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Maxim > Products > [Power and Battery Management] 
MAX8819, MAX8819A, MAX8819B, MAX8819C
PMIC with Integrated Charger and Smart Power Selector™ in a 4mm x 4mm TQFN

A Complete Power Solution for Handheld Applications Includes a Battery Charger, Three Step-Down Converters, and WLED Power


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Status
Part Number Status
MAX8819 This product is No Longer Available.
MAX8819A Active: In Production.
MAX8819B Active: In Production.
MAX8819C Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 452kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX8819_ is a complete power solution for MP3 players and other handheld applications. The IC includes a battery charger, step-down converters, and WLED power. It features an input current-limit switch to power the IC from an AC-to-DC adapter or USB port, a 1-cell lithium ion (Li+) or lithium polymer (Li-Poly) charger, three step-down converters, and a step-up converter with serial step dimming for powering two to six white LEDs. All power switches for charging and switching the system load between battery and external power are included on-chip. No external MOSFETs are required. The MAX8819C offers a sequenced power-up/power-down of OUT1, OUT2, and then OUT3.

Maxim's Smart Power Selector makes the best use of AC-to-DC adapter power or limited USB power. Battery charge current and input current limit are independently set. Input power not used by the system charges the battery. Charge current is resistor programmable and the input current limit can be selected as 100mA, 500mA, or 1A. Automatic input selection switches the system load from battery to external power. In addition, on-chip thermal limiting reduces the battery charge rate to prevent charger overheating.

An evaluation kit is available:  MAX8819AEVKIT  

Key Features   Applications/Uses
  • Smart Power Selector
  • Operates with No Battery Present
  • USB/AC Adapter One-Cell Li+ Charger
  • Three 2MHz Step-Down Converters
    • 95% Peak Efficiency
    • 100% Duty Cycle
    • ±3% Output Accuracy over Load/Line/Temperature
  • 2 to 6 Series WLED Driver with Dimming Control
  • Active-Low REG1 Reset Output
  • Short-Circuit/Thermal-Overload/Input Undervoltage/Overvoltage Protection
  • Power-Up/Down Sequencing (MAX8819C)
  • Total Solution Size: Less Than 90mm²

 
  		• Cellular Telephones
  		• Digital Cameras
  		• Handheld Instrumentation
  		• Low-Power Handheld Products
  		• MP3 Players
  		• PDAs
  		• Portable GPS Devices

    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
    MAX8819 
    Li-Ion
    Li-Polymer
    		 1 5.5 5.5
    Logic Input
    Resistor
    		 1
    Min. Charge Current
    Timer
    		 Linear
    Input Current Limit
    Internal FET/Transistor
    Smart Power Selector
    Thermal Die Regulation
    Timer
    USB Input
    		 Yes
    TQFN/28
    		 17 -40 to +85 $3.65 @1k
    See All Battery Chargers (62)

    Key Specifications:  Multifunction PMICs
    Part Number Primary Topology Monitor/Control Features DC-DC/Power Features LCD/LED/Flash/CCD Features Battery Charger Features Interface Type VIN
    (V)    		 VIN
    (V)    		 VOUT
    (V)    		 VOUT
    (V)    		 Max. IOUT
    (A)    		 Max. IOUT
    (A)    		 Oper. Freq.
    (kHz)    		 Package/Pins Smallest Available Pckg.
    (mm2)    		 Price
    min max min max ≥ ≤ max w/pins See Notes
    MAX8819  Step-Down
    Output OVP
    Shutdown
    Current Limit
    Fixed Freq./PWM
    Internal Pwr. FETs
    Soft Start
    Sync. Rectifier
    		 White LED
    Battery Charger
    Charge Timer
    Input Current Limit
    Smart Pwr. Selector
    Thermal Die Regulation
    Thermistor Input
    USB Input
    		 GPIO 4.1 5.5 1 24 0.5 0.5 2000
    TQFN/28
    		 17 $3.65 @1k
    See All Multifunction PMICs (83)

    Diagram
    MAX8819A, MAX8819B, MAX8819C, MAX8819D: Typical Operating Circuit
    Typical Operating Circuit

    Evaluation Kits
  		• MAX8819AEVKIT

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

    Reliability Reports
  		• Reliability Report: MAX8819A.pdf MAX8819B.pdf MAX8819C.pdf
  		• Show FIT data for:
  		• Request Reliability Report 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

    MAX8819 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8819DETI+T     N/A No Longer Available

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX8819DETI+     N/A No Longer Available TQFN;28 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0035 (PDF)
    Use pkgcode/variation: T2844+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8819A Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8819AETI+  
    		Active TQFN;28 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0035 (PDF)
    Use pkgcode/variation: T2844+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8819AETI+T    
    		Active TQFN;28 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0035 (PDF)
    Use pkgcode/variation: T2844+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8819B Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8819BETI+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX8819BETI+  
    		Active TQFN;28 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0035 (PDF)
    Use pkgcode/variation: T2844+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8819C Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8819CETI+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX8819CETI+  
    		Active TQFN;28 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0035 (PDF)
    Use pkgcode/variation: T2844+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• New Product Press Release 2008-10-15 
  		• Product Ad: Download

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    Document Ref.: 19-4166; Rev 1; 2009-05-11
    This page last modified: 2009-05-11


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