This driver circuit reference design is an ideal choice for powering a small number (about 2 to 6) LEDs. Advantages include a small PCB form factor of 5.7cm x 3.1mm, wide input and output voltage ...

A simple and convenient way to interface 2 relays for switching application in your project. This relay driver boosts the input impedance with a regular BC547 NPN transistor (or equivalent). Very ...