Texas Instruments' ISO5500 is an isolated gate driver for IGBTs and MOSFETs with power ratings of up to IC = 150 A and VCE = 1200 V. Input TTL logic and output power stage are separated by a capacitive, silicon dioxide (SiO2) isolation barrier. When used in conjunction with isolated power supplies, the device blocks high voltage, isolates ground, and prevents noise currents from entering the local ground and interfering with or damaging sensitive circuitry.