MAX8900A

PRODUCTION

1.2A Switch-Mode Li+ Chargers with ±22V Input Rating and JEITA Battery Temperature Monitoring

JEITA-Compliant Battery Chargers that Minimize Solution Size and Heat in Space-Constrained Consumer Electronics

Data Sheet (Rev. 4) Product Selection Table

Part Models: 2
1ku List Price: Starting From $2.32

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Part Details

3.25MHz Switching Li+/Li-Poly Battery Charger
JEITA Battery Temperature Monitor Adjusts Charge Current and Termination Voltage
4.2V ±0.5% Battery Regulation Voltage (Alternate 4.1V Target Available on Request)
Adjustable Done Current Threshold
- Adjustable from 10mA to 200mA
- ±1mA Accuracy at 10mA
High-Efficiency and Low Heat
Uses a 2.0mm x 1.6mm Inductor
Positive and Negative Input Voltage Protection (±22V)
Up to +20V Operating Range (Alternate OVLO Ranges Available on Request)
Supports No-Battery Operation
Fault Timer
Charge Status Outputs
2.44mm x 2.67mm x 0.64mm Package

Part Models: 2
1ku List Price: Starting From $2.32

Documentation

Data Sheet 1

MAX8900-MAX8900C: 1.2A Switch-Mode Li+ Chargers with ±22V Input Rating and JEITA Battery Temperature Monitoring Data Sheet (Rev.4) 11/25/2014

Technical Articles 3

Important Design Considerations for Heart-Rate and Fitness Monitors 05/10/2010

Introduction to Hearing Aids and Important Design Considerations 05/10/2010

The Basics of USB Battery Charging 12/09/2010

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
MAX8900AEWV+	Wafer-Level Package 5x6 Bump, Full Array	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX8900AEWV+T	Wafer-Level Package 5x6 Bump, Full Array	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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

Evaluation Kits

Evaluation Kit for the MAX8900A and MAX8900B

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Features and Benefits

3.25MHz Switching Li+/Li-Poly Battery Charger
JEITA Battery Temperature Monitor Adjusts Charge Current and Termination Voltage
- On-Board 3380K NTC Thermistor
- On-Board Potentiometer Allows Easy Evaluation
Battery Fast-Charge Current-Limit Adjustment Range of 50mA to 1200mA
- Dynamic Charge Current Programming Using MOSFET and Resistor Array on the EV Kit
- Potentiometer Adjustment Available
Prequalification and Done Threshold Adjustment Range of 10mA to 200mA
- Dynamic Charge Current Programming Using MOSFET and Resistor Array on the EV Kit
- Potentiometer Adjustment Available
Selectable Charge Source Connector 2.1mm Barrel or Micro-USB
Three Status LED Indicators
Fully Assembled and Tested

Product Details

The MAX8900A evaluation kit (EV kit) is a fully assembled and tested circuit for evaluating the MAX8900A switch-mode Li+/Li-Poly charger with ±22V input rating and JEITA* battery temperature monitoring. The MAX8900A charges a 1-cell lithium-ion (Li+) or lithium-polymer (Li-Poly) battery. The MAX8900A delivers up to 1.2A of current to the battery from a 3.4V to 6.3V supply. External resistors and potentiometers adjust the fast-charge current and the prequalification and done current thresholds. A JEITA battery temperature monitor adjusts charge current and termination voltage.

The MAX8900A EV kit comes with the MAX8900A installed, but can also be used to evaluate the MAX8900B with IC replacement of U1. Request a free sample of the MAX8900B when you order the MAX8900A EV kit.

Applications

Digital Cameras
eBook
GPS, PND
Headsets and Media Players
Smartphones
USB Charging

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