| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 14 Pin |
| Case/Package | SOIC |
| Rise Time | 20 ns |
| Switching Frequency | 500 kHz |
| Fall Time | 20 ns |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | 0 ℃ |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Obsolete |
| Packaging | Tube, Rail |
DESCRIPTION
●The UCC1570 family of pulse width modulators is intended for application in isolated switching supplies using primary side control and a voltage mode feedback loop. Made with a BiCMOS process, these devices feature low startup current for efficient off-line starting with a bootstrapped low volt age supply. Operating current is also very low; yet these devices maintain the ability to drive a power MOSFET gate at frequencies above 500kHz.
●FEATURES
●•Low Power BiCMOS Process
●•85µA Start-up Current
●•1mA Run Current
●•1A Peak Gate Drive Output
●•Voltage Feed Forward
●•Programmable Duty Cycle Clamp
●•Optocoupler Interface
●•500kHz Operation
●•Soft Start
●•Fault Counting Shutdown
●•Fault Latch Off or Automatic Restart
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