The LP5018RSMR is a high-performance, low-power, single-cell lithium-ion (Li-ion) battery charger from Texas Instruments (TI). It is designed to provide efficient and reliable charging solutions for a wide range of applications, including portable devices, wearable electronics, and IoT devices.
Description:
The LP5018RSMR is a highly integrated, step-down battery charger with a built-in power MOSFET and a synchronous rectifier. It features a constant current/constant voltage (CC/CV) charging profile, which ensures safe and efficient charging of Li-ion batteries. The device is available in a compact 16-pin, 3mm x 3mm WQFN package.
Key Features:
- Input voltage range: 3.5V to 5.5V
- Programmable charge current up to 1A
- Charge voltage adjustable from 3.7V to 4.4V
- Integrated power MOSFET and synchronous rectifier for high efficiency
- USB power delivery (PD) and charging port (BC1.2) compliance
- Thermal regulation and thermal shutdown for safety
- Battery temperature monitoring with NTC thermistor input
- Charging status indicators (charge done, charging, and fault)
- Low quiescent current (< 2µA in standby mode)
- Programmable charging timer
- Protection features: over-voltage protection (OVP), under-voltage protection (UVP), over-current protection (OCP), and short-circuit protection (SCP)
Applications:
- Portable devices: smartphones, tablets, and laptops
- Wearable electronics: smartwatches, fitness trackers, and AR/VR headsets
- IoT devices: smart home devices, security cameras, and wireless sensors
- Medical devices: portable medical equipment and wearable health monitors
- Consumer electronics: portable speakers, e-readers, and gaming controllers
- Industrial applications: portable data loggers, handheld scanners, and portable test equipment
The LP5018RSMR offers a flexible, efficient, and safe charging solution for single-cell Li-ion batteries, making it suitable for a wide range of applications where power efficiency and compact form factor are crucial.