DATASHEET
ISL74422BRH
Radiation Hardened, 9A, Non-Inverting Power MOSFET Driver
The radiation hardened ISL74422BRH is a non-inverting,
monolithic high-speed MOSFET driver designed to convert a
5V CMOS logic input signal into a high current output at
voltages up to 18V. Its fast rise/fall times and high current
output allow very quick control of even the largest power
MOSFETs in high frequency applications.
The input of the ISL74422BRH can be directly driven by our
IS-1825ASRH and IS-1845ASRH PWM devices. The 9A
high current output minimizes power losses in MOSFETs by
rapidly charging and discharging large gate capacitances. A
supply UVLO (Under Voltage Lock Out) circuit insures
predictable turn-on and turn-off of the driver.
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.
Specifications for Rad Hard QML devices are controlled
by the Defense Supply Center in Columbus (DSCC). The
SMD numbers listed here must be used when ordering.
Detailed Electrical Specifications for these devices are
contained in SMD 5962-03248. A “hot-link” is provided
on our website for downloading.
FN6057
Rev 0.00
October 2003
Features
• QML Qualified per MIL-PRF-38535 Requirements
• Electrically Screened to DSCC SMD # 5962-03248
• Radiation Environment
- Total Dose (Max) . . . . . . . . . . . . . . . . . . . . 300krad(SI)
- Latch-Up Immune
• I
PEAK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9A (Min)
• T
FALL
(C
L
= 10nF) . . . . . . . . . . . . . . . . . . . . . 135ns (Max)
• T
RISE
(C
L
= 10nF) . . . . . . . . . . . . . . . . . . . . . 135ns (Max)
• Prop Delay High-Low (C
L
= 10nF) . . . . . . . . . 175ns (Max)
• Prop Delay Low-High (C
L
= 10nF) . . . . . . . . . 175ns (Max)
• Rising UVLO Threshold . . . . . . . . . . . . . . . . . . 7.5V (Max)
• Falling UVLO Threshold. . . . . . . . . . . . . . . . . . .6.0V (Min)
• UVLO Hysteresis . . . . . . . . . . . . . . . . . . . . . . . .0.3V (Min)
• Wide Supply Voltage Range . . . . . . . . . . . . . . . 8V to 18V
• Low Stand-by Current Consumption
- Input Low . . . . . . . . . . . . . . . . . . . . . . . . . .2.1mA (Max)
- Input High . . . . . . . . . . . . . . . . . . . . . . . . . .2.7mA (Max)
Applications
• Switching Power Supplies
• DC/DC Converters
• Motor Controllers
Pinout
ISL74422BRHF (FLATPACK CDFP4-F16)
TOP VIEW
NC
NC
VS (IB)
VIN
GND (IB)
NC
NC
GND (OB)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VS (OB)
VS (OB)
NC
+VOUT
-VOUT
NC
NC
GND (OB)
Ordering Information
ORDERING NUMBER
5962F0324801VXC
5962F0324801QXC
INTERNAL
MKT. NUMBER
ISL74422BRHVF
ISL74422BRHQF
TEMP.
RANGE (
o
C)
-55 to 125
-55 to 125
-55 to 125
ISL74422BRHF/PROTO ISL74422BRHF/PROTO
NOTES:
1. Pin 3 provides the supply voltage for the control logic. It is not
internally connected to pins 15 and 16 for noise immunity
purposes, but it must be connected externally.
2. Pin 5 is the control logic return. It is not internally connected to
pins 8 and 9 for noise immunity purposes, but it must be
connected externally.
3. Pins 8 and 9 must be connected to GND.
4. Pins 12 and 13 must be externally connected.
5. Pins 15 and 16 must be connected to VS.
FN6057 Rev 0.00
October 2003
Page 1 of 3
ISL74422BRH
© Copyright Intersil Americas LLC 2003. All Rights Reserved.
All trademarks and registered trademarks are the property of their respective owners.
For additional products, see
www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at
www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are
current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its
subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see
www.intersil.com
FN6057 Rev 0.00
October 2003
Page 3 of 3
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