The TC429 is a high-speed, single output, CMOS-level
translator and driver. Designed specifically to drive
highly capacitive power MOSFET gates, the TC429
features a 2.5Ω output impedance and 6A peak output
current drive.
A 2500 pF capacitive load will be driven to 18V in
25 nsec. The rapid switching times with large
capacitive loads minimize MOSFET switching power
losses.
A TTL/CMOS input logic level is translated into an
output voltage swing that equals the supply voltage and
will swing to within 25 mV of ground or VDD. Input voltage
swing may equal the supply voltage. Logic input
current is under 10 μA, making direct interface to
CMOS/bipolar switch-mode power supply controllers
easy. Input “speed-up” capacitors are not required.
The CMOS design minimizes quiescent power supply
current. With a logic ‘1’ input, power supply current is
5 mA maximum and decreases to 0.5 mA for logic ‘0’
inputs.
For dual output MOSFET drivers, see the TC426/
TC427/TC428 (DS21415), TC4426/TC4427/TC4428
(DS21422) and TC4426A/TC4427A/TC4428A
(DS21423) data sheets.
For non-inverting applications, or applications requiring
latch-up protection, see the TC4420/TC4429
(DS21419) data sheet.