Overview







Fuel Gauge



Data Sheets
Part Number Description Key Advantages
MAX17048, MAX17049 Micropower 1-Cell/2-Cell Li+ ModelGauge ICs

Maximize Battery Run Time with Industry's Smallest Size, Lowest Power Fuel Gauges that Eliminate a Current-Sense Resistor 
MAX17047, MAX17050 ModelGauge m3 Fuel Gauge

ModelGauge m3 Smartens Up Your Dumb Battery! 
DS2784 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication

Industry's First Complete Fuel Gauge Solution to Integrate a 1-Cell Li+ Protector and SHA-1 Authentication System 



Key Specifications:

Battery Monitors, Protectors, and Selectors
Part Number Functions Battery Type Interface User Data Storage
(Bytes)		 Parameters Measured Fuel Gauge Algorithm Battery Protection VSUPPLY
(V)		 VSUPPLY
(V)		 Features Oper. Temp.
(°C)		 Budgetary
Price
min max See Notes
MAX17048  Fuel Gauge 1 Cell Li-Ion 2-Wire -
C Rate
State of Charge
Voltage
 ModelGauge - 2.5 4.5 - -40 to +85 $1.12 @1k
MAX17049  Fuel Gauge 2 Cell Li-Ion 2-Wire -
C Rate
State of Charge
Voltage
 ModelGauge - 4.5 - $1.34 @1k
MAX17047  Fuel Gauge 1 Cell Li-Ion 2-Wire -
Current
State of Charge
Temperature
Voltage
 ModelGauge m3 - 4.5
Battery Removal/Insertion Alert
Digital Current Accumulation
SOC/Voltage/Temperature Alert
 $1.71 @1k
MAX17050  Fuel Gauge 1 Cell Li-Ion 2-Wire -
Current
State of Charge
Temperature
Voltage
 ModelGauge m3 - 4.5
Battery Removal/Insertion Alert
Digital Current Accumulation
SOC/Voltage/Temperature Alert
 -
DS2784 
Fuel Gauge
Protector
 1 Cell Li-Ion 1-Wire 16 EEPROM
Current
Temperature
Time
Voltage
 FuelPack
Over Voltage
Over-Current
Over-Temperature
Over/Under Voltage
 4.6
Digital Current Accumulation
Internal MOSFET Drivers
On-chip Remaining Capacity Algorithms
Protection Circuitry
SHA-1 Authentication
Unique ID
 $3.96 @1k
See All Battery Monitors, Protectors, and Selectors (35)