The UCC27524 device is a dual-channel, high-speed,
low-side, gate-driver device capable of effectively driving MOSFET and IGBT power
switches. The UCC27524 adds the ability to handle –5V directly at the input pins for
increased robustness. The UCC27524 is a dual non-inverting driver. Using a design
that inherently minimizes shoot-through current, the UCC27524 is capable of
delivering high-peak current pulses of up to 5A source and 5A sink into capacitive
loads along with rail-to-rail drive capability and extremely small propagation delay
typically 17ns. In addition, the drivers feature matched internal propagation delays
between the two channels which 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 a single 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.
For safety purpose, internal pull-up and pull-down
resistors on the input pins of the UCC27524 ensure that outputs are held LOW when
input pins are in floating condition. UCC27524 features 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 standard
operation.
UCC27524 family of devices are available in SOIC-8
(D), VSSOP-8 with exposed pad (DGN) packages and
3mm × 3mm WSON-8 with exposed pad (DSD) packages
package.
The UCC27524 device is a dual-channel, high-speed,
low-side, gate-driver device capable of effectively driving MOSFET and IGBT power
switches. The UCC27524 adds the ability to handle –5V directly at the input pins for
increased robustness. The UCC27524 is a dual non-inverting driver. Using a design
that inherently minimizes shoot-through current, the UCC27524 is capable of
delivering high-peak current pulses of up to 5A source and 5A sink into capacitive
loads along with rail-to-rail drive capability and extremely small propagation delay
typically 17ns. In addition, the drivers feature matched internal propagation delays
between the two channels which 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 a single 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.
For safety purpose, internal pull-up and pull-down
resistors on the input pins of the UCC27524 ensure that outputs are held LOW when
input pins are in floating condition. UCC27524 features 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 standard
operation.
UCC27524 family of devices are available in SOIC-8
(D), VSSOP-8 with exposed pad (DGN) packages and
3mm × 3mm WSON-8 with exposed pad (DSD) packages
package.