28Vdc Input Super Cap Charger with Boost Converter for Bus Holdup Reference Design

(ACTIVE) PMP7327

Description & Features

Technical Documents

Support & Training

Order Now


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

Key Document

Description

This reference design uses the BQ24640 super cap charging controller to charge a large bank of super caps to a voltage below the input bus voltage. During an input bus dropout, the energy from the super caps is used to power a boost converter that can supply 10A of output current at 26.2V. This output can be used to hold up the bus voltage for up to 10 seconds (260W for 10 sec).

Features
  • Boost Converter efficiency greater than 95% at Vin = 18V and 1A - 10A loads
  • Boost holdup supports 28V bus for longer than 27 seconds using a large 28F super cap bank while delivering 260W
  • Super cap charger provides a constant 3A charge current for a controlled startup time
  • Low cost design requires less than 100mm x 100mm

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


  




Parametrics
 PMP7327.1
(Output Voltage 1)
PMP7327.2
(Output Voltage 2)
Vin (Min) (V)26.612
Vin (Max) (V)29.425
Vout (Nom) (V)2526.2
Iout (Max) (A)310
Output Power (W)75262
Isolated/Non-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDC
TopologyBuck- SynchronousBoost- Non Sync

TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
BQ24640  High Efficiency Synchronous Switch-Mode Battery Charge Controller for Super Capacitor  Battery Management Products  Sample & Buy View Design Kits & Evaluation Modules
TPS40210  Wide Input Range Current Mode Boost Controller   Step-Up (Boost)  Sample & Buy View Design Kits & Evaluation Modules
UCC27324  Dual 4 A Peak High Speed Low-Side Power MOSFET Drivers  MOSFET and IGBT Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules

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 TI Recommends
PDF 3459 28 Sep 2015 197
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 40 28 Sep 2015 40
PDF 63 28 Sep 2015 32
ZIP 297 28 Sep 2015 63
PDF 690 28 Sep 2015 49
PDF 50 28 Sep 2015 59
PDF 48 28 Sep 2015 230


Support & Training

TI E2E Community

As a member of  myTI you can join the TI E2E™ Community  where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Content is provided "AS IS" by the respective TI and Community contributors and does not constitute TI specifications. See  Terms of use.

Engage in the Community

Blogs

Wikis

Visit the TI Wiki