Low-Power Current-Mode Push-Pull PWM

The UCC3808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width Modulators The UCC3808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count.
The UCC3808A dual output drive stages are arranged in a push-pull configuration. Both outputs Switch at half the Oscillator frequency using a toggle Flip-Flop The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the Timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.
The UCC3808A family offers a variety of package options, temperature range options, and choice of undervoltage lockout levels. The family has UVLO thresholds and hysteresis options for off-line and battery powered systems. Thresholds are shown in the table below.
The UCC3808A is an enhanced version of the UCC3808 family. The significant difference is that the A versions feature an internal discharge Transistor from the CS pin to ground, which is activated each Clock cycle during the Oscillator dead time. The feature discharges any Filter capacitance on the CS pin during each cycle and helps minimize Filter capacitor values and Current Sense delay.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
UCC3808APW-1 Texas Instruments 1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO8, GREEN, TSSOP-8
UCC3808APW-2 Texas Instruments Low-Power Current-Mode Push-Pull PWM 8-TSSOP 0 to 70
UCC3808APWTR-1G4 Texas Instruments 1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO8, GREEN, TSSOP-8
UCC3808APWTR-2G4 Texas Instruments Low-Power Current-Mode Push-Pull PWM 8-TSSOP 0 to 70
UCC3808AD-1 Texas Instruments Low-Power Current-Mode Push-Pull PWM 8-SOIC 0 to 70
UCC3808AD-2 Texas Instruments Low-Power Current-Mode Push-Pull PWM 8-SOIC 0 to 70
UCC3808AN-1 Texas Instruments Low-Power Current-Mode Push-Pull PWM 8-PDIP 0 to 70
UCC3808AN-2 Texas Instruments Low-Power Current-Mode Push-Pull PWM 8-PDIP 0 to 70
UCC3808AN-1G4 Texas Instruments Low-Power Current-Mode Push-Pull PWM 8-PDIP 0 to 70
UCC3808AN-2G4 Texas Instruments 1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDIP8, GREEN, PLASTIC, DIP-8
UCC3808A-1 's PackagesUCC3808A-1 's pdf datasheet
UCC3808AD-1 SOIC
UCC3808AD-1G4 SOIC
UCC3808ADTR-1 SOIC
UCC3808ADTR-1G4 SOIC
UCC3808AN-1 PDIP
UCC3808AN-1G4 PDIP
UCC3808APW-1 TSSOP
UCC3808APW-1G4 TSSOP
UCC3808APWTR-1 TSSOP
UCC3808APWTR-1G4 TSSOP




UCC3808A-1 Pinout, Pinouts
UCC3808A-1 pinout,Pin out
This is one package pinout of UCC3808A-1,If you need more pinouts please download UCC3808A-1's pdf datasheet.

UCC3808A-1 Application circuits
UCC3808A-1 circuits
This is one application circuit of UCC3808A-1,If you need more circuits,please download UCC3808A-1's pdf datasheet.


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UCC3808A-1 Application Notes UCC3808A-1 RoHS UCC3808A-1 Circuits UCC3808A-1 footprint