DS2781E+ Maxim Integrated Products, DS2781E+ Datasheet - Page 12

• Manufacturer Part Number: DS2781E+
• Description: IC FUEL GAUGE BATT 8TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of DS2781E+

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 2.5 V ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP
• Operating Supply Voltage: 2.5 V to 10 V
• Supply Current: 70 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 11. Top-Level Algorithm Diagram
Accumulated
Current (ACR) (R/W)
Average Current (R)
Aging Cap (AC)
(2 bytes EE)
Age Scalar (AS)
Sense Resistor’
(RSNSP) (1byte EE)
Charge Voltage
(VCHG) (1 byte EE)
Min Chg Current
(IMIN) (1 byte EE)
Active Empty
Voltage (VAE)
(1 byte EE)
Active Empty
Current (IAE)
(1 byte EE)
Voltage
Temperature
Current
(1 bytes EE)
Parameters
(EEPROM)
16 bytes
Cell
(R)
(R)
(R)
Available Capacity Calculation
ACR Housekeeping
Capacity Look-up
Learn Function
Age Estimator
12 of 31
FULL
Active Empty
Standby Empty SE(T)
Remaining Active Absolute
Capacity (RAAC) mAh
Remaining Stand-by Absolute
Capacity (RSAC) mAh
Remaining Active Relative
Capacity (RARC) %
Remaining Stand-by Relative
Capacity (RSRC) %
FULL(T)
AE(T)
(R)
(R)
(R)
(R)
(R)
(R)
(R)