The UC1724 is a product from ON Semiconductor. It is an isolated drive transmitter used to drive isolated power MOSFET gates. It can output 500mA of drive current, operate over an 8-35V voltage range, and transmit logic signals through a pulse transformer. It also supports a frequency of up to 600kHz and has an undervoltage lockout function.
The Unitrode UC1724 family of Isolated Drive Transmitters provides a unique solution for driving isolated power MOSFET gates, particularly suited for high-side devices in H-bridge applications. These devices transmit drive logic and power to the isolated gate circuit using a low-cost pulse transformer.
| Supply Voltage | 8 to 35V |
|---|---|
| Output Drive Current | 500mA |
| Operating Frequency | Up to 600kHz |
| Under-Voltage Lockout Start-Up Threshold | 7.75V to 9.5V |
| Operating Temperature Range (UC1724) | -55°C to +125°C |
| Operating Temperature Range (UC3724) | 0°C to +70°C |
The devices will operate over a frequency range up to 600kHz.
The transmitters provide a 500mA output drive, capable of sourcing or sinking current.
Yes, the system is able to pass DC information across the transformer.