UCC3806D Datasheet

Low-Power, Dual-Output,Current-Mode Pwm Controller


The UCC3806 family of BiCMOS PWM controllers offers exceptionally improved performance with a familiararchitecture.Withthesameblockdiagram and pinout of the popular UC3846 series, the UCC3806 line features increased switching frequency capability while greatly reducing the bias current used within the device. With a typical startup currentof50μAand awell definedvoltage threshold for turn-on, these devices are favored for applications ranging from off-line power supplies to battery operated portable equipment. Dual high-current, MOSFET driving outputs and a fast current sense loop further enhance device versatility. UCC3806D Features • BiCMOS Version of UC3846 Family• 1.4-mA Maximum Operating Current• 100-μA Maximum Startup Current• ±0.5-A Peak Output Current• 125-ns Circuit Delay• Easier Parallelability• Improved Benefits of Current Mode Control


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