MAX1667

PRODUCTION

Chemistry-Independent, Level 2 Smart Battery Charger

1%-Accurate, Chemistry-Independent, Smart Battery Charger Easily Charges 2-4 Series Li+ Cells

Data Sheet (Rev. 1) Product Selection Table

Part Models: 2
1ku List Price: Starting From $8.45

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Overview

Charges Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc.
SMBus 2-Wire Serial Interface
Compliant with Duracell/Intel Smart Battery Charger Specification Rev. 1.0
4A, 3A, or 1A (max) Battery Charge Current
5-Bit Control of Charge Current
Up to 18.4V Battery Voltage
11-Bit Control of Voltage
±1% Voltage Accuracy
Up to +28V Input Voltage
Battery Thermistor Fail-Safe Protection
Greater than 95% Efficiency
Synchronous Rectifier

The MAX1667 provides the power control necessary to charge batteries of any chemistry. All charging functions are controlled through the Intel® System Management Bus (SMBus™) interface. The SMBus 2-wire serial interface sets the charge voltage and current and provides thermal status information. The MAX1667 functions as a Level 2 charger, compliant with the Duracell®/Intel Smart Battery Charger Specification.

In addition to the feature set required for a Level 2 charger, the MAX1667 generates interrupts to signal the host when power is applied to the charger or when a battery is installed or removed. Additional status bits allow the host to check whether the charger has enough input voltage, and whether the voltage on or current into the battery is being regulated. This allows the host to determine when lithium-ion (Li+) batteries have completed the charge without interrogating the battery.

The MAX1667 is available in a 20-pin SSOP with a 2mm profile height.

Applications

Charger Base Stations
Notebook Computers
PDAs and Other Handheld Devices
Phones

Part Models: 2
1ku List Price: Starting From $8.45

Documentation

Data Sheet 1

MAX1667: Chemistry-Independent, Level 2 Smart Battery Charger Data Sheet (Rev.1) 06/18/2003

Technical Articles 1

Smart Battery-Charging Schemes for Level 2 Chargers are Accurate and Efficient 03/01/2001

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
MAX1667EAP+	20-SSOP-5.3_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX1667EAP+T	20-SSOP-5.3_MM	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 13, 2023 - 2361N WAFER FAB
		pcn_2361n
MAX1667EAP+	PRODUCTION
MAX1667EAP+T	PRODUCTION

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Battery Charger ICs 2
MAX1647	PRODUCTION	Chemistry-Independent Battery Chargers
MAX1645		Advanced-Chemistry-Independent, Level-2 Battery Chargers with Input Current Limiting

Evaluation Kits

Evaluation System for the MAX1667

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Features and Benefits

Charges Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc.
SMBus-Compatible 2-Wire Serial Interface
4A, 3A, or 1A (max) Battery Charge Current
Up to 18.4V Battery Voltage
Up to +28V Input Voltage
Easy-to-Use Software Included
Proven PC Board Layout
Fully Assembled and Tested Surface-Mount Board

Product Details

The MAX1667 evaluation system (EV system) consists of a MAX1667 evaluation kit (EV kit) and a companion Maxim SMBus™ Interface Board. The MAX1667 EV kit simplifies evaluation of the MAX1667 chemistry-independent Level 2 smart battery charger.

The Maxim SMBus interface board (MAXSMBus) allows an IBM®-Compatible personal computer to use its parallel port to emulate an Intel® system management bus (SMBus) 2-wire interface. Windows® 95/98 software provides a user friendly interface to exercise the MAX1667's features.

Order the MAX1667 EV system for complete IBM PC-based evaluation of the MAX1667. Order the MAX1667 EV kit if you already have an SMBus interface.