See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

D | 7

Temp:

Q (-40 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

UCC28633D


High Power Flyback Controller with Primary-Side Regulation and Peak Power Mode

TI Store Price:

 
 
Qty.Price
1 - 9 $ 1.94
10 - 24 $ 1.74
25 - 99 $ 1.61
100 - 249 $ 1.40
250 - 499 $ 1.30
500 - 749 $ 1.09
750 - 999 $ 0.89
1000 - 9999 $ 0.82

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Texas Instruments UCC28633D

The UCC2863x targets high-power, primary-side regulated flyback converters. The ability to operate in both CCM and DCM make the device suitable for applications with a wide power range. The peak power mode allows transient peak power delivery up to 200% of nominal rating, with only a 25% peak current increase, maximizing transformer utilization.

The transformer bias winding is used to sense output voltage for regulation, and for low-loss input voltage sensing. Advanced sampling techniques allow CCM operation, and deliver excellent output voltage regulation performance for opto-coupler-less designs at power levels of 100 W and above.

A high-voltage current source enables fast and efficient start-up. Advanced light-load modes are deployed to reduce both controller and system power consumption at no load and light load. These modes enable potential system designs to meet 30-mW no-load power for power designs up to 30 W nominal, 60 W peak.

The device has been designed for ease-of-use and incorporates many features to enable a wide range of designs. Extensive protection features are included to simplify system design.

See the Device Comparison Table for details.

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