LTC4162-F Series

35V/3.2A Multi-Cell Lithium-Ion Step-Down Battery Charger with PowerPath and I2C Telemetry

Catalog

35V/3.2A Multi-Cell Lithium-Ion Step-Down Battery Charger with PowerPath and I2C Telemetry

Part	Function	Mounting Type	Interface	Number of Cells [Min]	Number of Cells [Max]	Package / Case	Battery Chemistry	Supplier Device Package	Fault Protection	Operating Temperature [Min]	Operating Temperature [Max]
Analog Devices LTC4162IUFD-SAD#TRPBF	Battery Monitor	Surface Mount	I2C	3	12	28-WFQFN Exposed Pad	Lead Acid	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162EUFD-FST#TRPBF	Battery Monitor	Surface Mount	I2C	1	9	28-WFQFN Exposed Pad	LiFePO4/Li-ion	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162EUFD-LAD#TRPBF	Battery Monitor	Surface Mount	I2C	1	8	28-WFQFN Exposed Pad	Lithium Ion/Polymer	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162EUFD-FAD#PBF	Battery Monitor	Surface Mount	I2C	1	9	28-WFQFN Exposed Pad	LiFePO4/Li-ion	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162IUFD-L40M#PBF	Battery Monitor	Surface Mount	I2C	1	8	28-WFQFN Exposed Pad	Lithium Ion/Polymer	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162EUFD-L40M#TRPBF	Battery Monitor	Surface Mount	I2C	1	8	28-WFQFN Exposed Pad	Lithium Ion/Polymer	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162EUFD-L40#PBF	Battery Monitor	Surface Mount	I2C	1	8	28-WFQFN Exposed Pad	Lithium Ion/Polymer	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162IUFD-LAD#TRPBF	Battery Monitor	Surface Mount	I2C	1	8	28-WFQFN Exposed Pad	Lithium Ion/Polymer	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162IUFD-SSTM#PBF	Battery Monitor	Surface Mount	I2C	3	12	28-WFQFN Exposed Pad	Lead Acid	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C
Analog Devices LTC4162EUFD-LADM#PBF	Battery Monitor	Surface Mount	I2C	1	8	28-WFQFN Exposed Pad	Lithium Ion/Polymer	28-QFN (4x5)	Over Current Over Temperature Over Voltage	-40 °C	125 ¯C

Catalog

35V/3.2A Multi-Cell Lithium-Ion Step-Down Battery Charger with PowerPath and I2C Telemetry

Key Features

• Lead-Acid Battery Charger with Absorb and Equalize

• Wide Charging Input Voltage Range: 4.5V to 35V

• High Efficiency Synchronous Operation

• 16-Bit Digital Telemetry System Monitors VBAT,

• IBAT, RBAT, TBAT, TDIE, VIN, IIN, VOUT

• Charges 6V, 12V, 18V and 24V Lead-Acid Batteries

• Input Undervoltage Charge Current Limit Loop

• Input MPPT for Solar Panel Inputs

• Input Current Limit Prioritizes System Load Output

• Low Loss PowerPath™

• Instant-On Operation with Discharged or Missing Battery

• Temperature Controlled Charging

• Pin Compatible with Li-Ion and LiFePO4Versions

Description

The LTC4162-F 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, solar panels, etc., and a rechargeable lithium iron phosphate battery.A high resolution measurement system provides extensive 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 numerous system status alerts.The LTC4162-F can charge LiFePO4 cell stacks from 1 cell to 9 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-F is available in a thermally enhanced 28-pin 4mm × 5mm × 0.75mm QFN surface mount package.ApplicationsMedical InstrumentsUSB-C Power DeliveryIndustrial HandheldsRuggedized NotebooksTablet Computers