Energy Storage Circuit for Uninterrupted Power Supply and Extending Alkaline Battery Lifetime

(ACTIVE) PMP9771

Description & Features

Technical Documents

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Description

An alkaline battery and a boost converter are usually used to power the load system which requires high voltage, such as the motor driver in insulin pump. In this reference design, a lithium polymer battery is added to the output of the boost converter to absorb the pulse load current and extend the alkaline battery lifetime. The designed circuit also benefits uninterrupted power supply when the alkaline battery is out of charge.

Features
  • Extend the alkaline battery lifetime
  • Uninterrupted power supply for important load
  • Support low output current capability boost converter
  • This circuit is tested on an evaluation board

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Schematic/Block Diagram

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Design Files

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Parametrics
 PMP9771.1
(Output Voltage 1)
Vin (Min) (V).7
Vin (Max) (V)3.2
Vout (Nom) (V)4
Iout (Max) (A).15
Output Power (W).6
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBoost- Synchronous

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS61220  Low Input Voltage, 0.7V Boost Converter with 5.5μA Quiescent Current  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS61220 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
PDF 736 15 Dec 2014
Design files (5)
Title Abstract Type Size (KB) Date
ZIP 675 19 Dec 2014
ZIP 4929 19 Dec 2014
PDF 297 19 Dec 2014
PDF 80 19 Dec 2014
PDF 56 19 Dec 2014

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