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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fucc27444-q1″>View Datasheet
Texas Instruments UCC27442-Q1 Dual-Channel High-Speed Low-Side Gate Driver can drive MOSFET and GaN power switches effectively. UCC27442-Q1 has a typical peak drive strength of 4A, which reduces the rise and fall times of the power switches, lowering switching losses and increasing efficiency. The UCC27442-Q1 fast propagation delay (18ns typical) yields better power stage efficiency by improving the deadtime optimization, pulse width utilization, control loop response, and transient performance of the system.
The Texas Instruments UCC27442-Q1 can handle –5V on its INx inputs, which improves robustness in systems with moderate ground bouncing. The inputs can be connected to most controller outputs for maximum control flexibility. An independent enable signal allows the power stage to be controlled independently of the main control logic. In the event of a system fault, the gate driver can quickly shut off by pulling the enable low. Many high-frequency switching power supplies exhibit noise at the gate of the power device, which can get injected into the output pin on the gate driver and cause the driver to malfunction. The device’s transient reverse current and reverse voltage capability allow it to tolerate noise on the gate of the power device or pulse transformer and avoid driver malfunction.
