This document introduces Infineon's switch mode power supply products, including ICs and discretes, and their applications in various electronic devices.
The guide introduces switch‑mode power supplies (SMPS) as the most efficient way to convert energy for modern electronic devices. It discusses the growing power demand, the need for low standby consumption, and the benefits of high power density.
It then presents Infineon's product portfolio, including CoolMOS and thinQ! MOSFETs, OptiMOS®2 devices, silicon‑carbide Schottky diodes, and the CoolSET™ integrated controller. Application examples such as fan‑speed controllers, PFC controllers, and smart ballasts are described with key features and typical specifications.
| BSP125 MOSFET voltage rating | 600 V |
|---|---|
| BSP129 MOSFET type | N‑Channel Depletion |
| TDA21801 fan speed range | 750 rpm to 4000 rpm |
| TDA21801 protection features | Over‑temperature protection (OTP) |
The TDA21801 controller can be set to a minimum fan speed of 750 rpm up to a maximum of 4000 rpm.
It provides over‑temperature protection (OTP) and can work with both 2‑wire and 4‑wire fan configurations.