LTC4071
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LTC4071

Li-Ion/Polymer Shunt Battery Charger System with Low Battery Disconnect

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LTspice LTC4071 - Power Management Download 1.31 KB
Part Models 8
1ku List Price Starting From $2.65
Features
  • Charger Plus Pack Protection in One IC
  • Low Operating Current (550nA)
  • Near Zero Current (<0.1nA) Low Battery Disconnect Function to Protect Batteries from Over-Discharge
  • Pin Selectable Low Battery Disconnect Level: 2.7V or 3.2V
  • 1% Float Voltage Accuracy Over Temperature
  • 50mA Maximum Internal Shunt Current
  • Pin Selectable Float Voltage Options: 4.0V, 4.1V, 4.2V
  • Ultralow Power Pulsed NTC Float Conditioning for Li-Ion/Polymer Protection
  • Suitable for Intermittent, Continuous and Very Low Power Charging Sources
  • High Battery Status Output
  • Thermally Enhanced, Low Profile (0.75mm) 8-lead (2mm × 3mm) DFN and MSOP Packages
Additional Details
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The LTC4071 allows simple charging of Li-Ion/Polymer batteries from very low current, intermittent or continuous charging sources. A near-zero current low battery latching disconnect function protects even the lowest capacity batteries from deep discharge and potentially irreparable damage. The 550nA to 50mA operating current makes charging possible from previously unusable sources. With its low operating current the LTC4071 is well suited to charge low capacity Li-Ion or thin film batteries in energy harvesting applications. The unique architecture of the LTC4071 allows for an extremely simple battery charger solution, requiring just one external resistor.

The LTC4071 offers a pin selectable float voltage with ±1% accuracy. The integrated thermal battery qualifier extends battery lifetime and improves reliability by automatically reducing the battery float voltage at NTC thermistor temperatures above 40°C. The LTC4071 also provides two pin selectable low battery disconnect levels and a high battery status output.

The device is offered in two thermally enhanced packages, a compact low profile (0.75mm) 8-lead (2mm × 3mm) DFN and an 8-lead MSOP package.

Applications

  • Low Capacity, Li-Ion/Polymer Battery Back-Up
  • Thin Film Batteries
  • Energy Scavenging/Harvesting
  • Solar Power Systems with Back-Up
  • Memory Back-Up
  • Embedded Automotive
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file View Data Sheet (Rev.D)
Documentation View All Documentation
LTspice LTC4071 - Power Management Download 1.31 KB
Part Models 8
1ku List Price Starting From $2.65
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LTC4071

Documentation

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Data Sheet

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UPDATED 10/12/2011
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LTC4071: Li-Ion/Polymer Shunt Battery Charger System with Low Battery Disconnect Data Sheet (Rev.D)

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UPDATED 11/07/2011
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LTC4071: ローバッテリ切断機能付きリチウムイオン/ポリマー・バッテリ向けシャント・バッテリ・チャージャ・システム

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User Guide

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UPDATED 10/25/2010
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DC1702A - Demo Manual redirect icon

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Reliability Data

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UPDATED 03/26/2018
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R540 Reliability Data redirect icon

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UPDATED 10/01/2010
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True Grid Independence: Robust Energy Harvesting System for Wireless Sensors Uses Piezoelectric Energy Harvesting Power Supply and Li-Poly Batteries with Shunt Charger redirect icon

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UPDATED 06/01/2020
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Reverse Voltage Protection for Battery Chargers redirect icon

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UPDATED 06/01/2020
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电池充电器的反向电压保护 redirect icon

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Documentation

Technical Documents 5
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Data Sheet 1

LTC4071: Li-Ion/Polymer Shunt Battery Charger System with Low Battery Disconnect Data Sheet (Rev.D)

Reliability Data 1

R540 Reliability Data

User Guide 1

DC1702A - Demo Manual

Application Note 1

Reverse Voltage Protection for Battery Chargers

Technical Articles 1

True Grid Independence: Robust Energy Harvesting System for Wireless Sensors Uses Piezoelectric Energy Harvesting Power Supply and Li-Poly Batteries with Shunt Charger

Product Selector Card 3

Practical Ambient Energy Harvesting for WSNs
LTC4071 - Li-Ion/Polymer Shunt Battery Charger System with Low Battery Disconnect
Practical Ambient Energy Harvesting for WSNs

Thought Leadership Page 1

Green Buildings Get a Boost: Wireless Sensor Nodes as a Key Application for Energy Harvesting

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Video

2017-09-18

08:29

Low Input Voltage and Maximum Power Point Control Simplifies Energy Harvesting

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC4071EDDB#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC4071EDDB#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC4071EMS8E#PBF 8-Lead MSOP w/ EP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC4071EMS8E#TRPBF 8-Lead MSOP w/ EP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC4071IDDB#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC4071IDDB#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC4071IMS8E#PBF 8-Lead MSOP w/ EP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC4071IMS8E#TRPBF 8-Lead MSOP w/ EP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Feb 3, 2020

- 20_0128

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC4071EMS8E#PBF

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LTC4071EMS8E#TRPBF

PRODUCTION

LTC4071IMS8E#PBF

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Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC4071EMS8E#PBF

PRODUCTION

LTC4071EMS8E#TRPBF

PRODUCTION

LTC4071IMS8E#PBF

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LTC4071IMS8E#TRPBF

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PCN20_0128_Form

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Software & Part Ecosystem

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PRODUCTION

Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds

Evaluation Kits 1

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DC1702A

LTC4071EDDB Demo Board | Shunt Li-Ion Charger, 10V ≤ VIN ≤ 16V, 4.1VOUT @ 50mA

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DC1702A

LTC4071EDDB Demo Board | Shunt Li-Ion Charger, 10V ≤ VIN ≤ 16V, 4.1VOUT @ 50mA

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DC1702A
LTC4071EDDB Demo Board | Shunt Li-Ion Charger, 10V ≤ VIN ≤ 16V, 4.1VOUT @ 50mA
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Product Detail

Demonstration Circuit DC1702A is a Li-Ion/Polymer Shunt Battery Charger system with Low Battery Disconnect featuring the LTC4071EDDB. The LTC4071 allows simple charging of Li-Ion/Polymer batteries from very low current, intermittent or continuous charging sources. The DC1702 provides up to 50mA of output current at 4.1V from a 10V to 16V input supply.


A near-zero current low battery latching disconnect function protects even the lowest capacity batteries from deep discharge and potentially irreparable damage. The 550nA to 50mA operating current makes charging possible from previously unusable sources. With its low operating current the LTC4071 is well suited to charge low capacity Li-Ion or thin film batteries in energy harvesting applications.

Resources

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DC1702A - Schematic Download

68.00K

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DC1702A - Design Files Download

862.00K

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DC1702A - Demo Manual Download

332.00K

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Evaluation Kits1

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DC1702A

LTC4071EDDB Demo Board | Shunt Li-Ion Charger, 10V ≤ VIN ≤ 16V, 4.1VOUT @ 50mA

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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LTC4071 - Power Management Download

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