The JW1221 is an LED driver SOT-23-6 RoHS manufactured by JoulWatt. It is designed to drive up to 6 LEDs using a single on/off switch control. The driver features an ON/OFF logic input, PWM dimming, and current-limiting protection to prevent any over-current or over-temperature situations. The driver has a wide input voltage range of 2.5V to 5.5V, making it compatible with most microcontrollers and other application level logic circuits. The driver also features a low quiescent current of 690uA, ensuring it won’t draw too much current from the battery or power source. The driver also includes several other features such as an integrated temperature monitoring circuit and short circuit protection.