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 Quantity
LTC4380CDD-1#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380CDD-1#PBFIC LOW CUR SURGE STOPPER 10DFN742 - Immediate
LTC4380CDD-1#PBF product page link
LTC4380CMS-1#PBF datasheet linkIC LOW CUR SURGE STOPPER 10MSOPLTC4380CMS-1#PBFIC LOW CUR SURGE STOPPER 10MSOP507 - Immediate
LTC4380CMS-1#PBF product page link
LTC4380IDD-2#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380IDD-2#PBFIC LOW CUR SURGE STOPPER 10DFN264 - Immediate
LTC4380IDD-2#PBF product page link
LTC4380IMS-1#PBF datasheet linkIC LOW CUR SURGE STOPPER 10MSOPLTC4380IMS-1#PBFIC LOW CUR SURGE STOPPER 10MSOP256 - Immediate
LTC4380IMS-1#PBF product page link
LTC4380IDD-3#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380IDD-3#PBFIC LOW CUR SURGE STOPPER 10DFN115 - Immediate
LTC4380IDD-3#PBF product page link
LTC4380HDD-2#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380HDD-2#PBFIC LOW CUR SURGE STOPPER 10DFN206 - Immediate
LTC4380HDD-2#PBF product page link
LTC4380HMS-4#PBF datasheet linkIC LOW CUR SURGE STOPPER 10MSOPLTC4380HMS-4#PBFIC LOW CUR SURGE STOPPER 10MSOP130 - Immediate
LTC4380HMS-4#PBF product page link
LTC4380HMS-2#PBF datasheet linkIC LOW CUR SURGE STOPPER 10MSOPLTC4380HMS-2#PBFIC LOW CUR SURGE STOPPER 10MSOP127 - Immediate
LTC4380HMS-2#PBF product page link
LTC4380HDD-1#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380HDD-1#PBFIC LOW CUR SURGE STOPPER 10DFN121 - Immediate
LTC4380HDD-1#PBF product page link
LTC4380HDD-3#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380HDD-3#PBFIC LOW CUR SURGE STOPPER 10DFN111 - Immediate
LTC4380HDD-3#PBF product page link
LTC4380CDD-4#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380CDD-4#PBFIC LOW CUR SURGE STOPPER 10DFN81 - Immediate
LTC4380CDD-4#PBF product page link
LTC4380CDD-3#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380CDD-3#PBFIC LOW CUR SURGE STOPPER 10DFN71 - Immediate
LTC4380CDD-3#PBF product page link
LTC4380CDD-2#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380CDD-2#PBFIC LOW CUR SURGE STOPPER 10DFN63 - Immediate
LTC4380CDD-2#PBF product page link
LTC4380CMS-3#PBF datasheet linkIC LOW CUR SURGE STOPPER 10MSOPLTC4380CMS-3#PBFIC LOW CUR SURGE STOPPER 10MSOP45 - Immediate
LTC4380CMS-3#PBF product page link
LTC4380CMS-2#PBF datasheet linkIC LOW CUR SURGE STOPPER 10MSOPLTC4380CMS-2#PBFIC LOW CUR SURGE STOPPER 10MSOP40 - Immediate
LTC4380CMS-2#PBF product page link
LTC4380IDD-1#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380IDD-1#PBFIC LOW CUR SURGE STOPPER 10DFN77 - Immediate
LTC4380IDD-1#PBF product page link
LTC4380HDD-4#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380HDD-4#PBFIC LOW CUR SURGE STOPPER 10DFN69 - Immediate
LTC4380HDD-4#PBF product page link
LTC4380CMS-4#PBF datasheet linkIC LOW CUR SURGE STOPPER 10MSOPLTC4380CMS-4#PBFIC LOW CUR SURGE STOPPER 10MSOP21 - Immediate
LTC4380CMS-4#PBF product page link
LTC4380IDD-4#PBF datasheet linkIC LOW CUR SURGE STOPPER 10DFNLTC4380IDD-4#PBFIC LOW CUR SURGE STOPPER 10DFN0LTC4380IDD-4#PBF product page link
LTC4380HMS-3#PBF datasheet linkIC LOW CUR SURGE STOPPER 10MSOPLTC4380HMS-3#PBFIC LOW CUR SURGE STOPPER 10MSOP25 - Immediate
LTC4380HMS-3#PBF product page link
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Published: 2016-04-26