LINEAR TECHNOLOGY CORPORATION
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MILPITAS, CA - December 9, 2014 - Linear Technology Corporation announces the availability of a MIL-STD-1275D compliant surge stopper solution, demonstrated on evaluation board DC2150A. MIL-STD-1275D is a standard created by the United States Department of Defense, specifying the steady state and transient voltage characteristics of a military ground vehicle's 28V DC power supply. When faced with the stringent surge, spike and ripple waveforms specified in MIL-STD-
1275D, DC2150A limits the output voltage to a safe 44V. For most applications, satisfying the standard is as simple as placing the DC2150A circuit in front of a 44V tolerant device. DC2150A employs surge stopper ICs LTC4366 and LT4363, controlling series N-channel MOSFETs, reducing the solution size and cost compared to traditional shunt circuits utilizing bulky capacitors, fuses, inductors and transient voltage suppressors.
DC2150A is designed to withstand input transients up to ±250V and to provide a minimum of 4A current to the load in all conditions except the ±7V ripple condition when the available current is reduced to 2.8A. The N-channel MOSFETs are protected against output overloads by current limiting. Sustained overvoltage or overcurrent conditions turn off the circuit after a timer delay; the circuit turns on automatically after a cooldown cycle. Thermal protection circuitry turns off the LT4363 controlled MOSFET when its temperature exceeds 105°C.
DC2150A has four assembly options (DC2150A-A through DC2150A-D), depending on maximum load current and the ability to ride through the 500ms long 100V peak surge. Bill of materials (BOM) costs are reduced on the board options which eliminate unneeded protection features. Only the full- featured option, DC2150A-C, is available and priced at $150.00 each. The solution is described in detail in Linear Technology Journal of Analog Innovation, Volume 24, Number 1, "High Voltage Surge Stoppers Ease MIL-STD-1275D Compliance by Replacing Bulky Passive Components." For
a certification report and more information, visit www.linear.com/demo/DC2150A.
MIL-STD-1275D Compliant
Certified by Third Party Test
Laboratory
Voltage Ratings:
8V to 40V Input Operating Range Rides Through 100V Peak, 500ms Long Input Surge Survives ±250V Input Spikes
44V Output Clamp Voltage
Output Current Capability:
Up to 2.8A During ±7V Input
Ripple
Up to 4A During All Other
Conditions
105°C Thermal Protection
Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for over three decades. The Company's products provide an essential bridge between our analog world and the digital electronics in communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, and military and aerospace systems. Linear Technology produces power management, data conversion, signal conditioning, RF and interface ICs, µModule® subsystems, and wireless sensor network products. For more information, visit www.linear.com.
, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of
Linear Technology Corp. All other trademarks are the property of their respective owners.
John Hamburger
Tel: (408) 432-1900 ext. 2419 jhamburger@linear.com
Fanny Lau
Tel: 852-2428-0303 flau@linear.com
Yoshikazu Funasaki Tel: 81-3-5226-7291 yfunasaki@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233 ddickinson@linear.com
Desiree Park
Tel: +82-2-565-6625 desiree@ezwire.com
Alan Timmins
Tel: +44-1252-629937 alan@ezwire.com
Angela Ao
Tel: (8610)6522 8081 angela.ao@ebacomms.com
Alice Wang
Tel: +886-2-28974705 alice@ezwire.com
Simona Labianca
Tel: +39 340 0571697 simona@ezwire.com
Takashi Matsuda
Tel: +81-3-3255-8411 linear@chugai-ad.co.jp
Ralf Stegmann
Tel: +49 (0) 71319234-11 ralf@ezwire.com
Clotilde Zeller
Tel: +33 1 4614 87 09 clotilde@ezwire.com
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