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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX17300 Datasheet

1-Cell ModelGauge m5 EZ Fuel Gauge

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MAX17300-MAX17303/
1-Cell ModelGauge m5 EZ Fuel Gauge with
MAX17310-MAX17313
Protector, Internal Self-Discharge Detection
and SHA-256 Authentication
General Description
The MAX17300-MAX17303/ MAX17310-MAX17313 is a
24μA IQ stand-alone pack-side fuel gauge IC with protec-
tor, optional battery internal self-discharge detection and
optional SHA-256 authentication for 1-cell lithium-ion/poly-
mer batteries.
The IC monitors the voltage, current, temperature, and
state of the battery to provide against over/undervoltage,
overcurrent, short-circuit, over/undertemperature, over-
charge, and internal self-discharge conditions using exter-
nal high-side N-FETs, and provides charging prescription
to ensure that the lithium-ion/polymer battery operates un-
der 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 com-
bines 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, temper-
ature, 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.
Applications
● 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
Benefits and 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
Ordering Information appears at end of data sheet.
Simple Fuel Gauge with Protector
Circuit Diagram
BATTERY PACK
SYSTEM
PK+
CP
CHG
DIS
10Ω
0.1µF
ZVC
BATT
0.1µF
MAX1730x
MAX1731x
OPTIONAL PFAIL
PCKP
OPTIONAL (MAX173x1 ONLY)
NTC THERMISTOR
TH
REG
ALRT/PIO
SDA/DQ
SCL/OD
(WLP)
(TDFN)
GND CSP EP
CSN
Secondary
Protector
0.47µF
SENSE
RESISTOR
1kΩ
0.1µF
HOST
µP
PK-
ModelGauge and Cycle+ are trademarks of Maxim Integrated Products, Inc.
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
19-100463; Rev 7; 5/21


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX17300 Datasheet

1-Cell ModelGauge m5 EZ Fuel Gauge

No Preview Available !

MAX17300-MAX17303/
MAX17310-MAX17313
1-Cell ModelGauge m5 EZ Fuel Gauge with
Protector, Internal Self-Discharge Detection and
SHA-256 Authentication
TABLE OF CONTENTS
General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Benefits and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Simple Fuel Gauge with Protector Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Absolute Maximum Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
14 TDFN-EP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
15 WLP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Typical Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Pin Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
WLP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
TDFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Protector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Protector Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Voltage Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Ideal Diode Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Current Thresholds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Overcurrent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Fast Overcurrent Comparators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Overcurrent Comparator Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Slow Overcurrent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Temperature Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Other Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Battery Internal Self-Discharge Detection (ISD) (MAX17300/MAX17310 Only) . . . . . . . . . . . . . . . . . . . . . . . 40
Permanent Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Disabling FETs by Pin-Control or I2C Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Charging Prescription . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Step Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Zero-Volt Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Parallel Battery Management (MAX17300/MAX17310 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
ModelGauge m5 Algorithm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Wakeup/Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
www.maximintegrated.com
Maxim Integrated | 2


Part Number MAX17300
Description 1-Cell ModelGauge m5 EZ Fuel Gauge
Maker Maxim Integrated
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MAX17300 Datasheet PDF






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