LTC4380 Low Quiescent Current Surge Stoppers

Linear Technology offers its LTC4380 surge stoppers for automotive, avionic, and industrial surge protection applications

Image of Linear Technology's LTC4380 Low Quiescent Current Surge StoppersLinear Technology's LTC4380 low quiescent current surge stoppers protect loads from high voltage transients. Overvoltage protection is provided by clamping the gate voltage of an external N-channel MOSFET to limit the output voltage to a safe value during overvoltage events such as load dump in automobiles. Fixed gate clamp voltages are selectable for 12 V and 24 V / 28 V systems. For systems of any voltage up to 72 V, use the adjustable gate clamp versions. Overcurrent protection is also provided.

An internal multiplier generates a TMR pin current proportional to VDS and ID so that operating time in both overcurrent and overvoltage conditions is limited in accordance with MOSFET stress.

The GATE pin can drive back-to-back MOSFETs for reverse input protection, eliminating the voltage drop and dissipation of a Schottky diode solution. A low 8 μA operating current permits use in always-on and battery-powered applications. An accurate ON pin comparator monitors the input supply for undervoltage (UV) conditions and also serves as a shutdown input, reducing the quiescent current to 6 μA.

Features
  • Low quiescent current: 8 μA operating, 6 μA shutdown
  • Withstands surge voltage up to the MOSFET limit
  • Wide operating voltage range: 4 V to 72 V
  • Overcurrent protection
  • Selectable internal 31.5 V / 50 V or adjustable gate clamp voltage
  • Reverse input protection to -60 V
  • Adjustable turn-on threshold
  • Adjustable fault timer with MOSFET stress acceleration
  • Controls N-channel MOSFET
  • Latchoff and retry options
  • Low retry duty cycle during faults
  • 10-pin DFN (3 mm x 3 mm) and MSOP packages
Applications
  • Automotive / avionic / industrial surge protection
  • Hot swap / live insertion
  • High side switch for battery powered systems
  • Intrinsic safety applications

Video: LTC4380 Low Iq Surge Stopper for High Reliability Current Sensitive Applications


Image of Linear Technology's LTC4380 Low Quiescent Current Surge Stoppers

Image of Linear Technology's LTC4380 Low Quiescent Current Surge Stoppers

LTC4380 Low Quiescent Current Surge Stoppers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380CDD-1#PBFIC LOW CUR SURGE STOPPER 10DFN491 - Immediate
1573 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380CDD-2#PBFIC LOW CUR SURGE STOPPER 10DFN9 - ImmediateView Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380CDD-3#PBFIC LOW CUR SURGE STOPPER 10DFN68 - ImmediateView Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380CDD-4#PBFIC LOW CUR SURGE STOPPER 10DFN4 - Immediate
3025 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10MSOPLTC4380CMS-1#PBFIC LOW CUR SURGE STOPPER 10MSOP502 - ImmediateView Details
IC LOW CUR SURGE STOPPER 10MSOPLTC4380CMS-2#PBFIC LOW CUR SURGE STOPPER 10MSOP35 - ImmediateView Details
IC LOW CUR SURGE STOPPER 10MSOPLTC4380CMS-3#PBFIC LOW CUR SURGE STOPPER 10MSOP38 - ImmediateView Details
IC LOW CUR SURGE STOPPER 10MSOPLTC4380CMS-4#PBFIC LOW CUR SURGE STOPPER 10MSOP17 - ImmediateView Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380HDD-1#PBFIC LOW CUR SURGE STOPPER 10DFN101 - Immediate
1936 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380HDD-2#PBFIC LOW CUR SURGE STOPPER 10DFN0View Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380HDD-3#PBFIC LOW CUR SURGE STOPPER 10DFN43 - Immediate
1089 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380HDD-4#PBFIC LOW CUR SURGE STOPPER 10DFN0View Details
IC LOW CUR SURGE STOPPER 10MSOPLTC4380HMS-1#PBFIC LOW CUR SURGE STOPPER 10MSOP192 - Immediate
1350 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10MSOPLTC4380HMS-2#PBFIC LOW CUR SURGE STOPPER 10MSOP537 - Immediate
600 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10MSOPLTC4380HMS-3#PBFIC LOW CUR SURGE STOPPER 10MSOP320 - ImmediateView Details
IC LOW CUR SURGE STOPPER 10MSOPLTC4380HMS-4#PBFIC LOW CUR SURGE STOPPER 10MSOP0View Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380IDD-1#PBFIC LOW CUR SURGE STOPPER 10DFN222 - Immediate
1936 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380IDD-2#PBFIC LOW CUR SURGE STOPPER 10DFN784 - Immediate
847 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380IDD-3#PBFIC LOW CUR SURGE STOPPER 10DFN7 - Immediate
3630 - Factory Stock
View Details
IC LOW CUR SURGE STOPPER 10DFNLTC4380IDD-4#PBFIC LOW CUR SURGE STOPPER 10DFN484 - ImmediateView Details
Published: 2016-04-26