The UCC38083/4/5/6 is a family of BiCMOS pulse width modulation (PWM) controllers for dc-to-dc or off-line fixed-frequency current-mode switching power supplies. The dual output stages are configured for the push-pull topology. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 1.
D Programmable Slope Compensation D Internal Soft-Start on the UCC38083/4 D Cycle-by-Cycle Current Limiting D Low Start-Up Current of 120 µA and 1.5 mA Typical Run Current D Single External Component Oscillator Programmable from 50 kHz to 1 MHz D High-Current Totem-Pole Dual Output Stage Drives Push-Pull Configuration with 1-A Sink and 0.5-A Source Capability D Current Sense Discharge Transistor to Improve Dynamic Response D Internally Trimmed Bandgap Reference D Undervoltage Lockout with Hysteresis BASIC APPLICATION V IN VDD UCC3808x CTRL OUTA RT OUTB ISET CS RT R SET GND POWER TRANS.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | UCC28086 |
Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers | |
2 | UCC2808-1 |
Unitrode |
Low Power Current Mode Push-Pull PWM | |
3 | UCC2808-1 |
Texas Instruments |
Low Power Current Mode Push-Pull PWM | |
4 | UCC2808-2 |
Unitrode |
Low Power Current Mode Push-Pull PWM | |
5 | UCC2808-2 |
Texas Instruments |
Low Power Current Mode Push-Pull PWM | |
6 | UCC28083 |
Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers | |
7 | UCC28083P |
Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers | |
8 | UCC28084 |
Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers | |
9 | UCC28084P |
Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers | |
10 | UCC28085 |
Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers | |
11 | UCC28085P |
Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers | |
12 | UCC28089 |
Texas Instruments |
PRIMARY-SIDE PUSH-PULL OSCILLATOR |