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LTC4012 Datasheet(PDF) 1 Page - Analog Devices |
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LTC4012 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 52 page  LTC4162-L 1 Rev A For more information www.analog.com Document Feedback TYPICAL APPLICATION FEATURES DESCRIPTION 35V/3.2A Multicell Lithium-Ion Step-Down Battery Charger with PowerPath and I2C Telemetry The LTC®4162-L is an advanced monolithic synchronous step-down switching battery charger and PowerPath™ manager that seamlessly manages power distribution between input sources such as wall adapters, backplanes, solarpanels,etc.,andarechargeableLithium-Ion/Polymer battery. A high resolution measurement system provides exten- sive telemetry information for circuit voltages, currents, battery resistance and temperature which can all be read back over the I2C port. The I2C port can also be used to configure many charging parameters including charging voltages and currents, termination algorithms and numer- ous system status alerts. The LTC4162-L can charge Lithium-Ion cell stacks from 1 cell to 8 cells with as much as 3.2A of charge current. The power path topology decouples the output voltage from the battery allowing a portable product to start up instantly under very low battery voltage conditions. The LTC4162-L is available in a thermally enhanced 28-pin 4mm × 5mm × 0.75mm QFN surface mount package. 1-8 Cell, 3.2A Step-Down Switching Battery Charger with PowerPath Charging Efficiency vs Input Voltage by Cell Count n Li-Ion/Polymer Battery Charger with Termination n Wide Charging Input Voltage Range: 4.5V to 35V n High Efficiency Synchronous Operation n 16-Bit Digital Telemetry System Monitors VBAT, IBAT, RBAT, TBAT, TDIE, VIN, IIN, VOUT n Charges 1-8 Lithium-Ion/Polymer Cells n Input Undervoltage Charge Current Limit Loop n Input MPPT for Solar Panel Inputs n Input Current Limit Prioritizes System Load Output n Low Loss PowerPath™ n Instant-On Operation with Discharged or Missing Battery n JEITA Temperature Controlled Charging n Pin Compatible with LiFePO4 and SLA Versions APPLICATIONS n Medical Instruments n USB-C Power Delivery n Industrial Handhelds n Ruggedized Notebooks n Tablet Computers All registered trademarks and trademarks are the property of their respective owners. 4162L TA01a INFET CLP VOUT CELL COUNT VIN VIN VOUT CLN I2C SW CSP BATFET CSN BATSENS+ NTCBIAS NTC GND LTC4162-L T 5 10 15 20 25 30 35 INPUT VOLTAGE (V) 75 80 85 90 95 100 1 CELL 2 CELLS 3 CELLS 4 CELLS 8 CELLS CHARGE I = 2.5A 4162L TA01b 5 CELLS 6 CELLS 7 CELLS |
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