LTC4009

PRODUCTION

High Efficiency, Multi-Chemistry Battery Charger

Data Sheet Product Selection Table

Part Models: 12
1ku List Price: Starting From $3.54

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Part Details

General Purpose Battery Charger Controller
Efficient 550kHz Synchronous Buck PWM Topology
±0.5% Output Float Voltage Accuracy
Programmable Charge Current: 4% Accuracy
Programmable AC Adapter Current Limit: 3% Accuracy
No Audible Noise with Ceramic Capacitors
Wide Input Voltage Range: 6V to 28V
Wide Output Voltage Range: 2V to 28V
Indicator Outputs for AC Adapter Present, Charging, C/10 Current Detection and Input Current Limiting
Analog Charge Current Monitor
Micropower Shutdown
Thermally Enhanced 20-Pin 4mm × 4mm × 0.75mm QFN Package

Part Models: 12
1ku List Price: Starting From $3.54

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4009CUF#PBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009CUF#TRPBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009CUF-1#PBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009CUF-1#TRPBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009CUF-2#PBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009CUF-2#TRPBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009IUF#PBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009IUF#TRPBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009IUF-1#PBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009IUF-1#TRPBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009IUF-2#PBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4009IUF-2#TRPBF	20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jan 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products
		PCN21_0269_Form Material_Report Detailed Change Description Qualification Results Summary
LTC4009CUF#PBF	PRODUCTION
LTC4009CUF#TRPBF	PRODUCTION
LTC4009CUF-1#PBF	PRODUCTION
LTC4009CUF-1#TRPBF	PRODUCTION
LTC4009CUF-2#PBF	PRODUCTION
LTC4009CUF-2#TRPBF	PRODUCTION
LTC4009IUF#PBF	PRODUCTION
LTC4009IUF#TRPBF	PRODUCTION
LTC4009IUF-1#PBF	PRODUCTION
LTC4009IUF-1#TRPBF	PRODUCTION
LTC4009IUF-2#PBF	PRODUCTION
LTC4009IUF-2#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
µModule Battery Chargers 1
LTM8061	RECOMMENDED FOR NEW DESIGNS	32V, 2A μModule (Power Module) Li-Ion/Polymer Battery Charger
Battery Fuel Gauge and Coulomb Counter 1
LTC2943	PRODUCTION	Multicell Battery Gas Gauge with Temperature, Voltage and Current Measurement
PowerPath, Ideal Diodes, and Load Switches 1
LTC4417	RECOMMENDED FOR NEW DESIGNS	Prioritized PowerPath^™ Controller
Pushbutton Controllers 1
LTC2955	RECOMMENDED FOR NEW DESIGNS	Pushbutton On/Off Controller with Automatic Turn-On

Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4365	RECOMMENDED FOR NEW DESIGNS	Overvoltage, Undervoltage and Reverse Supply Protection Controller

Tools & Simulations

LTspice 1

LTC4009 - Battery Charger IC

Models for the following parts are available in LTspice:

LTC4009
LTC4009-1
LTC4009-2

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTC4009-2 Multicell Li-Ion Battery Charger Board

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Product Details

Demonstration circuit 1104B is a single-battery standalone charge controller with built-in charge termination featuring the LTC4009-2. The input voltage is 13.5V to 20V. The charger output voltage is programmed by jumpers to support 1-, 2-, 3- and 4-cell Li-Ion batteries with a cell voltage of 4.2V/cell. The maximum charge current is 2A. The demo board is initially configured for 12.6V Li-Ion batteries. The board will automatically charge a battery as soon as input power is applied with a battery connected prior to power up. Status LEDs are provided for CHG, ACP, C/10, and ICL although this charger is not a smart battery charger, a popular smart battery connector is provided that can be used for data-logging with the optional DC410 demo board and software. To be clear, you do not need a smart battery to use this board. The optional DC410 SMBus-to-Serial port adapter and associated software is to monitor a smart battery for demonstration purposes only. Contact your Analog Devices representative for ordering a DC410. This demo board is capable of supporting the LTC4009 and LTC4009-1 with a simple IC swap out. See schematic.

Resources

DC1104B - Schematics
41.00K

DC1104B - Design Files
1.00M

DC1104B - Demo Board Manual
481.00K

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LTC4009

Part Details

Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Application Note 1

Technical Articles 1

Product Selector Card 1

Solutions Bulletin & Brochure 1