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LTC4365CDDB#TRMPBF

Description
IC OVERVOLTAGE PROTECT 8-DFN
CategoryPower/power management    The power supply circuit   
File Size392KB,6 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC4365CDDB#TRMPBF Overview

IC OVERVOLTAGE PROTECT 8-DFN

LTC4365CDDB#TRMPBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeDFN
package instructionHVSON, SOLCC8,.08,20
Contacts8
Manufacturer packaging codeDDB
Reach Compliance Codecompliant
ECCN codeEAR99
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-N8
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeHVSON
Encapsulate equivalent codeSOLCC8,.08,20
Package shapeRECTANGULAR
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply2.5/34 V
Certification statusNot Qualified
Maximum seat height0.8 mm
Maximum supply current (Isup)0.15 mA
Maximum supply voltage (Vsup)34 V
Minimum supply voltage (Vsup)2.5 V
Nominal supply voltage (Vsup)5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width2 mm
Base Number Matches1
DEMO MANUAL DC1555C
LTC4365/LTC4365-1:
Overvoltage, Undervoltage and
Reverse Supply Protection Controller
Description
Demonstration circuit DC1555C is intended to demon-
strate the performance of the LTC4365 and LTC4365-1
Undervoltage, Overvoltage and Reverse Supply Protection
Controllers.
The
LTC
®
4365/LTC4365-1
protect circuits from input volt-
ages that may be too high, too low or negative. It operates
by controlling the gates of two back-to-back connected
MOSFETs to keep the output in a safe range. The OV and
UV protection levels are adjusted by resistive dividers at
the OV and UV pins. Asserting the
SHDN
pin disables the
MOSFETs and places the controller in a low-current shut-
down state. The
FAULT
pin is asserted when the Controller
is in shutdown mode or when the input voltage is outside
of the UV or OV level.
The LTC4365 and LTC4365-1 can withstand DC voltages
between –40V and +60V and have a valid operating range
of 2.5V to 34V.
Regarding the supply protection parameters, the LTC4365
and LTC4365-1 are identical. The only differences are
in the gate fault recovery delay time and the delay from
turn-off to low-power operation. These delays are 36ms
(typ, both) for the LTC4365, while they are 1ms and 0.7ms
respectively for the LTC4365-1.
The DC1555C includes the controller, two back-to-back
connected power MOSFETs, three jumpers and three
LEDs to indicate the input and output voltages and the
FAULT
pin signal.
Design files for this circuit board are available at
http://www.linear.com/demo/DC1555C
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
performance summary
SYMBOL
VIN
V
IN(UVLO)
I
VIN
I
VIN(R)
ΔV
GATE
I
GATE(UP)
I
GATE(FAST)
V
UV
V
OV
t
GATE(FAST)
t
FAULT
V
SHDN
PARAMETER
Board Input Voltage Range
Input Supply Undervoltage Lockout
Input Supply Current
Reverse Input Supply Current
External N-Channel Gate Drive (GATE – VOUT)
External N-Channel Gate Pull-Up current
(T
A
= 25°C)
CONDITIONS
VIN Rising
SHDN
= 0V
SHDN
= 2.5V
VIN = –40V, V
OUT
= 0V
VIN = VOUT = 5V, I
GATE
= –1µA
VIN = VOUT = 12V to 34V, I
GATE
= –1µA
GATE = VIN = VOUT = 12V
Fast Shutdown, GATE = 20V, VIN = VOUT = 12V
UV Falling
ΔV
GATE
= 0V
OV Rising
ΔV
GATE
= 0V
C
GATE
= 2.2nF, UV or OV Fault
Overdrive = 50mV, VIN = VOUT = 12V
SHDN
Falling to ΔV
GATE
= 0V
0.4
3
7.4
–12
31
50
492.5
492.5
MIN
–30
1.8
2.2
10
25
–1.2
3.6
8.4
–20
50
90
500
500
2
1
0.75
TYP
MAX
30
2.4
50
150
–1.8
4.2
9.8
–30
72
150
507.5
507.5
4
2
1.2
UNITS
V
V
µA
µA
mA
V
V
µA
mA
µA
mV
mV
µs
µs
V
External N-Channel Fast Gate Pull-Down Current
UV Input Threshold Voltage
OV Input Threshold Voltage
External N-Channel Fast Gate Turn-Off Delay
OV, UV Fault Propagation Delay
SHDN
Input Threshold
I
GATE(SLOW)
External N-Channel Gentle Gate Pull-Down Current Gentle Shutdown, GATE = 20V, VIN = VOUT = 12V
dc1555cfd
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