STMicroelectronics STC3100
The STC3100 monitors the critical parameters of a single-cell Li-Ion battery (voltage, temperature and current) and includes hardware functions to implement a gas gauge for battery charge monitoring, based on a programmable 12- to 14-bit A/D converter. With a typical 30 milliOhms external sense resistor, the battery current can be up to 2.5 A and the accumulator system provides a capacity up to +/-7000 mAh with a resolution of 0.2 mAh. The device is programmable through the I2C interface.| Part No. | STC3100 |
|---|---|
| Datasheet | STC3100 Download |
| Manufacturer |  STMicroelectronics |
| Description | Battery monitor |
| Buy | Stock & Price |
FEATURES
● Battery voltage monitoring● Internal temperature sensor
● Coulomb counter with 12/14-bit AD converter, +/- 80 mV input voltage range
● Internal or external 32768 Hz time base
● I2C interface for gas gauge monitoring and device control
● 32-RAM bytes
● 8-byte unique device ID
● One general-purpose I/O
APPLICATIONS
● Cellular phones, PDA, MP3 players, cordless phones● Digital cameras, USB appliances, Bluetooth devices
DESCRIPTION
MiniSO-8 (Plastic micropackage) DFN8 3x3 (Plastic micropackage) Pin connections (top view) IO0 1 ROSC 2 SDA 3 SCL 4 8 VIN 7 VCC 6 CG 5 GND January 2009 Rev 1 1/21 21 Block diagram 1 Block diagram Figure 1. STC3100 internal block diagram STC3100 VCC SCL SDA Accumulators and control registers 1.2 V reference 32 kHz time base Oscillator AD converter 11 bits (unsigned) MUX Temp sensor AD converter 12 / 14 bits (signed) CG+ CG- ROSC VIN CG General-purpose I/O line IO0 I2C interface RAM & ID registers GND AM00830 2/21 STC3100 2 Pin assignment Pin assignment Note: Table 1.
