MAX17332
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MAX17332

AccuCharge + ModelGauge m5 EZ 1-Cell Charger, Fuel Gauge, and Protector

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AccuCharge + ModelGauge m5 EZ 1-Cell Charger, Fuel Gauge, and Protector

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.71
Features
  • Non-Volatile Programmable Stand-Alone Charger
    • 1% Charge Current, 256 Current Settings
    • 0.25% Charge Voltage, 2.42V to 4.8V, Configurable
    • Optional Manual Charge Control
    • FET Temperature Limit and Heat Regulation
    • Prequal, SmartFull, and Step-Charging Options
    • JEITA—9 Temperature Regions
  • Battery Health + Programmable Safety/Protection
    • Overvoltage/Overcharge Current
    • Temperature Region Dependent
    • Overcharge/Discharge/Short-Circuit Current
    • Over/Under Temperature
    • Zero-Volt or >1.8V Charging Option
    • Undervoltage + SmartEmpty
  • Pushbutton Wakeup/Factory Ship Mode (0.5μA)
  • ModelGauge m5 EZ Algorithm
    • Percent, Capacity,Time-to-Empty/Full, Age
    • Cycle+™ Age Forecast + Age-Scheduled Charging
  • Dynamic Power—Estimates Power Capability
  • SHA-256 Authentication to Prevent Cloning
  • Precision Measurement Without Calibration
    • Current, Voltage, Power, Time, Cycles
    • Die Temperature and two Thermistors
  • History Logging, User Data
  • Low Quiescent Current
    • FETs Enabled: 35μA Active, 21μA Hibernate
    • FETs Disabled: 8μA Ship, 0.5μA Shutdown
  • 2-Wire (I2C) and 1-Wire®
  • 1.9 mm x 2.5 mm 15-Bump 0.5mm Pitch Wafer-Level Package (WLP)
Additional Details
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The MAX17332 is a 35μA IQ stand-alone charger, fuel gauge, protector, and battery internal self-discharge detection IC for 1-cell lithium-ion/polymer batteries. When a voltage source is present, the IC regulates charging by modulating the charge N-FET, using AccuCharge™charger technology. The IC regulates charge voltage, current, and FET temperature. Stand-alone charging is supported by flexible configuration in nonvolatile memory. The IC supports the following applications:

  • Low-Power Charging
    • 1mA to 500mA directly from universal 5V USB
    • No USB identification/coordination needed
  • High-Power Parallel Packs (>1000mA)
    • Independently charges parallel packs
    • Prevents cross-charging for parallel batteries
    • Coordinates external DC-DC with alerts
    • Minimizes dropout and heat
  • Protection and Charging Control—pack or host side

The IC ideal diode circuit supports a quick response to system transients and adapter removal with low voltage drop across the CHG FET.

The IC uses the ModelGauge™ m5 EZ algorithm that combines the short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge to provide industry-leading accuracy. The IC automatically compensates for cell aging, temperature, and discharge rate while providing accurate state-of-charge (SOC) in milliampere-hours (mAh) or percentage (%) over a wide range of operating conditions.

The IC monitors the voltage, current, temperature, and state of the battery to provide protection against over/undervoltage, overcurrent, short-circuit, over/undertemperature and overcharge conditions, and internal self-discharge protection using external high-side N-FETs to ensure that the lithium-ion/polymer battery operates under safe conditions which prolongs the life of the battery.

APPLICATIONS

  • USB PPS and Direct Charging
  • Smart Batteries and Hybrid Supercap Batteries
  • Dual Screen Smartphones, Tablets
  • Hearables, Wearables, Smartwatches
  • Medical Devices, Health, Fitness Monitors
  • Handheld Radios, Computers, Accessories
  • Home/Building Automation, Sensors, Cameras
  • Parallel Battery AR/VR Systems
Part Models 2
1ku List Price Starting From $2.71

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX17332X22+
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MAX17332X22+T
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Product Lifecycle

PCN

Nov 17, 2022

- 2350

DESIGN

MAX17332X22+

PRODUCTION

MAX17332X22+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Nov 17, 2022

- 2350

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DESIGN

MAX17332X22+

PRODUCTION

MAX17332X22+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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MAX17332EVKIT

Evaluation Kit for MAX17332

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MAX17332EVKIT

Evaluation Kit for MAX17332

Evaluation Kit for MAX17332

Features and Benefits

  • ModelGauge m5 Algorithm
  • Charges, Monitors, and Protects a 1S Battery
  • Full Protection Solution On-Board for Evaluation
  • Battery Voltage (VBATT) Range of +2.16V to +4.9V with Default Hardware
  • Input Voltage up to 5.7V
  • Default Current Range -5A (Discharge) to +2.56A (Charge) with 10mΩ Sense Resistor (Higher Currents can be Supported by Changing to a Smaller Sense Resistor)
  • Two Thermistor Measurements
  • On-Board I2C Communication Interface with Built-In MAXUSB Interface
  • Windows 7 or Newer Compatible Software
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17332 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that evaluates the standalone charger, fuel gauge IC with protector and optional SHA-256 authentication for 1 cell lithium-ion/polymer batteries.

The MAX17332 EV kits include the IC evaluation board with integrated I2C interface and USB micro-B cable. Windows® based graphical user interface (GUI) software is available for use with the EV kit and can be downloaded from MAX17332 product page under the Design Resources tab. Windows 7 or newer Windows operating system is required to use with the EV kit GUI software.

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