LTC4015EUHF#TRPBF

LTC4015 Multichemistry Buck Battery Charger Controller with Digital Telemetry System FEATURES n n n n n n n n n n n n DESCRIPTION Multichemistry Li-Ion/Polymer, LiFePO4, or LeadAcid 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 C...
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LTC4015 Multichemistry Buck Battery Charger Controller with Digital Telemetry System FEATURES n n n n n n n n n n n n DESCRIPTION Multichemistry Li-Ion/Polymer, LiFePO4, or LeadAcid 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 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. APPLICATIONS n n n Available in a 38-Lead 5mm × 7mm QFN package. Portable Medical Instruments/Military Equipment Industrial Handhelds/Lighting Ruggedized Notebook/Tablet Computers L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION 12VIN 2-Cell Li-Ion 8A Step-Down Battery Charger Controller RSNSI VIN 12V SYS Step-Down Charger Efficiency and Coulomb Counter Error vs Battery Charge Current 100 CLP CLN SYS SYSM5 OUTFET SMBALERT DRVCC DVCC BOOST SCL TG SDA CELLS0 INTVCC EFFICIENCY (%) µCONTROLLER 90 INTVCC UVCLFB LTC4015 SW CELLS1 BG CSP VC 70 –1.0 65 EFFICIENCY QC ERROR –1.5 1 CHARGE CURRENT (A) –2.0 10 4015 TA01b BATSENS NTCBIAS CCREFM (PADDLE) EQ GND SGND RSNSB CSN CCREFP –0.5 75 50 0.1 CSPM5 RT LEAD-ACID EQUALIZE CHARGE 80 55 CHEM0 CHEM1 0.0 85 60 CELLS2 0.5 95 COULOMB COUNTER ERROR (%) VIN INFET RNTCBIAS MPPT 2P5VCC NTC T 2-CELL Li-Ion BATTERY PACK RNTC 4015 TA01a 4015fb For more information www.linear.com/LTC4015 1 PDF
Документация на серию LTC4015 

LTC4015 - Multichemistry Buck Battery Charger Controller with Digital Telemetry System

Дата модификации: 20.04.2022

Размер: 1.5 Мб

76 стр.

    Публикации 1

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    24 января 2022
    статья

    Интерфейсы I2C, SMBus и PMBus

    Мари Грейс Легаспи, Эрик Пенья (Analog Devices) I2C (Inter–Integrated Circuit) – широко используемый последовательный протокол связи между микросхемами. Специалисты компании Analog Devices рассматривают его основные функции и описывают... ...читать

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