates & buffers Voltage translator Voltage translator RTC RTC USB access USB access Ethernet Ethernet ESD ESD HMI input user interface HMI inputuser interface IO expansion IO expansion Touch controller Touch controller Light sensor Light sensor DC rail DC rail +5V +3.3V +1.8V +5V+3.3V+1.8V Power board input power protection Power board input power protection eFuse eFuse Power board non-isolated DC/DC power supply Power board non-isolated DC/DC power supply Sequencer Sequencer DC/DC VTT DC/DC VTT Low noise power Low noise power DC/DC DC/DC Isolated AC/DC power supply Isolated AC/DC power supply Isolated AC/DC Isolated AC/DC Isolated DC/DC power supply Isolated DC/DC power supply Isolated DC/DC Isolated DC/DC Controller input power protection Controller input power protection eFuse eFuse Controller non-isolated DC/DC power supply Controller non-isolated DC/DC power supply Sequencer Sequencer DC/DC VTT DC/DC VTT Low noise power Low noise power DC/DC DC/DC Ideal diode Ideal diode Supercap Supercap Bus current & voltage sense Bus current & voltage sense Amp Amp Amp Amp Current sensor Current sensor Current Current Voltage Voltage DC/DC power stage DC/DC power stage Gates & buffers Gates & buffers Gate drivers Gate drivers Power FETs PowerFETs Digital isolator Digital isolator Output current & voltage sense Output current & voltage sense Amp Amp Amp Amp Current sensor Current sensor Current Current Voltage Voltage Relay control power stage Relay control power stage Relay Relay Relay Driver Relay Driver Insulation monitor Insulationmonitor PE PE Solid state relay Solid state relay Amp Amp (optional) Analog front end (optional)Analog front end Reference Reference ADC ADC Power board signal isolation Power board signal isolation Digital isolator Digital isolator Power board fan Power board fan Fan motor driver Fan motor driver HMI output user interface HMI output user interface Audio DAC Audio DAC LED driver LED driver LCD controller LCD controller Audio driver Audio driver Back-end wireless interface Back-end wireless interface Sub-1Ghz Sub-1Ghz Wi-Fi Wi-Fi 3G/4G/LTE (optional) 3G/4G/LTE (optional) HMI wireless interface HMI wireless interface NFC NFC Bluetooth Bluetooth Input current & voltage sense Input current & voltage sense Amp Amp Amp Amp Current sensor Current sensor Current Current Voltage Voltage AC/DC power stage AC/DC power stage Gates & buffers Gates & buffers Gate drivers Gate drivers Power FETs PowerFETs Digital isolator Digital isolator Weld detector Weld detector Digital isolator Digital isolator Plug lock driver Plug lock driver H-Bridge Driver H-Bridge Driver Power digital processing Power digital processing MCU MCU RTC RTC Gates & buffers Gates & buffers Voltage translator Voltage translator Residual current monitor Residual current monitor Comp Comp Amp Amp Logic Logic H-Bridge Driver H-Bridge Driver Power board signal input/output protection Power board signal input/output protection ESD ESD Front-end signal input/output protection Front-end signal input/output protection ESD ESD Controller signal input/output protection Controller signal input/output protection ESD ESD Controller memory Controller memory

AC/DC power stage

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The first power stage within a DC charging pile is an AC/DC stage. This stage preforms power factor correction and provides a high voltage DC rail to then be used by the next stage.

Glue logic is used to connect the power DSP to the gate drivers in order to correctly set logic voltage levels, active high or low settings, and serve as a buffer for multiple GPIO outputs.

