LT4356CDE-3 LINER [Linear Technology], LT4356CDE-3 Datasheet
LT4356CDE-3
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LT4356CDE-3 Summary of contents
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FEATURES n Stops High Voltage Surges n Adjustable Output Clamp Voltage n Overcurrent Protection n Wide Operation Range 80V n Reverse Input Protection to –60V n Low 7μA Shutdown Current n Adjustable Latchoff Fault Timer n Controls N-channel ...
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... LT4356CMS-3#PBF LT4356CMS-3#TRPBF LT4356IMS-3#PBF LT4356IMS-3#TRPBF LT4356CS-3#PBF LT4356CS-3#TRPBF LT4356IS-3#PBF LT4356IS-3#TRPBF LEAD BASED FINISH TAPE AND REEL LT4356CDE-3 LT4356CDE-3#TR LT4356IDE-3 LT4356IDE-3#TR LT4356CMS-3 LT4356CMS-3#TR LT4356IMS-3 LT4356IMS-3#TR LT4356CS-3 LT4356CS-3#TR LT4356IS-3 LT4356CS-3#TR Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER V Operating Voltage Range Supply Current Reverse Input Current R ΔV GATE Pin Output High Voltage GATE I GATE Pin Pull-Up Current ...
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LT4356-3 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER ΔV OUT Pin High Threshold OUT SHDN Pin Threshold V SHDN SHDN Pin Float Voltage V SHDN(FLT) SHDN Pin Current I SHDN t ) Overcurrent Turn Off ...
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TYPICAL PERFORMANCE CHARACTERISTICS Specifi cations are 12V 25°C unless otherwise noted SHDN Current vs Temperature SHDN –50 – 100 ...
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LT4356-3 TYPICAL PERFORMANCE CHARACTERISTICS Specifi cations are 12V 25°C unless otherwise noted ΔV vs Temperature GATE –1μA GATE ...
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TYPICAL PERFORMANCE CHARACTERISTICS Specifi cations are 12V 25°C unless otherwise noted Output Low Voltage vs Current 4.0 3.5 A OUT 3.0 2.5 2.0 1.5 1.0 0 0.5 1.0 1.5 CURRENT (mA) ...
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LT4356-3 PIN FUNCTIONS A : Amplifi er Output. Open collector output of the auxil- OUT iary amplifi er capable of sinking up to 2mA from 80V. The negative input of the amplifi internally connected to a ...
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BLOCK DIAGRAM 50mV – SHDN A OUT – 1.25V AUXILLARY AMPLIFIER + + IN SNS GATE 14V CHARGE PUMP – OC OUT SHDN CONTROL LOGIC GATEOFF – 1.35V 0. TMR ...
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LT4356-3 OPERATION Some power systems must cope with high voltage surges of short duration such as those in automobiles. Load circuitry must be protected from these transients, yet high availability systems must continue operating during these events. The LT4356-3 is ...
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APPLICATIONS INFORMATION The LT4356-3 can limit the voltage and current to the load circuitry during supply transients or overcurrent events. The total fault timer period should be set to ride through short overvoltage transients while not causing damage to the ...
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LT4356-3 APPLICATIONS INFORMATION Fault Timer Current The timer current starts at around 2μA with 0.5V or less increasing linearly to 50μA with 75V ing an overvoltage fault (Figure 1). During an overcurrent fault, it ...
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APPLICATIONS INFORMATION This fi xed early warning period allows the systems to per- form necessary backup or house keeping functions before the power supply is cut off. After V TMR threshold, the pass transistor turns off immediately. Note that during ...
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LT4356-3 APPLICATIONS INFORMATION MOSFET stress is the result of power dissipated within the device. For long duration surges of 100ms or more, stress is increasingly dominated by heat transfer; this is a matter of device packaging and mounting, and heatsink ...
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APPLICATIONS INFORMATION The LT4356-3 does not need extra compensation compo- nents at the GATE pin for stability during an overvoltage or overcurrent event. However, with fast, high voltage transient steps at the input, a gate capacitor, C1, to ground is ...
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LT4356-3 APPLICATIONS INFORMATION SNS 10mΩ Si4435 IRLR2908 V IN 12V D1 D2* 1N5245 SMAJ58CA 15V R6 10k 5 4 SNS GATE LT4356DE-3 7 SHDN 11 A OUT GND TMR 10 1 ...
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APPLICATIONS INFORMATION First, calculate the resistive divider value to limit V 16V during an overvoltage event 1.25V • 16V V REG R2 Set the current through R1 and R2 during the overvoltage condition ...
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LT4356-3 TYPICAL APPLICATIONS Wide Input Range 5V to 28V Hot Swap with Undervoltage Lockout 24V D2* SMAT70A *DIODES INC SNS 0.02Ω SUD50N03- 118k 10Ω SNS GATE OUT CC 47nF ...
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TYPICAL APPLICATIONS Overvoltage Regulator with Low Battery Detection and Output Keep Alive During Shutdown V IN 12V D2* SMAJ58A 2.5A, 48V Hot Swap with Overvoltage Output Regulation at 72V and UV Shutdown at 35V V IN 48V D2* SMAT70A 1k ...
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LT4356-3 TYPICAL APPLICATIONS 2.5A, 28V Hot Swap with Overvoltage Output Regulation at 36V and UV Shutdown at 15V V IN 28V D2* SMAT70A Overvoltage Regulator with Reverse Input Protection Up to –80V V IN 12V D1 1N4148 ...
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Plastic DFN (4mm × 3mm) (Reference LTC DWG # 05-08-1695 Rev D) 3.30 0.05 3.60 0.05 2.20 0.05 1.70 0.05 0.25 0.05 0.50 BSC 2.50 REF RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE ...
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LT4356-3 5.23 (.206) MIN 0.305 ± 0.038 (.0120 ± .0015) TYP RECOMMENDED SOLDER PAD LAYOUT 0.254 (.010) GAUGE PLANE 0.18 (.007) NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR ...
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PACKAGE DESCRIPTION .050 BSC N .245 MIN .030 .005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 45 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) .016 – .050 (0.406 – 1.270) NOTE: INCHES 1. DIMENSIONS ...
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LT4356-3 TYPICAL APPLICATION Overvoltage Regulator with Linear Regulator Up to 100mA 2N2905A V IN 12V D2* SMAJ58A R6 100k *DIODES INC. RELATED PARTS PART NUMBER DESCRIPTION LT1641-1/LT1641-2 Positive High Voltage Hot Swap™ Controllers LTC1696 Overvoltage Protection Controller LTC1735 High Effi ...