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

Industry's Lowest IQ Stand-Alone Fuel Gauge with Protector

Product Details

Key Features

Applications/Uses

Parametric specs for Battery Fuel Gauges, Protectors, and Monitors
Functions Fuel Gauge
Protector
Battery Type 1 Cell Li-Ion
Fuel Gauge Algorithm ModelGauge m5
Interface 2-Wire
User Data Storage (Bytes) 122 NVM
Parameters Measured Current
State of Charge
Temperature
Time
Voltage
End Equipment Pack
Battery Protection Features Charger-Communication Timeout
Over Voltage
Over-Charge
Over-Current
Over-Temperature
Over/Under Voltage
VSUPPLY (V) (min) 2.3
VSUPPLY (V) (max) 4.9
Package/Pins TDFN-CU/14
WLP/15
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
1.86
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Simplified Block Diagram

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Parameters

Parametric specs for Battery Fuel Gauges, Protectors, and Monitors
Functions Fuel Gauge
Protector
Battery Type 1 Cell Li-Ion
Fuel Gauge Algorithm ModelGauge m5
Interface 2-Wire
User Data Storage (Bytes) 122 NVM
Parameters Measured Current
State of Charge
Temperature
Time
Voltage
End Equipment Pack
Battery Protection Features Charger-Communication Timeout
Over Voltage
Over-Charge
Over-Current
Over-Temperature
Over/Under Voltage
VSUPPLY (V) (min) 2.3
VSUPPLY (V) (max) 4.9
Package/Pins TDFN-CU/14
WLP/15
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
1.86

Key Features

  • Battery Health + Programmable Safety/Protection
    • Overvoltage (Temperature Dependent)
    • Overcharge Current 
    • Over/Undertemperature
    • Battery Internal Self-Discharge Detection (MAX17300/10 Only)
    • Ideal Diode Discharge During Charge Fault
    • Charging Prescriptions (JEITA)
    • Zero-Volt Charging Option
    • Undervoltage + SmartEmpty
    • Overdischarge/Short-Circuit 
  • Nonvolatile Memory for Stand-Alone Operation
    • ​History Logging, User Data (122 Bytes)
  • Low Quiescent Current
    • FETs Enabled: 24µA Active, 18µA Hibernate
    • FETs Disabled: 5µA Ship, 0.5µA/0.02µA DeepShip
  • Parallel Battery Management (MAX17300/10 Only)
  • Pushbutton Wakeup—Eliminates System Consumption Until Button Press
  • ModelGauge m5 EZ Algorithm
    • Percent, Capacity,Time-to-Empty/Full, Age
    • Cycle+™ Age Forecast
  • Dynamic Power—Estimates Power Capability
  • Precision Measurement Without Calibration
    • ​Current, Voltage, Power, Time, Cycles
    • Die Temperature​/Thermistor

Applications/Uses

  • Smartphones, Tablets, and 2-in-1 Laptops
  • Smartwatches and Wearables
  • Medical Devices, Health and Fitness Monitors
  • Digital Still, Video, and Action Cameras
  • Handheld Computers and Terminals
  • Handheld Radios
  • Home and Building Automation, Sensors
  • Smart Batteries

Description

The MAX17300–MAX17303/MAX17310–MAX17313 is a 24μA IQ stand-alone pack-side fuel gauge IC with protector and optional SHA-256 authentication for 1-cell lithium-ion/polymer batteries.

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

To prevent battery pack cloning, the IC integrates SHA-256 authentication with a 160-bit secret key. Each IC incorporates a unique 64-bit ID.

The fuel gauge uses ModelGauge m5 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 fuel-gauge accuracy.

The IC automatically compensates for cell aging, temperature, and discharge rate, and provides accurate state-of-charge (SOC) in milliampere-hours (mAh) or percentage (%) over a wide range of operating conditions.

Dynamic power functionality provides the instantaneous maximum battery output power which can be delivered to the system without violating the minimum system input voltage.

A Maxim 1-Wire® or 2-wire I2C interface provides access to data and control registers. The IC is available in a lead-free, 3mm x 3mm 14-pin TDFN and 1.7mm x 2.5mm 15-bump 0.5mm pitch WLP packages.

Simplified Block Diagram

MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313: Functional Diagram MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .