With the advent of the Internet of Things, battery-powered devices are quickly becoming the norm in many connected applications. ON Semiconductor offers unique solutions for the protection, monitoring, and charging of the battery-connected devices powering the Internet of Things.
The LC051xx family of battery protection controllers integrates a battery protection circuit with a power MOSFET, enabling the design of a complete battery protection solution with few external parts.
- Integrated power MOSFET
- Low RDS(ON)
- Few external parts required
MONITORING: LC709203F Fuel Gauge for 1-Cell Lithium-Ion Batteries
The LC709203F measures the battery’s Relative State of Charge (RSOC) using ON Semiconductor’s unique HG-CVR algorithm, eliminating the need for a sense resistor and providing accurate RSOC information even under unstable conditions such as changes in battery temperature, loading, aging, or self-discharge.
- No external sense resistor
- Low power consumption
- I2C interface
- LC709203FQH-01-GEVB and LC709203FXE-01-GEVB evaluation boards
CHARGING: NCP1850/1/2/4/5 Switching Battery Chargers
The NCP185x devices are fully programmable single cell Lithium-ion switching battery chargers optimized for charging from a USB compliant input supply and AC adaptor power source. The devices integrate a synchronous PWM controller, power MOSFETs, and the entire charge cycle monitoring including safety features under software supervision.
- 1.5A to 2.5A charging with automatic input current limit
- Dual path management
- Fully I2C programmable
NCS210/1/4 Current Sense Amplifiers
The NCS21x are voltage output current shunt monitors that can measure voltage across shunts at common mode voltages from -0.3V to 26V, independent of supply voltage. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10mV full-scale.
- Wide common mode input range -0.3V to 26V
- Zero drift precision
- ±1% gain error