Ultra-small 1W, 12V-36V isolated power supply reference design for analog programmable logic controller modules

Analog input and output modules are standard components of programmable logic controllers (PLCs) or distributed control systems (DCS). In these modules, the increasing number of channels per module and the thinner and thinner modules present design challenges for isolated power supplies. All designers facing these challenges will benefit from the TIDA-00237 as its total design size is less than 2.54x2.54mm and its height is less than 5mm. It uses a flyback approach, which means no optocoupler feedback is required, and has a wide input voltage range of 12V-36V. This design provides +/-15V and 5V isolated low-noise outputs, making it ideal for driving data converters or analog front ends.

characteristic

• ●Wide input voltage range: 12V to 36V (24VNOM)
• ● 3 isolated outputs: 15VISO@30mA ultra-low noise, -15 VISO@30mA ultra-low noise, 5VISO@40mA
• ● ±2.5% output voltage accuracy
• ● Ultra-thin size less than 5mm
• ● Comply with IEC 61131-2 standard