MAX1772

PRODUCTION

MAX1772

Low-Cost, Multichemistry Battery-Charger Building Block

0.7% Accurate, Input-Current-Limited, Multichemistry Battery Charger Offers Most Complete Solution

PRODUCTION

Part Details

Not the part you were looking for?

Go to Product Selection Table

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $7.40

Features

Input Current Limiting
±0.5% Output Voltage Accuracy Using Internal Reference (0°C to +85°C)
Programmable Battery Charge Current >4A
Analog Inputs Control Charge Current and Charge Voltage
Monitor Outputs for:
- Current Drawn from AC Input Source
- Charging Current
- AC Adapter Present
Up to 18.2V (max) Battery Voltage
8V to 28V Input Voltage
>95% Efficiency
99.99% (max) Duty Cycle for Low-Dropout Operation
Charges Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc.

Additional Details

The MAX1772 is a highly-integrated, multichemistry battery-charger control IC that simplifies the construction of accurate and efficient chargers. The MAX1772 uses analog inputs to control charge current and voltage and can be programmed by the host or hardwired. High efficiency is achieved by a buck topology with synchronous rectification.

Maximum current drawn from the AC adapter is programmable to avoid overloading the AC adapter when supplying the load and the battery charger simultaneously. This enables the user to reduce the cost of the AC adapter. The MAX1772 provides outputs that can be used to monitor the current drawn from the AC adapter, battery-charging current, and the presence of an AC adapter.

The MAX1772 can charge two to four lithium-ion (Li+) series cells, easily providing 4A. When charging, the MAX1772 automatically transitions from regulating current to regulating voltage. It is available in a space-saving 28-pin QSOP package.

Applications

Handheld Terminals
Notebook and Subnotebook Computers
PDAs and Other Handheld Devices

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $7.40

Documentation

Technical Documents 2

MAX1772: Low-Cost, Multichemistry Battery-Charger Building Block Data Sheet (Rev.4) 03/16/2009

MAX1772 Reliability Data 01/12/2023

Design Resources 2

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
MAX1772EEI+	28-QSOP-150_MIL	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX1772EEI+T	28-QSOP-150_MIL	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX1772EEI+
Pin/Package Drawing
28-QSOP-150_MIL
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX1772EEI+T
Pin/Package Drawing
28-QSOP-150_MIL
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

Software & Part Ecosystem

Companion Parts 1

Parts	Product Life Cycle	Description
Product1
MAX1645A		Advanced-Chemistry-Independent, Level-2 Battery Chargers with Input Current Limiting

Evaluation Kit

MAX1772EVKIT

Evaluation Kit for the MAX1772

MAX1772EVKIT

Evaluation Kit for the MAX1772

Features and Benefits

Input Current Limiting
±0.7% Output Voltage Accuracy
Analog Inputs Control Charge Current and Charge Voltage
Monitor Outputs for:
- Current Drawn from AC Input Source
- Charging Current
- AC Adapter Presence
Up to 18.2V Battery Voltage
+8V to +28V Input Voltage
4A (max) Battery Charge Current
Charges Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc.
Fully Assembled and Tested
Surface-Mount Components

Buy Now View Details

Product Detail

The MAX1772 evaluation kit (EV kit) is an accurate and efficient multichemistry battery charger. It uses analog inputs to control charge voltage and current. The EV kit can charge any battery with charge current up to 4A. High efficiency is achieved by a buck topology with synchronous rectification. The EV kit provides outputs that can be used to monitor the input current, battery charging current, and the presence of an AC adapter.

The MAX1772 EV kit is a fully assembled and tested surface-mount printed circuit (PC) board.

Applications

Battery Chargers
Cell Phones
Cordless Phones
Digital Still Cameras
Notebook Computers
Palmtop Computers
Pen Entry Palmtops
Smart Battery Packs/Chargers

MAX1772EVKIT

Evaluation Kit for the MAX1772

Latest Discussions

No discussions on max1772 yet. Have something to say?

Start a Discussion on EngineerZone

Part Details

Documentation

Software & Part Ecosystem

Evaluation Kit

Latest Discussions

MAX1772

Features

Documentation

Data Sheet 1

Reliability Data 1

Software & Part Ecosystem

Evaluation Kits 1

MAX1772EVKIT

Features and Benefits

Evaluation Kits1

MAX1772EVKIT

Latest Discussions

Recently Viewed

MAX1772

Features

{{modalTitle}}

{{dropdownTitle}}

{{newProjectTitle}}

Documentation

Software & Part Ecosystem

Evaluation Kits 1

MAX1772EVKIT

MAX1772EVKIT

Features and Benefits

Evaluation Kits1

MAX1772EVKIT

Latest Discussions

Recently Viewed