The UC1724 UC2724 UC3724 is a driver for driving isolated power MOSFET gates from Unigroup. The driver uses a pulse transformer and has features such as 500mA output drive, 8 to 35V operating voltage, instantaneous response, programmable operating frequency, undervoltage lockout, and the ability to pass DC information across transformers.
The UC1724 family provides a unique solution for driving isolated power MOSFET gates, particularly suited for high-side devices in H-bridge configurations. These devices transmit logic and drive power to an isolated gate circuit using a low-cost pulse transformer.
Key features include 500mA output drive capability (source or sink), programmable operating frequency up to 600kHz, and the ability to pass DC information across the isolation barrier via duty-cycle modulation. The devices operate over an 8 to 35V supply range.
| Supply Voltage Range | 8 to 35V |
|---|---|
| Output Drive Current | 500mA |
| Maximum Operating Frequency | 600kHz |
| Under-Voltage Lockout Start-Up Threshold | 7.75V |
| Operating Temperature Range (UC1724) | -55°C to +125°C |
| Package Types | 8 pin plastic or ceramic dual-inline packages, as well as 16 pin SOIC package |
They are particularly suited to drive the high-side devices in a H-bridge.
Yes, they utilize a duty-cycle modulation technique that allows them to pass steady-state or DC conditions.
The devices can operate at frequencies up to 600kHz.