LTC4015IUHF#TRPBF

LTC4015 is a multichemistry buck battery charger controller with digital telemetry system. This device 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. It also includes automatic recharge, precharge (Li-Ion) and NTC thermistor protection. This device'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. It is used in application such as portable medical instruments/military equipment, industrial handhelds/lighting, ruggedized notebook/tablet computers etc.

• Coulomb counter and integrated 14-bit ADC
• Wide charging input voltage range is 4.5V to 35V
• Wide battery voltage range upto 35V
• Input undervoltage charge current limit loop
• Maximum power point tracking
• Instant-on operation with discharged battery
• Input current limit prioritizes system load output
• Input and output ideal diodes provide low loss powerpath™ operation
• Operating temperature is -40°C to 125°C
• Packaging style is 38-lead plastic QFN

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