Radiation Hardened Dual, Inverting Power MOSFET
Drivers
HS-4423RH, HS-4423EH,
HS-4423BRH, HS-4423BEH
Features
• Electrically screened to DLA SMD # 5962-99511
• QML qualified per MIL-PRF-38535 requirements
• EH version acceptance tested to 50krad(Si) (LDR)
The Radiation Hardened HS-4423RH, HS-4423EH,
HS-4423BRH, HS-4423BEH are inverting, dual, monolithic
high-speed MOSFET drivers designed to convert TTL level
signals into high current outputs at voltages up to 18V.
• Radiation environment
- High dose rate (50-300rad(Si)/s). . . . . . . . . . . 300krad(Si)
- Latch-up immune
The inputs of these devices are TTL compatible and can be
directly driven by our HS-1825ARH PWM device or by our
ACS/ACTS and HCS/HCTS type logic devices. The fast rise
times and high current outputs allow very quick control of high
gate capacitance power MOSFETs in high frequency
applications.
- Low dose rate immune
• I
PEAK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >2A (typ)
• Matched rise and fall times (C = 4300pF) . . . . . . . . 75ns (max)
L
• Low voltage lock-out feature
The high current outputs minimize power losses in MOSFETs by
rapidly charging and discharging the gate capacitance. The
output stage incorporates a low voltage lock-out circuit that
puts the outputs into a three-state mode when the supply
voltage drops below 10V for the HS-4423RH, HS-4423EH and
7.5V for the HS-4423BRH and HS-4423BEH.
- HS-4423RH, HS-4423EH, . . . . . . . . . . . . . . . . . . . . . <10.0V
- HS-4423BRH, HS-4423BEH . . . . . . . . . . . . . . . . . . . . . <7.5V
• Wide supply voltage range . . . . . . . . . . . . . . . . . . . 12V to 18V
• Prop delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250ns (max)
• Consistent delay times with V changes
CC
Constructed with the Intersil dielectrically isolated Rad Hard
Silicon Gate (RSG) BiCMOS process, these devices are immune
to Single Event Latch-up and have been specifically designed
to provide highly reliable performance in harsh radiation
environments
• Low power consumption
- 40mW with inputs high
- 20mW with inputs low
• Low equivalent input capacitance . . . . . . . . . . . . . 3.2pF (typ)
• ESD protected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4000V
Applications
• Switching power supplies
• DC/DC converters
• Motor controllers
Pin Configuration
HS-4423RH, HS-4423EH, HS-4423BRH, HS-4423BEH
(FLATPACK CDFP4-F16)
TOP VIEW
NC
IN A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
OUT A
OUT A
NC
GND A
GND B
NC
V
V
CC
CC
OUT B
OUT B
NC
IN B
NC
NOTE: Pins 4 and 5, 10 and 11, 12 and 13, 14 and 15 are double-bonded to their
same electrical points on the die.
February 11, 2014
FN4564.5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
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