Fuel Gauges: 2, 3, and 4 Series Li+ Battery Packs (> 5V Battery Voltage)



Data Sheets
Part Number Description Key Advantages
MAX1789, MAX17892 Advanced, Smart Battery-Pack Controllers

Industry's Smallest SBS-Compliant Battery Fuel Gauge with nFET Protection Drivers 
DS2775, DS2776, DS2777, DS2778 2-Cell, Stand-Alone, Li+ Fuel-Gauge IC with Protector and Optional SHA-1 Authentication

Industry's Smallest 2-Cell, Stand-Alone Fuel Gauge to Integrate an Li+ Protector and SHA-1 Authentication 
DS2788 Stand-Alone Fuel-Gauge IC with LED Display Drivers

The Industry's Smallest Stand-Alone Fuel Gauge That Integrates LED Display Drivers and a Pushbutton Input for Multiple Li+ Batteries 
DS2781 1-Cell or 2-Cell Stand-Alone Fuel Gauge IC

Complete Fuel Gauge IC for Accurate Remaining Battery Capacity Readings for 1- or 2-Cell Applications 



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
DS2775 
Fuel Gauge
Protector
Status Monitor
2 Cell Li-Ion 1-Wire 16 EEPROM
Current
Temperature
Time
Voltage
-
Over Voltage
Over-Current
Over/Under Voltage
4 9.2
Protection Circuitry
SHA-1 Authentication
-20 to +70 $2.94 @1k
DS2776 
Fuel Gauge
Protector
Status Monitor
2 Cell Li-Ion 1-Wire 16 EEPROM
Current
Temperature
Time
Voltage
-
Over Voltage
Over-Current
Over/Under Voltage
4 9.2
Protection Circuitry
SHA-1 Authentication
-20 to +70 $3.16 @1k
DS2777 
Fuel Gauge
Protector
Status Monitor
2 Cell Li-Ion 2-Wire 16 EEPROM
Current
Temperature
Time
Voltage
-
Over Voltage
Over-Current
Over/Under Voltage
4 9.2
Protection Circuitry
SHA-1 Authentication
-20 to +70 $3.43 @1k
DS2778 
Fuel Gauge
Protector
Status Monitor
2 Cell Li-Ion 2-Wire 16 EEPROM
Current
Temperature
Time
Voltage
-
Over Voltage
Over-Current
Over/Under Voltage
4 9.2
Protection Circuitry
SHA-1 Authentication
-20 to +70 $3.16 @1k
DS2788  Fuel Gauge 1-10 Cell Li-Ion 1-Wire 16 EEPROM
Current
Temperature
Voltage
FuelPack - 2.5 5.5
Digital Current Accumulation
External MOSFET Drivers
Integrated LED Drivers
On-chip Remaining Capacity Algorithms
Unique ID
-40 to +85 $2.93 @1k
DS2781  Fuel Gauge 1-2 Cell Li-Ion 1-Wire 40 EEPROM
Current
Temperature
Voltage
FuelPack - 2.5 10
Digital Current Accumulation
On-chip Remaining Capacity Algorithms
Unique ID
-40 to +85 $2.90 @1k
See All Battery Monitors, Protectors, and Selectors (35)