LT3799EMSE-1-PBF Просмотр технического описания (PDF) - Linear Technology
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LT3799EMSE-1-PBF Datasheet PDF : 20 Pages
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LT3799-1
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, FAULT.................................................................32V
GATE, INTVCC ...........................................................12V
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)
LT3799-1E.......................................... –40°C to 125°C
LT3799-1I........................................... –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
FAULT 5
17
GND
13 INTVCC
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-1#PBF
LT3799EMSE-1#TRPBF 37991
16-Lead Plastic MSOPE
–40°C to 125°C
LT3799IMSE-1#PBF
LT3799IMSE-1#TRPBF 37991
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
μA
1.5
2.1
2.6
mA
VIN_SENSE Linear Range
VREF Voltage
0μA Load
200μA Load
0
1.3
V
l 1.97
2
2.03
V
l 1.95 1.98 2.03
V
Error Amplifier Voltage Gain
Error Amplifier Transconductance
ΔVCOMP+/ΔVCOMP–, CTRL1 = 1V, CTRL2 = 2V, CTRL3 = 2V
ΔI = 5μA
100
V/ V
50
μmhos
37991f
2
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