The document describes the UCC1570 family of pulse width modulators intended for applications in isolated switching supplies using primary side control. These devices utilize a Low Power BiCMOS process featuring 1mA run current and the ability to drive power MOSFET gates at frequencies above 500kHz.
| Run Current | 1mA |
|---|---|
| Operating Frequency | > 500kHz |
| Supply Voltage Range (UCC1570) | -55°C to +125°C |
| Oscillator Frequency (Typical) | 100kHz |
The devices feature a low startup and run current of 1mA.
These devices maintain the ability to drive a power MOSFET gate at frequencies above 500kHz.
The shutdown comparator has a threshold of 0.6V.