Current-mode PWM controller for boost, flyback, forward converters
The TL2845BD-8: Current-mode PWM controller for step-up and step-up/step-down topologies including boost, flyback, and forward converters. Drives a single external transistor, switching up to 500 kHz.
Package and mounting
8-SOIC (3.90 mm width) surface-mount package, shipped in Tube. Narrow SOIC footprint standard for low-to-medium power controllers; no heatsink pad underneath.
Lifecycle and compliance
Marked as Active on the lifecycle record — no end-of-life notice, no last-time-buy window. ROHS3 compliant. For new designs or ongoing production, this part is a current-catalog choice. If you need a higher duty cycle or synchronous rectification, the UCC2806DWTR (50% duty, dual output, synchronous rectifier) is a functional alternative in the same 8-SOIC footprint, though it carries a different pinout and control architecture.
