Features
• Wide operating voltage range: 4.65 V to 18 V
• Parallel driving capability up to 9 A
• Inverting configuration
• Input 5 V logic level compatibility
• 110 ns typical propagation delay
• Matched propagation delays between the two channels (5 ns max.)
• 20 mV maximum low level output voltage
• 30 ns rise and fall times
• +/-5 V common mode bouncing between signal and power grounds
• TID:
– 100 krad HDR
– 100 krad LDR
• QML-V qualification
• Hermetic package

Description
The RHRPM4423 is a flexible, high-frequency dual low-side driver specifically
designed to work with high capacitive MOSFETs and IGBTs in an environment with
high levels of radiation such as aerospace. The RHRPM4423 outputs can sink and
source 4.5 A of peak current independently. If two PWM outputs are in parallel, a
higher driving current (up to 9 A peak) can be achieved. The RHRPM4423 works with
CMOS/TTL compatible PWM signal so it can be driven by an external PWM
controller, such as the ST1843 or the ST1845. The FLAT-16 version conforms to an
industry standard pinout and can dissipate up to 550 mW per channel, while FLAT-10
version optimizes the PCB real estate. Since both of packages are hermetic, this
device is suitable for any kind of harsh-environment.

Applications
• Switch mode power supply
• DC-DC converters
• Motor controllers
• Line drivers