UC1727 is a driver IC produced by Infineon. It can drive isolated IGBTs. It has high and low voltage gate drive function, can receive power and signal from single isolation transformer, and generate split rail for 4A peak bipolar gate drive.
The UC1727 and its companion chips, the UC2727 and UC3727, are isolated high-side IGBT drivers designed to drive an isolated IGBT transistor from a TTL input signal. These devices utilize a unique modulation scheme to transmit power and signal across an isolation boundary with a minimum of external components, generating a split rail for 4A peak bipolar gate drive.
| Output Current (Pulse) | 4A |
|---|---|
| Supply Voltage (VCC - VEE) | 40V |
| Output Driver Saturation to Vcc | 2.5V |
| Thermal Shutdown Threshold | 175 C |
| Total Standby Current | 30 mA |
High level gate drive signals are typically 16V.
The chips include under voltage lockout and desaturation detection.
It is an analog programming pin for intermediate drive level to be used at turn on or in response to a desaturation event.