LTC4015 - Multichemistry Buck Battery Charger Controller with Digital Telemetry System

The LTC®4015 is a complete synchronous buck controller/ charger with pin selectable, chemistry specific charging and termination algorithms.

The LTC4015 can charge Li-Ion/Polymer, LiFePO4, or leadacid 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 LTC4015 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.

Features
  • 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
Typical Application

Applications
  • Portable Medical Instruments/Military Equipment
  • Industrial Handhelds/Lighting
  • Ruggedized Notebook/Tablet Computers
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC4015EUHF#PBF5x7 QFN-38E$8.50$5.95
LTC4015EUHF#TRPBF5x7 QFN-38E$6.01
LTC4015IUHF#PBF5x7 QFN-38I$9.71$6.80
LTC4015IUHF#TRPBF5x7 QFN-38I$6.86
Demo Boards
Part NumberDescriptionPrice
DC2039ALTC4015EUHF Demo Board | Multichemistry Buck Battery Charger with Digital Telemetry System$200.00
Datasheet
Spec Notice
Press Release
Software and Simulation
Ad
Related Product
LTC4015 - Multichemistry Buck Battery Charger Controller with Digital Telemetry System
Product Errata - LTC4015
R582 - Reliability Data
High Voltage Battery Charging and Management Solutions
通用的 35VIN/35VOUT 同步降压型电池充电器控制器 可提供高达 20A 充电电流、支持多种电池化学组成 并提供数字遥测功能
LTC4015 Software
LTC4015 Footprints and Symbols
35V Buck Battery Charger with Digital Telemetry