Programmable Maximum Duty Cycle PWM Controller

The UCC3807 family of high speed, low power integrated circuits contains all of the control and drive circuitry required for off-line and dc-to-dc fixed frequency current mode switching power supplies with minimal external parts count.
These devices are similar to the UCC3800 family, but with the added feature of a user programmable maximum duty cycle. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3807 family also features internal full cycle soft start and internal leading edge blanking of the Current Sense input.
The UCC3807 family offers a variety of package options, temperature range options, and choice of critical voltage levels. The family has UVLO thresholds and hysteresis levels for off-line and battery powered systems. Thresholds are shown in the table below.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
UCC28070APW Texas Instruments Two-Phase Interleaved CCM PFC Controller with Extended Frequency Range (10kHz to 300kHz) 20-TSSOP -40 to 125
UCC2807D-2G4 Texas Instruments Programmable Maximum Duty Cycle PWM Controller 8-SOIC -40 to 85
UCC28070PWG4 Texas Instruments Two-Phase Interleaved CCM PFC Controller 20-TSSOP -40 to 125
UCC2807D-1 Texas Instruments Programmable Maximum Duty Cycle PWM Controller 8-SOIC -40 to 85
UCC2807N-2 Texas Instruments Programmable Maximum Duty Cycle PWM Controller 8-PDIP -40 to 85
UCC28070DW Texas Instruments Two-Phase Interleaved CCM PFC Controller 20-SOIC -40 to 85
UCC2807D-1G4 Texas Instruments Programmable Maximum Duty Cycle PWM Controller 8-SOIC -40 to 85
UCC2807N-2G4 Texas Instruments 1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDIP8, GREEN, PLASTIC, DIP-8
UCC28070PWRG4 Texas Instruments Two-Phase Interleaved CCM PFC Controller 20-TSSOP -40 to 125
UCC28070DWR Texas Instruments Two-Phase Interleaved CCM PFC Controller 20-SOIC -40 to 85
UCC2807-2 's PackagesUCC2807-2 's pdf datasheet
UCC2807D-2 SOIC
UCC2807D-2G4 SOIC
UCC2807DTR-2 SOIC
UCC2807DTR-2G4 SOIC
UCC2807N-2 PDIP
UCC2807N-2G4 PDIP




UCC2807-2 Pinout, Pinouts
UCC2807-2 pinout,Pin out
This is one package pinout of UCC2807-2,If you need more pinouts please download UCC2807-2's pdf datasheet.

UCC2807-2 Application circuits
UCC2807-2 circuits
This is one application circuit of UCC2807-2,If you need more circuits,please download UCC2807-2's pdf datasheet.


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UCC2807-2 Application Notes UCC2807-2 RoHS UCC2807-2 Circuits UCC2807-2 footprint