LTC4000IGN Datasheet PDF - Linear Technology

●Description

●The LTC®4000 is a high voltage, high performance controller that converts many externally compensated DC/DC power supplies into full-featured battery chargers.

●Features of the LTC4000’s battery charger include: accurate (±0.25%) programmable float voltage, selectable timer or current termination, temperature qualified charging using an NTC thermistor, automatic recharge, C/10 trickle charge for deeply discharged cells, bad battery detection and status indicator outputs. The battery charger also includes precision current sensing that allows lower sense voltages for high current applications.

●Features

●Complete High Performance Battery Charger When Paired with a DC/DC Converter

●Wide Input and Output Voltage Range: 3V to 60V

●Input Ideal Diode for Low Loss Reverse Blocking and Load Sharing

●Output Ideal Diode for Low Loss PowerPath™ and Load Sharing with the Battery

●Instant-On Operation with Heavily Discharged Battery

●Programmable Input and Charge Current: ±1% Accuracy

●±0.25% Accurate Programmable Float Voltage

●Programmable C/X or Timer Based Charge Termination

●NTC Input for Temperature Qualified Charging

●28-Lead 4mm × 5mm QFN or SSOP Packages

●applications

●High Power Battery Charger Systems

●High Performance Portable Instruments

●Industrial Battery Equipped Devices

●Notebook/Subnotebook Computers