1. Products
  2. Power Management
  3. Battery Management
  4. Battery Charger IC
  5. Switching Battery Chargers
  6. MAX1647

New Content (1)


Features and Benefits

  • Charges Any Battery Chemistry: Li-Ion, NiCd, NiMH, Lead Acid, etc.
  • Intel SMBus 2-Wire Serial Interface (MAX1647)
  • Intel/Duracell Level 2 Smart Battery Compliant (MAX1647)
  • 4A, 2A, or 1A Maximum Battery-Charge Current
  • 11-Bit Control of Charge Current
  • Up to 18V Battery Voltage
  • 10-Bit Control of Voltage
  • ±0.75% Voltage Accuracy with External ±0.1% Reference
  • Up to 28V Input Voltage
  • Battery Thermistor Fail-Safe Protection

Product Details

The MAX1647/MAX1648 provide the power control necessary to charge batteries of any chemistry. In the MAX1647, 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 MAX1647 functions as a level 2 charger, compliant with the Duracell®/Intel Smart Battery Charger Specification. The MAX1648 omits the SMBus serial interface, and instead sets the charge voltage and current proportional to the voltage applied to external control pins.

In addition to the feature set required for a level 2 charger, the MAX1647 generates interrupts to signal the host when power is applied to the charger or 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 batteries have completed charge without interrogating the battery.

The MAX1647 is available in a 20-pin SSOP with a 2mm profile height. The MAX1648 is available in a 16-pin SO package.


  • Charger Base Stations
  • Notebook Computers
  • PDAs and Other Handheld Devices
  • Phones

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.

Product Recommendations

MAX1647 Companion Parts

Recommended Related Parts

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
MAX1647EAP+ Material Declaration Reliability Data 20-SSOP-5.3_MM
MAX1647EAP+T Material Declaration Reliability Data 20-SSOP-5.3_MM
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