LT3799EMSE 查看數據表（PDF） - Linear Technology
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LT3799EMSE Datasheet PDF : 20 Pages
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LT3799
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, FAULT..................................................................32V
GATE, INTVCC............................................................18V
CTRL1, CTRL2, CTRL3, VIN_SENSE, COMP–.................4V
FB, CT, VREF, COMP+,....................................................3V
SENSE....................................................................... 0.4V
DCM........................................................................±3mA
Maximum Junction Temperature........................... 125°C
Operating Temperature Range (Note 2)
LT3799E............................................. –40°C to 125°C
LT3799I.............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
CTRL1 1
16 VIN_SENSE
CTRL2 2
15 SENSE
CTRL3 3
14 GATE
VREF 4
17
13 INTVCC
FAULT 5
GND
12 NC
CT 6
COMP+ 7
COMP– 8
11 VIN
10 DCM
9 FB
MSE PACKAGE
16-LEAD PLASTIC MSOP
θJA = 50°C/W, θJC = 10°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3799EMSE#PBF
LT3799EMSE#TRPBF 3799
16-Lead Plastic MSOPE
–40°C to 125°C
LT3799IMSE#PBF
LT3799IMSE#TRPBF
3799
16-Lead Plastic MSOPE
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 18V, INTVCC = 11V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN Turn-On Voltage
VIN Turn-Off Voltage
VIN Hysteresis
VIN Shunt Regulator Voltage
VIN Shunt Regulator Current Limit
VIN Quiescent Current
VTURNON – VTURNOFF
I = 1mA
Before Turn-On
After Turn-On
22.2
23
24.2
V
11.8 12.3 13.0
V
10.7
V
25.0
V
15
mA
55
65
75
µA
70
µA
INTVCC Quiescent Current
Before Turn-On
After Turn-On
12
16
20.0
µA
1.5
1.2
2.6
mA
VIN_SENSE Threshold
VIN_SENSE Linear Range
VREF Voltage
Turn-Off
0µA Load
200µA Load
30
65
90
mV
0
1.3
V
l 1.975
2
2.02
V
l 1.9555 1.98 2.02
V
Error Amplifier Voltage Gain
Error Amplifier Transconductance
∆VCOMP+/∆VCOMP–, CTRL1 = 1V, CTRL2 = 2V, CTRL3 = 2V
∆I = 5µA
100
V/ V
50
µmhos
3799p
2
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