1. Products
  2. Power Management
  3. Battery Management
  4. Battery Charger IC
  5. Switching Battery Chargers
  6. MAX8900B


Features and Benefits

  • 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

Product Details

The MAX8900_ is a high-frequency, switch-mode charger for a 1-cell lithium ion (Li+) or lithium polymer (Li-Poly) battery. It delivers up to 1.2A of current to the battery from 3.4V to 6.3V (MAX8900A/MAX8900C) or 3.4V to 8.7V (MAX8900B). The 3.25MHz switch-mode charger is ideally suited to small portable devices such as headsets and ultra-portable media players because it minimizes component size and heat.

Several features make the MAX8900_ perfect for high-reliability systems. The MAX8900_ is protected against input voltages as high as +22V and as low as -22V. Battery protection features include low voltage prequalification, charge fault timer, die temperature monitoring, and battery temperature monitoring. The battery temperature monitoring adjusts the charge current and termination voltage as described in the JEITA* specification for safe use of secondary lithium-ion batteries.

Charge parameters are easily adjustable with external components. An external resistance adjusts the charge current from 50mA to 1200mA. Another external resistance adjusts the prequalification and done current thresholds from 10mA to 200mA. The done current threshold is very accurate achieving ±1mA at the 10mA level. The charge timer is adjustable with an external capacitor.

The MAX8900_ is available in a 0.4mm pitch, 2.44mm x 2.67mm x 0.64mm WLP package.


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

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

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
MAX8900BEWV+ Material Declaration Reliability Data Wafer-Level Package 5x6 Bump, Full Array
MAX8900BEWV+T Material Declaration Reliability Data Wafer-Level Package 5x6 Bump, Full Array
Wafer Fabrication Data

Sample & Buy

Ordering FAQs

See our Ordering FAQs for answers to questions about online orders, payment options and more.


Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Price Table Help


Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

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.