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Maxim > Solutions > Battery Management

Fuel Gauges: 1 Li+ cell battery packs (< 4.4V battery voltage)

DATA SHEETS
Display Title/Parts Key Advantages
QV  PDF Current Monitor and Accumulator with Integrated Sense Resistor
DS2741

High-Side Current Sensing Allows Detection of Downstream Failure and Avoids Ground Disturbance
QV  PDF 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication
DS2784

Industry's First Complete Fuel Gauge Solution to Integrate a 1-Cell Li+ Protector and SHA-1 Authentication System
QV  PDF Low-Cost, 2-Wire Battery Monitor with Ratiometric A/D Inputs
DS2746

2-Wire Fuel Gauge Measures Battery Current and Voltage and Includes Ratiometric Voltage Inputs that Can Be Used to Sample Thermistor, Pack ID, or Another Voltage Source
QV  PDF High-Accuracy Battery Fuel Gauge with Programmable Suspend Mode
DS2756

Provides Key Hardware Components Required to Accurately Estimate Remaining Capacity by Integrating Low-Power Precision Measurements of Temperature, Voltage, Current, Current Accumulation, and Nonvolatile Data Storage
QV  PDF Low-Cost I²C Battery Monitor
DS2745

Low-cost battery fuel gauge that monitors current, voltage, and temperature
QV  PDF Stand-Alone Fuel Gauge IC
DS2782

2-wire stand-alone fuel-gauge IC calculates remaining battery capacity and simplifies software development
QV  PDF High-Precision Li+ Battery Monitor with 2-Wire Interface
DS2764

2-wire battery monitor integrates single-cell protector
QV  PDF Stand-Alone Fuel Gauge IC
DS2780

Stand-Alone Fuel-Gauge IC Calculates Remaining Battery Capacity and Simplifies Software Development
QV  PDF High-Precision Li+ Battery Monitor with Alerts
DS2762

1-Wire Battery Monitor Integrates Single-Cell Protector and Alerts System when Current or Temperature Exceeds User-Defined Limits
QV  PDF High-Precision Coulomb Counter
DS2740

High-Precision Battery Fuel Gauge Costs Less than $1.00 Ideal for Handheld Products



Key Specifications:  Battery Protectors, Selectors and Monitors
Part Number Functions Battery Type Interface User Data Storage
(Bytes)
Parameters Measured Battery Protection VSUPPLY
(V)
VSUPPLY
(V)
Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
min max max w/pins
DS2741  Fuel Gauge 1 Cell Li-Ion 2-Wire -
Current
Temperature
Time
- 2.5 4.5
TDFN-EP/14
9.6 -20 to +70
DS2784 
Fuel Gauge
Protector
1 Cell Li-Ion 1-Wire 16 EEPROM
Current
Temperature
Time
Voltage
Over Voltage
Over-Current
Over-Temperature
Over/Under Voltage
2.5 4.6
TDFN/14
15 -40 to +85
DS2746  Fuel Gauge
1 Cell Li-Ion
3-Cell NiMH
2-Wire -
Current
Voltage
- 2.5 5.5
TDFN-EP/10
9.6 -40 to +85
DS2756  Fuel Gauge
1 Cell Li-Ion
3-Cell NiMH
1-Wire
8 SRAM
96 EEPROM
Current
Temperature
Voltage
- 3 5.5
TSSOP/8
20.3 -40 to +85
DS2745  Fuel Gauge
1 Cell Li-Ion
3-Cell NiMH
2-Wire -
Current
Temperature
Voltage
- 2.5 5.5
µMAX/8
16.2 -40 to +85
DS2782  Fuel Gauge 1-2 Cell Li-Ion 2-Wire 40 EEPROM
Current
Temperature
Voltage
- 2.5 5.5
TDFN/10
TSSOP/8
20.3 -40 to +85
DS2764 
Fuel Gauge
Protector
1 Cell Li-Ion 2-Wire 40 EEPROM
Current
Temperature
Voltage
Over-Current
Over/Under Voltage
2.5 5.5
TSSOP/16
33.4 -40 to +85
DS2780  Fuel Gauge 1-2 Cell Li-Ion 1-Wire 40 EEPROM
Current
Temperature
Voltage
- 2.5 5.5
TDFN/10
TSSOP/8
11.3 -40 to +85
DS2762 
Fuel Gauge
Protector
Status Monitor
1 Cell Li-Ion 1-Wire
16 SRAM
32 EEPROM
Current
Temperature
Voltage
Over-Current
Over/Under Voltage
2.5 5.5
FCHIP/12
TSSOP/16
7 -40 to +85
DS2740  Fuel Gauge
1 Cell Li-Ion
3-Cell NiMH
1-Wire - Current - 2.7 5.5
µMAX/8
16.2 -40 to +85
See All Battery Protectors, Selectors and Monitors (25)



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