TI (Texas Instruments) BQ27541DRZTG4 Battery Type: Lithium-Ion (Li-Ion) Function: Fuel, Gas Gauge/Monitor Lead Free Status / Rohs Status: Compliant Mounting: Surface Mount Mounting Type: Surface Mount Operating Supply Voltage (max): 5.5V Operating Supply Voltage (min): 2.7V Operating Temp Range: -40C to 85C Operating Temperature: -40?°C ~ 85?°C Operating Temperature Classification: Industrial Package / Case: 12-VFDFN Exposed Pad Pin Count: 12 Series: Impedance Track?„? Type: Fuel Gauge Voltage - Supply: 2.7 V ~ 5.5 V