LTC4070

PRODUCTION

Li-Ion/Polymer Shunt Battery Charger System

Data Sheet (Rev. D) Product Selection Table
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Part Details

  • Low Operating Current (450nA)
  • 1% Float Voltage Accuracy Over Full Temperature and Shunt Current Range
  • 50mA Maximum Internal Shunt Current (500mA with External PFET)
  • 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
  • Low and High Battery Status Outputs
  • Simple Low Voltage Load Disconnect Application
  • Thermally Enhanced, Low Profile (0.75mm) 8-Lead (2mm × 3mm) DFN and MSOP Packages
LTC4070
Li-Ion/Polymer Shunt Battery Charger System
Simple Shunt Charger with Load Disconnect and NTC Conditioning NTC Overtemperature Battery Float Voltage Qualifying Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Application Note 1

Technical Articles 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Energy Harvesting 1
LTC3108
RECOMMENDED FOR NEW DESIGNS Ultralow Voltage Step-Up Converter and Power Manager
Single-Supply Monitors 1
LTC2935
PRODUCTION Ultra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds
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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC4070
LTspice

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.

Evaluation Kits

eval board
schematic 1
DC1584A

LTC4070EDDB Demo Board | Simple Low-IQ Battery Charger/Protector with NTC Thermistor Input

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Product Details

DC1584A: Demo Board for the LTC4070 Li-Ion/Polymer Shunt Battery Charger System.
DC1584A
LTC4070EDDB Demo Board | Simple Low-IQ Battery Charger/Protector with NTC Thermistor Input
DC1584A - Schematic

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