LTC2941CMS8E#PBF

LTC2941 is a battery gas gauge with I²C interface. It measures battery charge state in battery supplied handheld PC and portable product applications. Its operating range is perfectly suited for single-cell Li-Ion batteries. A precision coulomb counter integrates current through a sense resistor between the battery’s positive terminal and the load or charger. The measured charge is stored in internal registers. An SMBus/I²C interface accesses and configures the device. It features programmable high and low thresholds for accumulated charge. If a threshold is exceeded, the device communicates an alert using either the SMBus alert protocol or by setting a flag in the internal status register. It is widely used in application such as low power handheld products, cellular phones, MP3 player, cameras, GPS etc.

• Indicates accumulated battery charge and discharge
• High accuracy analogue integration
• High side sense, 1% charge accuracy
• Configurable alert output/charge complete input
• Operating voltage range is 2.7V to 5.5V
• Quiescent current is 70µA typical at (TA = 25°C)
• Total charge error is ±1% maximum at (10mV ≤ VSENSE ≤ 50mV DC, TA = 25°C)
• Sense voltage differential input range is ±50mV max at (VSENSE+ – VSENSE–, TA = 25°C)
• Operating temperature is 0°C to 70°C
• Package style is 8-lead plastic MSOP

Ghi chú

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party