MAX1645B
Info: : PRODUCTION
searchIcon
cartIcon

MAX1645B

Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Viewing: Part Details
arrow-icon

Not the part you were looking for?

viewall Go to Product Selection Table
file View Data Sheet (Rev.1)
Documentation View All Documentation
Part Models 2
1ku List Price
price unavailable
Features
  • Input Current Limiting
  • 175s Charge Safety Timeout
  • 128mA Wake-Up Charge
  • Charges Any Chemistry Battery: Li+, NiCd, NiMH, Lead Acid, etc.
  • Intel SMBus 2-Wire Serial Interface
  • Compliant with Level 2 Smart Battery Charger Spec Rev 1.0
  • +8V to +28V Input Voltage Range
  • Up to 18.4V Battery Voltage
  • 11-Bit Battery Voltage Setting
  • ±0.8% Output Voltage Accuracy with Internal Reference
  • 3A (max) Battery Charge Current
  • 6-Bit Charge-Current Setting
  • 99.99% (max) Duty Cycle for Low-Dropout Operation
  • Load/Source Switchover Drivers
  • >97% Efficiency
Additional Details
show more Icon

The MAX1645B is a high-efficiency battery charger capable of charging batteries of any chemistry type. It uses the Intel System Management Bus (SMBus™) to control voltage and current-charge outputs.

When charging lithium-ion (Li+) batteries, the MAX1645B automatically transitions from regulating current to regulating voltage. The MAX1645B can also limit line input current so as not to exceed a predetermined current drawn from the DC source. A 175s charge safety timer prevents "runaway charging" should the MAX1645B stop receiving charging voltage/current commands.

The MAX1645B employs a next-generation synchronous buck control circuitry that lowers the minimum input-to-output voltage drop by allowing the duty cycle to exceed 99%. The MAX1645B can easily charge one to four series Li+ cells.

Applications

  • Notebook Computers
  • Personal Digital Assistants
  • Point-of-Sale Terminals
Show More Arrow image
file View Data Sheet (Rev.1)
Documentation View All Documentation
Part Models 2
1ku List Price
price unavailable
modal bookmark icon

{{modalTitle}}

modal close icon

{{modalDescription}}

{{dropdownTitle}}

input down arrow
  • {{defaultSelectedText}}
    • {{#each projectNames}}
  • {{name}}
    • {{/each}} {{#if newProjectText}}
  • plus icon {{newProjectText}}
    • {{/if}}
{{#if toggleButtonDescription}}
{{toggleButtonDescription}}
{{/if}} {{#if newProjectTitle}}

{{newProjectTitle}}

{{projectNameErrorText}}

{{/if}}

MAX1645B

Documentation

3
overlayclose

Filters

1 Applied

mobileoverlaydownarrow
  • All
    TickIcon
  • Data Sheet
  • All
    TickIcon
  • English
  • Chinese
  • Japanese
resetfilter

Reset Filters

Data Sheet

3

PDF Vector

PDF

UPDATED 11/14/2006
English

MAX1645B: Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting Data Sheet (Rev.1)

Open PDF File

redirect
357.00K
download

Download PDF

PDF Vector

PDF

UPDATED 01/01/1900
Chinese

MAX1645B: 高级、与化学类型无关的Level 2电池充电器，带有输入限流 Data Sheet

Open PDF File

redirect
357.00K
download

Download PDF

PDF Vector

PDF

UPDATED 01/01/1900
Japanese

MAX1645B: 入力電流制限付き、あらゆるバッテリに対応したレベル2バッテリチャージャ Data Sheet

Open PDF File

redirect
357.00K
download

Download PDF

There are no results matching this criteria. Try resetting your filters or searching for a different term

close icon

Documentation

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
MAX1645BEEI+ 28-QSOP-150_MIL external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
MAX1645BEEI+T 28-QSOP-150_MIL external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 13, 2023

- 2361N

WAFER FAB

MAX1645BEEI+

PRODUCTION

MAX1645BEEI+T

PRODUCTION

pdf

pcn_2361n

external-icon

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 13, 2023

- 2361N

arrow down

WAFER FAB

MAX1645BEEI+

PRODUCTION

MAX1645BEEI+T

PRODUCTION

pdf

pcn_2361n

external-icon

Software & Part Ecosystem

Evaluation Kits 1

MAX1645BEVKIT

Evaluation Kit/Evaluation System for the MAX1645B

zoom

MAX1645BEVKIT

Evaluation Kit/Evaluation System for the MAX1645B

download icon

Download

 print icon

Print
MAX1645BEVKIT
Evaluation Kit/Evaluation System for the MAX1645B

Features and Benefits

  • Charges Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc.
  • SMBus-Compatible 2-Wire Serial Interface
  • 3A (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
Buy Now View Details

Product Detail

The MAX1645B evaluation kit (EV kit) is an efficient, multichemistry battery charger. It uses the Intel® System Management Bus (SMBus™) to control the battery regulation voltage, charger current output, and input current- limit set point.

The MAX1645B EV kit can charge one, two, three, or four series Li+ cells with a current up to 3A.

The MAX1645B evaluation system (EV system) consists of a MAX1645B EV kit and the Maxim SMBUSMON board. The MAX1645B EV kit includes Windows® 95/98/2000/XP-compatible software to provide a user-friendly interface.

Applications

  • Notebook Computers
  • PDAs and Other Handheld Devices
  • Point-of-Sale Terminals

Evaluation Kits1

MAX1645BEVKIT

Evaluation Kit/Evaluation System for the MAX1645B

Recently Viewed

Part Details
Documentation
Evaluation Kit
Latest Discussions