480W, 97% Efficiency Ultra-Compact (480W/in3) Bidirectional DC/DC Reference Design

The TIDA-00705 is an ultra-compact (1”x1”x1”) high-efficiency bidirectional DC to DC power converter capable of delivering 480W for low energy storage (LES) and battery backup power applications. Specifically, it is designed for server battery backup Unit (BBU) embedded server PSU. The reference design is based on a two-phase spaced half-bridge power stage controlled using the UCD3138 digital power stage controller. The design has built-in DC bus overcurrent, overvoltage protection and battery overcurrent, overvoltage protection. Voltage protection and phase current balancing to dissipate heat.

characteristic

• ● Backup power efficiency is as high as 97%, optimizing thermal management and extending battery backup time
• ● Ultra-compact unit features built-in heatsink (1”x1”x1”) and efficient thermal management, allowing it to be easily retrofitted into existing server PSUs
• ● Provides high power output 40A/12V as a backup power supply and can charge the battery at 6A during normal operation.
• ● For lithium batteries and lithium polymer batteries, compatible with the built-in battery charging CC-CV algorithm
• ● Provides more than 300W under very little airflow conditions at 200LFM, and provides a continuous power output of 190W under no airflow conditions
• ● The UCD3138A digital power controller solution enables programmability and configurability of different voltages and currents.