MAX17312

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

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


Please check latest availability status for a specific part variant.

Description

The MAX17301–MAX17303/MAX17311–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.

MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313: Functional Diagram MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313: Functional Diagram Enlarge+

Key Features

  • Battery Health + Programmable Safety/Protection
    • Overvoltage (Temperature Dependent)
    • Overcharge Current 
    • Over/Undertemperature
    • 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: 7µA Ship, 0.5µA DeepShip, 0.1µA UV-Shutdown
  • 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

See parametric specs for Battery Fuel Gauges, Protectors, and Monitors (52)


Part NumberFunctionsBattery TypeInterfaceUser Data Storage
(Bytes)
Parameters MeasuredFuel Gauge AlgorithmApplicationsBattery ProtectionVSUPPLY
(V)
VSUPPLY
(V)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
minmaxSee Notes
MAX17301 
Fuel Gauge
Protector
1 Cell Li-Ion2-Wire122 NVM
Current
State of Charge
Temperature
Time
Voltage
ModelGauge m5Pack
2-Level
Charger-Communication Timeout
Over Voltage
Over-Charge
Over-Current
Over-Temperature
Over/Under Voltage
2.34.9
TDFN-CU/14
WLP/15
-40 to +85$2.04 @1k
MAX17302 2-Wire
Charger-Communication Timeout
Over Voltage
Over-Charge
Over-Current
Over-Temperature
Over/Under Voltage
TDFN-CU/14
WLP/15
$1.86 @1k
MAX17303 2-Wire
Charger-Communication Timeout
Over Voltage
Over-Charge
Over-Current
Over-Temperature
Over/Under Voltage
TDFN-CU/14
WLP/15
$1.20 @1k
MAX17311 1-Wire
2-Level
Charger-Communication Timeout
Over Voltage
Over-Charge
Over-Current
Over-Temperature
Over/Under Voltage
TDFN-CU/14
WLP/15
$2.04 @1k
MAX17312 1-Wire
Charger-Communication Timeout
Over Voltage
Over-Charge
Over-Current
Over-Temperature
Over/Under Voltage
TDFN-CU/14
WLP/15
$1.86 @1k
MAX17313 1-Wire
Charger-Communication Timeout
Over Voltage
Over-Charge
Over-Current
Over-Temperature
Over/Under Voltage
TDFN-CU/14
WLP/15
$1.20 @1k

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.

MAX17301GEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17301XEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17311GEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17311XEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17302GEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17302XEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17312GEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17312XEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17303GEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17303XEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17313GEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
MAX17313XEVKIT: Evaluation Kit for the MAX17301, MAX17302, MAX17303, MAX17311, MAX17312, MAX17313
Request Reliability Report for: MAX17312 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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:

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