MAX17055 1-Cell Fuel Gauge with ModelGauge m5 EZ
7uA 1-cell battery fuel gauge with ModelGauge m5 EZ algorithm, I2C/SMBus-style 2-wire serial interface, ALRT open-drain alert, thermistor bias input and Kelvin sense resistor pins.
Aliase:MAX17055 WLP, MAX17055 TDFN-EP
WLP-9 Top View
9 Pins
Pinout Table9
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| A1 | AIN | Analog | Auxiliary voltage input / battery insertion detect |
| A2 | SCL | Digital | Serial clock input, 2-wire, internal pulldown |
| A3 | CSN | Analog | Sense resistor negative, Kelvin to load side |
| B1 | BATT | Power | Power supply and battery voltage sense input |
| B2 | ALRT | Digital | Alert output, open-drain, active-low |
| B3 | REG | Power | Internal 1.8V regulator output, bypass 0.47uF to CSP |
| C1 | SDA | Digital | Serial data I/O, open-drain, internal pulldown |
| C2 | THRM | Power | Thermistor bias supply, connects to BATT during temp measurement |
| C3 | CSP | Ground | IC ground and sense resistor positive, Kelvin to battery side |