UCC3808D-2

DC DC Switching Controllers Overview

The UCC3808D-2 is a low-power current-mode push-pull PWM controller manufactured by Texas Instruments. It operates within a temperature range of 0°C to +70°C and supports switching frequencies up to 1 MHz. The device features dual output drive stages in a push-pull configuration, suitable for full bridge, half bridge, and push-pull topologies. Key electrical parameters include a maximum duty cycle of 50%, an output current capability of 1 A, and a typical starting current of 130 μA with a run current of 1 mA.

DC DC Switching Controllers Feature Summary

• Dual-output drive stages configured in push-pull topology
• Current-sense discharge transistor integrated to improve dynamic response
• Low power consumption with minimal starting and running currents

DC DC Switching Controllers Applications

• Flyback converter designs
• Half-bridge power supplies
• Full-bridge power supplies
• Push-pull converter architectures

DC DC Switching Controllers Procurement Notes

Verify the specific package type and tape-and-reel versus tube packaging requirements against the official datasheet before ordering. Confirm that the component status remains active or note any end-of-life notifications from Texas Instruments. Ensure compatibility with RoHS standards and check for any recent qualification updates regarding material sets or wire bonding options.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring low quiescent current and high-frequency operation up to 1 MHz. It is appropriate for isolated power supplies using push-pull, half-bridge, or full-bridge topologies. Consider the 50% maximum duty cycle limitation when designing transformer reset circuits. Ensure the load current requirements do not exceed the 1 A output drive capability.

DC DC Switching Controllers Part Context

The UCC3808D-2 belongs to the UCC3808 series of low-power PWM controllers. It is designed as a cost-effective solution for medium-power isolated converters. The device integrates essential control functions including frequency compensation and current sensing, reducing external component count compared to discrete solutions.

DC DC Switching Controllers Replacement Considerations

Check for direct pin-compatible alternatives within the UCC3808 family, such as the UCC3808ADTR-2G4, ensuring functional equivalence in drive strength and control logic. Verify thermal performance and package dimensions if substituting with other SOIC-8 variants.