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Power management (27)
Low-side drivers
  • UCC27511A4-A/8-A single-channel gate driver with 5-V UVLO, split outputs, 5-V IN handling
    Data sheet: PDF | HTML
  • UCC276245A/5A dual-channel gate driver with 4V UVLO, 30V VDD and low propagation delay
    Data sheet: PDF | HTML
  • UCC2761410-A/10-A single-channel gate driver with 4-V UVLO, 30-V VDD and low prop delay
    Data sheet: PDF | HTML
  • UCC27517A4-A/4-A single-channel gate driver with 5-V UVLO and negative input voltage handling
    Data sheet: PDF | HTML
  • UCC275255-A/5-A dual-channel gate driver with 5-V UVLO, enable, and inverting/non-inverting inputs
    Data sheet: PDF | HTML
  • UCC275114-A/8-A single-channel gate driver with 5-V UVLO, split outputs, and 13-ns Prop delay
    Data sheet: PDF | HTML
Isolated gate drivers
  • UCC21551-Q1Automotive, 4A/6A 5kVRMS dual-channel isolated gate driver with EN and DT pins for IGBT and SiC
    Data sheet: PDF | HTML
  • UCC213303kVRMS 4A/6A two-channel isolated gate driver with disable logic and programmable deadtime
    Data sheet: PDF | HTML
  • UCC215504A/6A, 5-kVRMS dual-channel isolated gate driver with DIS and DT pins for IGBT
    Data sheet: PDF | HTML
  • UCC215514A/6A 5kVRMS dual-channel isolated gate driver with EN and DT pins for IGBT and SiC
    Data sheet: PDF | HTML
  • UCC53505A/5A single-channel isolated gate driver with Miller clamp or split outputs and 8V or 12V UVLO
    Data sheet: PDF | HTML
  • UCC215215.7kVrms, 4A/6A dual-channel isolated gate driver with dual input, enable, 8V UVLO & LGA pack
    Data sheet: PDF | HTML
Half-bridge drivers
  • UCC27282-Q1Automotive 3-A, 120-V half bridge driver with 5-V UVLO, interlock and enable
    Data sheet: PDF | HTML
  • UCC272823-A, 120-V half-bridge gate driver with 5-V UVLO, interlock and enable
    Data sheet: PDF | HTML
  • UCC277121.8-A/2.8-A, 620V half bridge driver with interlock
    Data sheet: PDF | HTML
  • UCC27211A4-A, 120-V half bridge gate driver with 8-V UVLO and negative voltage handling
    Data sheet: PDF | HTML
  • UCC277144-A, 600-V half bridge gate driver
    Data sheet: PDF | HTML
Isolated power modules (integrated transformer)
  • UCC334205V/5V 1.5W 3kVrms isolated DC-DC module with integrated transformer
    Data sheet: PDF | HTML
  • DCH010505SMiniature, 1W, 3kVDC Isolated DC/DC Converters
    Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)
  • UCC24612High-frequency multi-mode synchronous rectifier controller
    Data sheet: PDF | HTML
  • UCC28742High-Efficiency Flyback Controller with 1% Output regulation accuracy
    Data sheet: PDF | HTML
  • UCC28782High-density flyback controller for active-clamp (ACF) and zero-voltage switching (ZVS) topologies
    Data sheet: PDF | HTML
  • UCC28C55Industrial, 30-V, low-power current-mode PWM controller, 8.4-V/7.6-V UVLO, 50% duty cycle
    Data sheet: PDF | HTML
  • UCC286008-pin quasi resonant Flyback green mode controller
    Data sheet: PDF | HTML
  • UC2845Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, -40C to 85C
    Data sheet: PDF | HTML
Gallium nitride (GaN) power stages
  • LMG3410R070600-V 70mΩ GaN with integrated driver and protection
    Data sheet: PDF | HTML
  • LMG3422R030600-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting
    Data sheet: PDF | HTML
Isolation (6)
Digital isolators
  • ISO7840Highest isolation rating, quad-channel, 4/0, reinforced digital isolator
    Data sheet: PDF | HTML
  • ISO7842Highest isolation rating, quad-channel, 2/2, reinforced digital isolator
    Data sheet: PDF | HTML
  • ISO6762General purpose, 50-Mbps, six-channel (4/2) digital isolator
    Data sheet: PDF | HTML
  • ISO6760General purpose, 50-Mbps, six-channel (6/0) digital isolator
    Data sheet: PDF | HTML
  • ISO7721Robust EMC, dual-channel, 1/1, reinforced digital isolator
    Data sheet: PDF | HTML
  • ISO7741Robust EMC, quad-channel, 3/1, reinforced digital isolator
    Data sheet: PDF | HTML
Logic & voltage translation (6)
Noninverting buffers & drivers
  • PMP23223Smart isolated gate driver with bias supply reference design
    Test report: PDF | HTML Schematic: PDF
  • TIDA-00779230-V, 3.5-kW PFC with >98% Efficiency, Optimized for BOM and Size Reference Design
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-01021011-kW, bidirectional, three-phase ANPC based on GaN reference design
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-0160611-kW, bidirectional three-phase three-level (T-type) inverter and PFC reference design
    Design guide: PDF | HTML Schematic: PDF
  • TIDM-1000Vienna Rectifier-Based Three Phase Power Factor Correction Reference Design Using C2000 MCU
    Design guide: PDF | HTML Schematic: PDF
  • TIDM-1007High efficiency GaN CCM totem pole bridgeless Power Factor Correction (PFC) reference design
    Design guide: PDF | HTML Schematic: PDF
  • TIDM-2PHILPFCTwo-Phase Interleaved Power Factor Correction Converter Reference Design with Power Metering
    Design guide: PDF Schematic: PDF Schematic: PDF
Hardware development
Evaluation board
  • UCC21710QDWEVM-025 Driving and protection evaluation board for SiC and IGBT transistors and power modules

Technical documentation

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Type Title Date
White paper Impact of an isolated gate driver (Rev. A) 28 Feb 2019
White paper Maximizing power for Level 3 EV charging stations 22 Jun 2018
White paper Taking charge of electric vehicles – both in the vehicle and on the grid (Rev. A) 17 Jun 2020
Application note Power Topologies in Electric Vehicle Charging Stations PDF | HTML 15 Dec 2020
Application note Comparative Analysis of Two Different Methods for Gate-Drive Current Boosting (Rev. A) PDF | HTML 11 May 2022
Application note Using a Single-Output Gate-Driver for High-Side or Low-Side Drive (Rev. B) PDF | HTML 08 Sep 2023

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