LTM8061

32V, 2A μModule (Power Module) Li-Ion/Polymer Battery Charger

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Recommended for New Designs

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Overview

Features and Benefits
Product Details

Features and Benefits

Wide Input Voltage Range: 4.95V to 32V (40V Absolute Maximum)
Float Voltage Options:
- 1-Cell: 4.1V, 4.2V
- 2-Cell: 8.2V, 8.4V
Programmable Charge Current: Up to 2A
User-Selectable Charge Termination: C/10 or Onboard Termination Timer
Dynamic Charge Rate Programming/Soft-Start Pin
Programmable Input Current Limit
Optional Reverse Input Protection
NTC Resistor Temperature Monitor
0.5% Float Voltage Accuracy
Bad-Battery Detection with Auto-Reset
Tiny, Low Profile (9mm × 15mm × 4.32mm) Surface Mount LGA Package

Product Details

The LTM8061 is a high efficiency 32V, 2A μModule^® (power module) standalone Li-Ion battery charger. It is optimized for one and two-cell packs, with fixed float voltage options: 4.1V, 4.2V, 8.2V and 8.4V. The LTM8061 provides a constant-current/constant-voltage charge characteristic, with maximum charge current up to 2A. A precondition feature trickle charges a depleted battery, and bad battery detection provides a signal and suspends charging if a battery does not respond to preconditioning.

The LTM8061 can be configured to terminate charging when charge current falls to one-tenth the programmed maximum current or to use an internal timer if a timebased termination scheme is desired. Once charging is terminated, the LTM8061 enters a low current standby mode. An auto-restart feature starts a new charge cycle if the battery voltage drops 2.5% from the float voltage, or if a new battery is inserted into a charging system.

The LTM8061 is packaged in a thermally enhanced, compact (9mm × 15mm × 4.32mm) over-molded land grid array (LGA) package suitable for automated assembly by standard surface mount equipment. The LTM8061 is RoHS compliant.

Applications

Industrial Handheld Instruments
12V to 24V Automotive and Heavy Equipment
Professional Video/Camera Chargers

Product Categories

Power Management
- µModule Battery Chargers

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Product Lifecycle Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (4)

DC1645A-D

LTM8061-8.4 Demo Board | 12V ≤ V_IN ≤ 32V, 2A µModule Buck Li-Ion Battery Charger, V_OUT = 8.4V @ 2A

DC1645A-B

LTM8061-4.2 Demo Board | 6.5V ≤ V_IN ≤ 32V, 2A µModule Buck Li-Ion Battery Charger, V_OUT = 4.2V @ 2A

DC1645A-A

LTM8061-4.1 Demo Board | 6.5V ≤ V_IN ≤ 32V, 2A µModule Buck Li-Ion Battery Charger, V_OUT = 4.1V @ 2A

DC1645A-C

LTM8061-8.2 Demo Board | 12V ≤ V_IN ≤ 32V, 2A µModule Buck Li-Ion Battery Charger, V_OUT = 8.2V @ 2A

DC1645A-D

View Detailed Evaluation Kit Information

Demonstration circuits 1645A-A, 1645A-B, 1645A-C and 1645A-D feature the LTM8061, a 32V, 2A μModule^®Li-Ion battery charger. Operating from a 6.5V to 32V input source, the 1645A-A and 1645A-B demo circuits charge single cell Li-Ion batteries to float voltages of 4.1V or 4.2V respectively. The 1645A-C and 1645A-D demo circuits operate from a 12V to 32V input source, and charge dual cell Li-Ion battery packs to float voltages of 8.2V or 8.4V. JP1 turns the converter on or off. JP2 allows for easy selection of C/10 or timer charge termination.

Resources

DC1645A-B

View Detailed Evaluation Kit Information

Demonstration circuits 1645A-A, 1645A-B, 1645A-C and 1645A-D feature the LTM8061, a 32V, 2A μModule^® Li-Ion battery charger. Operating from a 6.5V to 32V input source, the 1645A-A and 1645A-B demo circuits charge single cell Li-Ion batteries to float voltages of 4.1V or 4.2V respectively. The 1645A-C and 1645A-D demo circuits operate from a 12V to 32V input source, and charge dual cell Li-Ion battery packs to float voltages of 8.2V or 8.4V. JP1 turns the converter on or off. JP2 allows for easy selection of C/10 or timer charge termination.

