MAX1736

SOT23, Single-Cell Li+ Battery Charger for Current-Limited Supply

SOT23, Single-Cell Li+ Battery Charger


Please check latest availability status for a specific part variant.

Description

The MAX1736 is a simple, low-cost, single-cell lithium-ion (Li+) battery charger for small hand-held applications. When accompanied by a current-limited voltage source (such as a wall cube), the MAX1736 provides simple, accurate charging and termination control for single-cell Li+ batteries. The MAX1736EUT42 is preset to a 4.2V battery regulation voltage, while the MAX1736EUT41 is preset to 4.1V.

The MAX1736 initiates charging in one of four ways: battery insertion, charger power-up, battery voltage threshold, and by external manipulation of the EN pin. The device features an internal precharge current source that safely charges near-dead cells, as well as input-supply detection that shuts down the MAX1736 when the supply is removed to minimize battery current drain.

The MAX1736 accepts input voltages up to 22V, making it compatible with a wide range of input supplies. It has a single control input yet offers stand-alone and microprocessor-controlled operation. The MAX1736 is packaged in a small SOT23-6 package. An evaluation kit (EV kit) is available to reduce design time.
MAX1736: Typical Operating Circuit MAX1736: Typical Operating Circuit Enlarge+

Key Features

  • Small 6-Pin SOT23 Package
  • Stand-Alone or µP-Controlled Operation
  • 0.5% Voltage Set-Point Accuracy
  • Lowest Power Dissipation
  • Low 4.7V min Input Voltage
  • Top-Off Charging to Achieve Full Battery Capacity
  • No Inductor Required
  • Safely Precharges Near-Dead Cells
  • Automatic Power-Down when Input Power Removed

Applications/Uses

  • Cradle Chargers
  • Digital Still Cameras
  • PDAs and Other Handheld Devices
  • Self-Charging Battery Packs
  • Single-Cell Li+ Portable Applications
  • Small Handheld Equipment
  • Wireless Handsets
Part NumberLithium Ion CellsProtected VIN
(V)
Charging VIN
(V)
Charge Rate Set byMax. ICHG
(A)
Charge TerminationCharge RegulationOper. Temp.
(°C)
Package/PinsBudgetary
Price
maxmaxSee Notes
MAX1736 12222External Source2
Current Limit
Max. Voltage
Pulse-40 to +85
SOT-23/6
SOT/6
TDFN-EP/6
$1.50 @1k
See All Battery Chargers (75)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX1736EVKIT: Evaluation Kit for the MAX1736

CAD Symbols and Footprints

  • MAX1736ETT42+T
  • MAX1736EUT-T
  • MAX1736EUT41+
  • MAX1736EUT41+T
  • MAX1736EUT41-T
  • MAX1736EUT42+
  • MAX1736EUT42+T
  • MAX1736EUT42-T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAX17312
    1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

    • Battery Health + Programmable Safety/Protection
    • Nonvolatile Memory for Stand-Alone Operation
    • Low Quiescent Current

    MAX17313
    1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

    • Battery Health + Programmable Safety/Protection
    • Nonvolatile Memory for Stand-Alone Operation
    • Low Quiescent Current

    MAX17301
    1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

    • Battery Health + Programmable Safety/Protection
    • Nonvolatile Memory for Stand-Alone Operation
    • Low Quiescent Current

    MAX17302
    1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

    • Battery Health + Programmable Safety/Protection
    • Nonvolatile Memory for Stand-Alone Operation
    • Low Quiescent Current

    MAX17303
    1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

    • Battery Health + Programmable Safety/Protection
    • Nonvolatile Memory for Stand-Alone Operation
    • Low Quiescent Current

    MAX17311
    1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

    • Battery Health + Programmable Safety/Protection
    • Nonvolatile Memory for Stand-Alone Operation
    • Low Quiescent Current

    MAX17823H
    12-Channel, High-Voltage Sensor with Integrated 650mA Cell Balancing and Differential UART for Daisy-Chain Communication

    • AECQ-100 Grade 2 Temperature Range
    • Operating Voltage from 9V to 65V
    • Ultra-Low Power Operation

    MAX17853
    14-Channel High-Voltage Data-Acquisition System

    • 65V Operating Voltage
    • Ultra-Low-Power Operation
    • Redundant ADC and Comparator (COMP) Acquisitions

    MAX77860
    USB Type-C, 3A Switch-Mode Buck Charger with Integrated CC Detection, Reverse Boost, and ADC

    • Single-Input Switch Mode Charger
    • USB Type-C Detection
    • One Safeout LDO
    • I2C-Compatible Interface