LTC4361-1_12 LINER [Linear Technology], LTC4361-1_12 Datasheet
LTC4361-1_12
Related parts for LTC4361-1_12
LTC4361-1_12 Summary of contents
Page 1
... LTC4361 provides protection from transients up to 80V without requiring transient voltage suppressors or other external components. The LTC4361 has a delayed start-up and adjustable dV/dt ramp-up for inrush current limiting. A PWRGD pin provides power good monitoring for V shutdown controlled by the ON pin and drives an optional external P-channel MOSFET for negative voltage protection ...
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... For more information on tape and reel specifications, go to: 2 Operating Temperature Range LTC4361C ................................................ 0°C to 70°C LTC4361I .............................................–40°C to 85°C LTC4361H .......................................... –40°C to 125°C Storage Temperature Range .................. –65°C to 150°C Lead Temperature (Soldering, 10 sec) TSOT ................................................................. 300°C 8 PWRGD 7 GATE ...
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... Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. LTC4361-1/LTC4361-2 The denotes the specifications which apply over the full operating l = 25° ...
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... LTC4361-1/LTC4361-2 Typical perFormance characTerisTics T = 25° 5V 0V, unless otherwise noted Input Supply Current vs Input Voltage 10000 1000 100 (V) IN 436112 G01 PWRGD Voltage vs PWRGD Current 500 400 300 200 100 (mA) ...
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... IN(OV) ing lockout, GATE is held low and the PWRGD pull-down releases. ON: On Control Input. A logic low at ON enables the LTC4361. A logic high at ON activates a low current pull-down at the GATE pin and causes the LTC4361 to enter a low current sleep mode. An internal 5µA current pulls ON down to ground ...
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... The LTC4361 has a CMOS compatible ON input. When driven low, the part is enabled. When driven high, the external N-channel MOSFET is turned off and the supply current of the LTC4361 drops to 1.5µA. The PWRGD pull- down releases during this low current sleep mode, UVLO, overvoltage or overcurrent and the subsequent 130ms start-up delay ...
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... The typical LTC4361 application protects 2.5V to 5.5V systems in portable devices from power supply overvolt- age. The basic application circuit is shown in Figure 1. Device operation and external component selection is discussed in detail in the following sections SENSE 0.025 Si1470DH GATE SENSE OUT LTC4361 ...
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... The PWRGD pull-down is capable of sinking up to 3mA of current allowing it to drive an optional LED. To interface PWRGD to another I/O rail, connect a resistor from PWRGD to the I/O rail with a resistance low enough to override the internal 500k pull-up to OUT. Figure 2 details PWRGD behavior for a LTC4361-2 with 1k pull- PWRGD. RESTART RESTART OV FROM OV ...
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... GATE is pulled low with a weak pull-down current (40µA) to turn off the external MOSFET gradually, minimizing input voltage transients. The LTC4361 then goes into a low current sleep mode, drawing only 1.5µA at IN. When ON goes back low, the part restarts with a 130ms delay cycle. ...
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... LC circuit. The resultant voltage overshoot at IN can rise to twice the DC output voltage of the wall adaptor as shown in Figure 4. Figure 5 shows the 20V adaptor output applied to the LTC4361. Due to the low capacitance at the IN pin, the plug-in transient has been brought down to a manageable level. ...
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... LTC4361 controlling a 60V rated MOSFET. Input transients also occur when the current through the cable inductance changes abruptly. This can happen when the LTC4361 turns off the N-channel MOSFET rapidly in an overvoltage or overcurrent event. Figure 7 shows an input transient after an overcurrent. The current ...
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... IN the N-channel MOSFET shuts off, the energy stored dumped into C , causing a large 40V input transient. OUT The LTC4361 limits this rise in the output voltage. If the ∆V due to the discharge of the energy in L OUT C is not acceptable or the avalanche capability of the ...
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... DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE LTC4361-1/LTC4361-2 TYP 5 8 0.40 ±0.10 PIN 1 NOTCH R = 0.20 OR 0.25 × ...
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... LTC4361-1/LTC4361-2 package DescripTion Please refer to http://www.linear.com/designtools/packaging/ 0.40 MAX 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5 ...
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... Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC4361-1/LTC4361-2 and t in Electrical Characteristics section ...
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... On Resistance, Low Reverse Leakage Current, 18mV Regulated Forward Voltage (LTC4413-2 with Overvoltage Protection Sensor) www.linear.com ● Overcurrent and Reverse Current FDC6561AN R SENSE 0. OUT 10µF GATE SENSE OUT V LTC4361 GATEP PWRGD LN1351CTR GND 436112 TA03 : 3µ 2.0V to 45V 0.6V to 39.5V OUT : 3µ ...