Resources

DC1645A-A

View Detailed Evaluation Kit Information

Demonstration circuits 1645A-A, 1645A-B, 1645A-C and 1645A-D feature the LTM8061, a 32V, 2A μModule^® Li-Ion battery charger. Operating from a 6.5V to 32V input source, the 1645A-A and 1645A-B demo circuits charge single cell Li-Ion batteries to float voltages of 4.1V or 4.2V respectively. The 1645A-C and 1645A-D demo circuits operate from a 12V to 32V input source, and charge dual cell Li-Ion battery packs to float voltages of 8.2V or 8.4V. JP1 turns the converter on or off. JP2 allows for easy selection of C/10 or timer charge termination.

Resources

DC1645A-C

View Detailed Evaluation Kit Information

Demonstration circuits 1645A-A, 1645A-B, 1645A-C and 1645A-D feature the LTM8061, a 32V, 2A μModule^® Li-Ion battery charger. Operating from a 6.5V to 32V input source, the 1645A-A and 1645A-B demo circuits charge single cell Li-Ion batteries to float voltages of 4.1V or 4.2V respectively. The 1645A-C and 1645A-D demo circuits operate from a 12V to 32V input source, and charge dual cell Li-Ion battery packs to float voltages of 8.2V or 8.4V. JP1 turns the converter on or off. JP2 allows for easy selection of C/10 or timer charge termination.

Resources

Documentation & Resources

Data Sheets

LTM8061: 32V, 2A μModule (Power Module) Li-Ion/ Polymer Battery Charger Data Sheet
2/27/2014

PDF

383K

Reliability Data

R598 Reliability Data
3/26/2018

PDF

41 K

User Guides

DC1645A - Demo Manual
12/14/2010

PDF

265K

Product Selector Card

μModule Power Products
4/4/2017

PDF

10M

Informational

μModule Design and Manufacturing Resources
1/30/2018

Press Releases

µModule Battery Chargers with Active Current Limit Deliver 2A from up to 32V_IN
9/21/2021

Tools & Simulations

LTspice

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice downloads and documentation

LTspice Simulations

LTM8061 Demo Circuit - 2A LiFePO4 µModule Battery Charger (6.5-32V to 4.1V @ 2A)

Models for the following parts are available in LTspice:

LTM8061-4.1

LTM8061-4.2

LTM8061-8.2

LTM8061-8.4

Product Recommendations

LTM8061 Companion Parts

Recommended Related Parts

LTC2960, LTC4359, LT4363, LTC2974, LTC4417.

Design Resources

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 Number	Material Declaration	Reliability Data	Pin/Package Drawing	CAD Symbols, Footprints & 3D Models
LTM8061EV-4.1#PBF	Material Declaration	Reliability Data	77-Lead LGA (15mm x 9mm x 4.32mm)	Ultra Librarian SamacSys
LTM8061EV-4.2#PBF	Material Declaration	Reliability Data	77-Lead LGA (15mm x 9mm x 4.32mm)	Ultra Librarian SamacSys
LTM8061EV-8.2#PBF	Material Declaration	Reliability Data	77-Lead LGA (15mm x 9mm x 4.32mm)	Ultra Librarian SamacSys
LTM8061EV-8.4#PBF	Material Declaration	Reliability Data	77-Lead LGA (15mm x 9mm x 4.32mm)	Ultra Librarian SamacSys
LTM8061IV-4.1#PBF	Material Declaration	Reliability Data	77-Lead LGA (15mm x 9mm x 4.32mm)	Ultra Librarian SamacSys
LTM8061IV-4.2#PBF	Material Declaration	Reliability Data	77-Lead LGA (15mm x 9mm x 4.32mm)	Ultra Librarian SamacSys
LTM8061IV-8.2#PBF	Material Declaration	Reliability Data	77-Lead LGA (15mm x 9mm x 4.32mm)	Ultra Librarian SamacSys
LTM8061IV-8.4#PBF	Material Declaration	Reliability Data	77-Lead LGA (15mm x 9mm x 4.32mm)	Ultra Librarian SamacSys
Wafer Fabrication Data		R598 Reliability Data

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.