●The UCC27533DBVT is a 35Vmax VDD Single Channel Driver that can effectively drive MOSFET and IGBT power switches. Using a design that allows for a source of up to 2.5 and 5A sink through asymmetrical drive (split outputs), coupled with the ability to support a negative turn-off bias, rail-to-rail drive capability, extremely small propagation delay (17ns typical), the UCC27533 device is ideal solution for MOSFET and IGBT power switches. The UCC27533 can also support enable, dual input and inverting and non-inverting input functionality. The split outputs and strong asymmetrical drive boost the devices immunity against parasitic Miller turn-on effect and can help reduce ground debouncing. The logic behaviour of the driver is shown in the application diagram, timing diagram and input and output logic truth table. Internal circuitry on VDD pin provides an under-voltage lockout function that holds output low until VDD supply voltage is within operating range.
● Superior replacement to discrete transistor pair drive (providing easy interface with controller)
● TTL and CMOS compatible input logic threshold (independent of supply voltage)
● Split output options allow for tuning of turn-on and turnoff currents
● Inverting and non-inverting input configurations
● Enable with fixed TTL compatible threshold
● High 2.5A source and 2.5 or 5A sink peak drive currents at 18V VDD
● Input and enable pins capable of withstanding up to -5VDC below ground
● Output held low when inputs are floating or during VDD UVLO
● Fast propagation delays (17ns typical)
● Fast rise and fall times (15ns and 7ns typical with 1800pF load)
● Under-voltage lockout (UVLO)
● Used as a high-side or low-side driver (if designed with proper BIAS and signal isolation)
● Green product and no Sb/Br
●This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
