Texas Instruments High-Performance Analog PMIC - Battery Chargers UCC3956DWG4

The UCC3956DWG4 is a lithium-ion battery charger controller designed for high efficiency and precision in charging applications. It features a precision 4.1 V reference with 1% accuracy and supports both high-side and low-side switch-mode current sensing. The device operates with an average-current-mode control that manages charging from trickle to overcharge states, making it suitable for single-cell or multiple-cell battery packs. This charger controller includes internal state logic that provides four distinct charge states and allows for resistor-programmable charge currents. It also incorporates an undervoltage lockout (UVLO) feature to ensure that sufficient supply voltage is present before initiating output switching. The device is equipped with a differential current-sense amplifier, voltage and current error amplifiers, and a PWM latch, along with a 500 mA output driver. The UCC3956DWG4 is rated for input voltages up to 20 V and can handle continuous output currents of 120 mA, with peak currents reaching 600 mA. It operates within a temperature range of 0¬8C to 70¬8C and is available in a 20-SOIC package. This product is suitable for engineers looking for a reliable and efficient solution for lithium-ion battery charging applications.