LTC1729

PRODUCTION

Li-Ion Battery Charger Termination Controllers

Part Models: 14
1ku List Price: Starting From $3.20

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Overview

Built-In Termination: 3-Hour Time-Out
C/10 Detection with Status Indicator
Trickle Charge Preconditioning If Cell <2.7V
Charging Enabled When 0°C < T < 50°C
Automatic Charger Present Detection
Automatic Battery Present Detection
1- or 2-Cell, 4.1V/Cell or 4.2V/Cell Options
Precision Internal 0.2% Voltage Feedback Divider
Compatible with LT1505/LT1510/LT1511/LT1512/LT1513/LT1769
Small Footprint/Low Profile

The LTC1729 series is a family of smart termination controllers for lithium-ion battery chargers. These ICs provide trickle charge preconditioning, temperature charge qualification, time or charge current termination, automatic charger and battery detection and status output.

Combining the LTC1729 series part with the LT1510 (1.5A), LT1769 (2A), LT1511 (3A) and LT1505 (>4A) step-down chargers is a simple operation. Connecting six pins from the LTC1729 series part to the step-down chargers completes the integration. The LTC1729 termination controllers are also compatible with step-down/step-up (SEPIC) chargers, including the LT1512 (2A switch) and LT1513 (3A switch).

The LTC1729 series is available in the 8-pin MSOP and SO packages.

Applications

Cellular Phones
Cradle Chargers
Camcorders

Part Models: 14
1ku List Price: Starting From $3.20

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
LTC1729CMS8-4.1#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CMS8-4.1#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CMS8-4.2#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CMS8-4.2#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CMS8-8.2#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CMS8-8.2#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CMS8-8.4#PBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CMS8-8.4#TRPBF	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CS8-4.1#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CS8-4.1#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CS8-8.2#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CS8-8.2#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CS8-8.4#PBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC1729CS8-8.4#TRPBF	8-Lead SOIC (Narrow 0.15 Inch)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3)
		PCN24_0004_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1729CMS8-4.1#PBF	PRODUCTION
LTC1729CMS8-4.1#TRPBF	PRODUCTION
LTC1729CMS8-4.2#PBF	PRODUCTION
LTC1729CMS8-4.2#TRPBF	PRODUCTION
LTC1729CMS8-8.2#PBF	PRODUCTION
LTC1729CMS8-8.2#TRPBF	PRODUCTION
LTC1729CMS8-8.4#PBF	PRODUCTION
LTC1729CMS8-8.4#TRPBF	PRODUCTION
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0128_Form Material_Report
LTC1729CMS8-4.1#PBF	PRODUCTION
LTC1729CMS8-4.1#TRPBF	PRODUCTION
LTC1729CMS8-4.2#PBF	PRODUCTION
LTC1729CMS8-4.2#TRPBF	PRODUCTION
LTC1729CMS8-8.2#PBF	PRODUCTION
LTC1729CMS8-8.2#TRPBF	PRODUCTION
LTC1729CMS8-8.4#PBF	PRODUCTION
LTC1729CMS8-8.4#TRPBF	PRODUCTION
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)
		PCN22_0255_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC1729CS8-4.1#PBF	PRODUCTION
LTC1729CS8-4.1#TRPBF	PRODUCTION
LTC1729CS8-8.2#PBF	PRODUCTION
LTC1729CS8-8.2#TRPBF	PRODUCTION
LTC1729CS8-8.4#PBF	PRODUCTION
LTC1729CS8-8.4#TRPBF	PRODUCTION
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM
		PCN21_0026_Form Material_Report Delta Qualification Matrix
LTC1729CS8-4.1#PBF	PRODUCTION
LTC1729CS8-4.1#TRPBF	PRODUCTION
LTC1729CS8-8.2#PBF	PRODUCTION
LTC1729CS8-8.2#TRPBF	PRODUCTION
LTC1729CS8-8.4#PBF	PRODUCTION
LTC1729CS8-8.4#TRPBF	PRODUCTION

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

Software Resources

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Evaluation Kits

LTC1729CMS8-8.4, LT1510-5CGN | Termination Controllers / Li-Ion Battery Charger, 11.5V to 28V Input, 8.4VOUT @ 1A Max. (marking LTJG)

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Product Details

DC294A-D: Demo Board for the LT1510 Constant-Voltage/Constant-Current Battery Charger, LTC1729 Li-Ion Battery Charger Termination Controllers.

Resources

DC294A - Schematic
9/24/2009

DC294A - Demo Manual
9/24/2009

DC294A - Design File
9/24/2009

LT1769CGN, LTC1729CMS8 | 2A Li-Ion Battery Charger with Termination Controller, 12V to 25V Input, 8.4 VOUT @ 2A Max.

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Product Details

DC299A-D Demo Board for:
LT1769 Constant-Current/Constant-Voltage 2A Battery Charger with Input Current Limiting
LTC1729 Li-Ion Battery Charger Termination Controllers