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LTC4015I

Multichemistry Buck Battery Charger Controller with Digital Telemetry System

Manufacturer : Analog Devices, Inc
Package/Case : QFN-38
Product Categories : Battery Charger IC ; Switching Battery Chargers
Datasheet: LTC4015I Datasheet (PDF)
RoHs Status: Lead free / RoHS Compliant
In-stock: 75

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LTC4015I Product Details

The LTC4015I is a complete synchronous buck controller/charger with pin-selectable, chemistry specific charging and termination algorithms.

The LTC4015I can charge Li-Ion/Polymer, LiFePO4, or lead-acid batteries. Battery charge voltage is pin selectable and I2C adjustable. Input current limit and charge current can be accurately programmed with sense resistors and can be individually adjusted via the I2C serial port. A digital telemetry system monitors all system power parameters.

Safety timer and current termination algorithms are supported for lithium chemistry batteries. The LTC4015I also includes automatic recharge, precharge (Li-Ion) and NTC thermistor protection. The LTC4015's I2C port allows user customization of charger algorithms, reading of charger status information, configuration of the maskable and programmable alerts, plus use and configuration of the Coulomb counter.

Available in a 38-Lead 5mm × 7mm QFN package.

LTC4015I

Feature

  • Multichemistry Li-Ion/Polymer, LiFePO4, or Lead-Acid Battery Charger with Termination
  • High Efficiency Synchronous Buck Battery Charger
  • Digital Telemetry System Monitors VBAT, IBAT, RBAT, NTC Ratio (Battery Temperature), VIN, IIN, VSYSTEM, Die Temperature
  • Coulomb Counter and Integrated 14-Bit ADC
  • Wide Charging Input Voltage Range: 4.5V to 35V
  • Wide Battery Voltage Range: Up to 35V
  • Input Undervoltage Charge Current Limit Loop
  • Maximum Power Point Tracking
  • Optional I2C Serial Port Control
  • Input Current Limit Prioritizes System Load Output
  • Input and Output Ideal Diodes Provide Low Loss PowerPath™ Operation
  • Instant-On Operation with Discharged Battery

Applications

  • Portable Medical Instruments/Military Equipment
  • Industrial Handhelds/Lighting
  • Ruggedized Notebook/Tablet Computers
  • Solar Battery Chargers

Technical Parameters

  • Vinmin | V
  • 4.5
  • Vinmax | V
  • 35
  • Max Charge Currenttyp | A
  • 20
  • Battery Chemistry
  • Lead Acid, LiFePO4, Li-Ion, Li-Polymer
  • Number of Cells
  • Up to 35V Battery Voltage
  • Float VoltageV
  • Up to 35V
  • Charge Termination
  • C/x, Timer
  • Monolithic
  • No

LTC4015I Datasheet

  • LTC4015 Technical Documentation/Data sheet
    Download

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Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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