TI (Texas Instruments) BQ20Z75DBT-V180 Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol) Function: Fuel, Gas Gauge/Monitor, Overvoltage Protection Lead Free Status / Rohs Status: Lead free / RoHS Compliant Mounting Type: Surface Mount Operating Temperature: -40?°C ~ 85?°C Package / Case: 38-TFSOP (0.173", 4.40mm Width) Series: Impedance Track?„? Voltage - Supply: 4.5 V ~ 25 V