The UCC2752x family of devices are dual-channel, high-speed, low-side gate-driver devices
capable of effectively driving MOSFET and IGBT power switches. Using a design that inherently
minimizes shoot-through current, UCC2752x can deliver high-peak current pulses of up to 5-A source
and 5-A sink into capacitive loads along with rail-to-rail drive capability and extremely small
propagation delay (typically 13 ns). In addition, the drivers feature matched internal propagation
delays between the two channels. These delays are very well suited for applications requiring
dual-gate drives with critical timing, such as synchronous rectifiers. This also enables connecting
two channels in parallel to effectively increase current-drive capability or driving two switches
in parallel with one input signal. The input pin thresholds are based on TTL and CMOS compatible
low-voltage logic, which is fixed and independent of the VDD supply voltage. Wide hysteresis
between the high and low thresholds offers excellent noise immunity.
The UCC2752x family provide the combination of three standard logic options dual
inverting, dual noninverting, one inverting and one noninverting driver. UCC27526 features a dual
input design which offers flexibility of both inverting (IN pin) and non-inverting (IN+ pin)
configuration for each channel. Either IN+ or IN pin controls the state of the driver output. The
unused input pin is used for enable and disable functions. For safety purpose, internal pullup and
pulldown resistors on the input pins of all the devices in UCC2752x family ensure that outputs are
held LOW when input pins are in floating condition. The UCC27523, UCC27524, and UCC27525 devices
feature Enable pins (ENA and ENB) to have better control of the operation of the driver
applications. The pins are internally pulled up to VDD for active-high logic and are left open for
UCC2752x family of devices are available in SOIC-8 (D), MSOP-8 with exposed pad (DGN) and
3-mm × 3-mm WSON-8 with exposed pad (DSD) packages. UCC27524 is also offered in PDIP-8 (P) package.
UCC27526 is only offered in 3-mm × 3-mm WSON (DSD) package.
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