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ST’s battery fuel gauge ICs can be located in the battery pack or in the handheld device and integrate functions to monitor the battery voltage, current and temperature. Using a built-in Coulomb counter, these fuel gauge ICs calculate battery charge and store the data in 16-bit resolution for retrieval by the system controller. Access is via an industry-standard I²C interface, enabling the controller to create an accurate graphical representation of the remaining battery-operating time.
Battery-monitoring fuel gauge ICs combine a small footprint with outstanding measurement accuracy and extremely low power consumption to increase battery runtime and lifespan in mobile phones, multimedia players, digital cameras, and other space-constrained portable gadgets.
| Part Number | Package | Marketing Status | Automotive Grade | Operating Temperature min (°C) | Operating Temperature max (°C) | Supply Current(Icc) typ (mA) | Supply Voltage(VDD) min (V) | Supply Voltage(VDD) max (V) | General Description | Fabrication Technology |
| STC3115 | Flip-Chip 400u; UFDFPN 2X3 10L | Active | _ | -40 | 85 | 0.045 | 2.7 | 4.5 | Gas gauge IC with alarm output for handheld applications | HCMOS ANALOG & RF |
| STC3100 | MSOP/TSSOP 8; VDFPN 8 3x3x1.0 | Active | _ | -40 | 85 | 0.1 | 2.7 | 5.5 | Battery monitor IC with Coulomb counter/gas gauge | HCMOS ANALOG & RF |
| STC3117 | Flip-Chip 400u | Active | _ | -40 | 85 | 0.04 | 2.7 | 4.5 | Gas gauge IC with battery charger control for handheld applications | - |
| GG25L | Flip-Chip 400u | NRND | _ | -40 | 85 | 0.045 | 2.7 | 4.5 | Gas gauge IC with alarm output | - |
| STC3105 | TDFN 3.0X2.0X0.75 8L PITCH 0.65 | NRND | _ | -40 | 85 | 0.1 | 2.7 | 5.5 | Battery monitor IC with alarm output for gas gauge applications | HCMOS ANALOG & RF |
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