Datasheet Summary
Micropower Voltage Mode PWM
Features
- Low 85µA Startup Current
BLOCK DIAGRAM
- Low 300µA Operating Current
- Automatically Disabled Startup Preregulator
- Programmable Minimum Duty Cycle with Cycle Skipping
- Programmable Maximum Duty Cycle
- Output Current 1A Peak Source and Sink
- Programmable Soft Start
- Programmable Oscillator Frequency
- External Oscillator Synchronization Capability application INFO available
UCC1581 UCC2581 UCC3581
Note: Pin Connection shown for 14-pin Package
UDG-95011-1
DESCRIPTION
The UCC3581 voltage mode pulse width modulator is designed to control low power isolated DC
- DC converters in applications such as Subscriber Line Power (ISDN I.430)....