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Maxim > Products > [Power and Battery Management] 
MAX8808X, MAX8808Y, MAX8808Z
1A Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 244kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX8808X/MAX8808Y/MAX8808Z intelligent, stand-alone constant-current/constant-voltage (CCCV), thermally regulated linear chargers are designed for charging a single-cell lithium-ion (Li+) battery. The MAX8808X/MAX8808Y/MAX8808Z integrate the current- sense circuit, MOS pass element, and thermal-regulation circuitry, and eliminate the reverse-blocking Schottky diode to create the simplest and smallest charging solution for handheld equipment.

The MAX8808X functions as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge, and fullcharge indication. The MAX8808Y and MAX8808Z eliminate the prequalification state to allow startup into a load without a battery. Proprietary thermal-regulation circuitry limits the die temperature when fast-charging or while exposed to high ambient temperatures, allowing maximum charging current without damaging the IC.

The MAX8808X/MAX8808Y/MAX8808Z achieve high flexibility by providing an adjustable fast-charge current with an external resistor. Other features include a battery charging-status indicator (CHG-bar), an active-low control input (EN) for the MAX8808X and MAX8808Z (active-high control input for the MAX8808Y), and an active-low input power-source detection output (ACOK-bar).

The MAX8808X/MAX8808Y/MAX8808Z accept a +4.25V to +15V supply, but disable charging when the input voltage exceeds +7V to protect against unqualified or faulty AC adapters. The MAX8808X/MAX8808Y/ MAX8808Z operate over the extended temperature range (-40°C to +85°C) and are available in a compact 8-pin thermally enhanced 2mm x 2mm TDFN package with 0.8mm (max) height.

An evaluation kit is available:  MAX8808EVKIT  

Key Features   Applications/Uses
  		• Stand-Alone Linear 1-Cell Li+ Battery Charger
  		• No External FET, Reverse Blocking Diode, or Current-Sense Resistor Required
  		• Programmable Fast-Charge Current (1A max)
  		• Proprietary Die Temperature Regulation Control (+115°C)
  		• +4.25V to +15V Input Voltage Range with Input OVP Above +7V
  		• Charge-Current Monitor for Fuel Gauging
  		• Low Dropout Voltage—300mV at 500mA
  		• Input Power-Source Detection Output (ACOK-bar) and Charge-Enable Input (EN-bar or EN)
  		• Soft-Start Limits Inrush Current
  		• Charge-Status Output (CHG-bar) for LED or Microprocessor (µP) Interface
  		• Tiny 2mm x 2mm 8-Pin TDFN Package, 0.8mm (max) Height

    		  
  		• Cell Phones/Cordless Phones
  		• Charging Cradles and Docks
  		• Digital Still Cameras and MP3 Players
  		• Smartphones and PDAs
  		• USB Appliances

    Key Specifications:  Battery Chargers
    Part Number Cell Chemistry Lithium Ion Cells Protected VIN
    (V)    		 Charging VIN
    (V)    		 Charge Rate Set by Max. ICHG
    (A)    		 Charge Termination Charge Regulation Features EV Kit Package/Pins Smallest Available Pckg.
    (mm2)    		 Oper. Temp.
    (°C)    		 Price
    max max ≥ max w/pins See Notes
    MAX8808 
    Li-Ion
    Li-Polymer
    		 1 15 6.5 Resistor 1 External Control Linear
    Internal FET/Transistor
    Stand Alone
    Thermal Die Regulation
    USB Input
    		 Yes
    TDFN-EP/8
    		 4 -40 to +85 $1.40 @1k
    See All Battery Chargers (62)

    Diagram
    MAX8808X, MAX8808Y, MAX8808Z: Typical Operating Circuit
    Typical Operating Circuit

    Evaluation Kits
  		• MAX8808EVKIT

    Design Guides
  		• Power Management for Battery-Powered Equipment (PDF)

    Reliability Reports
  		• Reliability Report: MAX8808.pdf
  		• Show FIT data for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-8 of 8

    MAX8808 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8808XETA+TG104    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX8808YETA+T    
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0064 (PDF)
    Use pkgcode/variation: T822+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8808ZETA+T    
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0064 (PDF)
    Use pkgcode/variation: T822+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8808XETA+  
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0064 (PDF)
    Use pkgcode/variation: T822+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8808XETA+T    
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0064 (PDF)
    Use pkgcode/variation: T822+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8808XETA-T    
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0064 (PDF)
    Use pkgcode/variation: T822-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX8808YETA-T    
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0064 (PDF)
    Use pkgcode/variation: T822-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX8808ZETA-T    
    		Active TDFN-EP;8 pin;4 mm²
    Outline Drawing: 21-0168 (PDF)
    Land Pattern: 90-0064 (PDF)
    Use pkgcode/variation: T822-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

    More Information
  		• Topmark Coding: MAX8808
  		• Product Ad: Download

    Related Products
    MAX1898 Linear Charger for Single-Cell Li+ Battery
    MAX1501 Highly Integrated, Linear Battery Charger with Thermal Regulation for Portable Applications
    MAX1507 Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN
    MAX1508, MAX1508Y, MAX1508Z Linear Li+ Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOK Flag in 3mm x 3mm TDFN

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    Document Ref.: 19-3670; Rev 0; 2005-05-10
    This page last modified: 2005-08-19


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