General Description

The ASIC’ s purpose is to drive one OMNIFET n-channel power FET device. (OMNIFET is a trademark of SGS-THOMSON). The OMNIFET’ s integrated protection circuits (current limitation, over temperature protection, ...) are supplied via the OMNIFET’ s gate input. Thus in the OMNIFET’ s on-state, a DC gate current of 0.5mA is required. In a failure case (e.g. excessive temperature) an internal resistor of about 100W is connected between the OMNIFET’ s gate and source. This state is used to detect errors by the controlling ASIC.

Key Features

· Multipurpose control ASIC for OMNIFET (SGS Thompson intelligent power FET family)

· Contains one channel on-chip

· Applicable in low or high side switch circuits

· Supply voltage range 10V – 60V

· Up to +/- 3V potential difference between system’ s digital ground and power ground possible.

· Current controlled interface

· Provides load circuit surveillance and fault back signal

· Typical rise time shorter then 2.4us

· Typical fall time shorter then 3.8us

· 8 pin SOIC Package