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LT3092EST#PBF

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LT3092
1
3092fc
For more information www.linear.com/LT3092
Typical applicaTion
DescripTion
200mA 2-Terminal
Programmable Current Source
The LT
®
3092 is a programmable 2-terminal current
source. It requires only two resistors to set an output
current between 0.5mA and 200mA. A multitude of analog
techniques lend themselves to actively programming the
output current. The LT3092 is stable without input and
output capacitors, offering high DC and AC impedance. This
feature allows operation in intrinsically safe applications.
The SET pin features 1% initial accuracy and low tem
-
perature coefficient. Current regulation is better than
10ppm/V from 1.5V to 40V.
The LT3092
can operate in a 2-terminal current source
configuration in series with signal lines. It is ideal for driv
-
ing sensors, remote supplies, and as a precision current
limiter for local supplies.
Internal protection circuitry includes reverse-battery and
reverse-current protection, current limiting and thermal
limiting. The LT3092 is offered in the 8-lead TSOT-23,
3-lead SOT-223 and 8-lead 3mm × 3mm DFN packages.
Adjustable 2-Terminal Current Source
FeaTures
applicaTions
n
Programmable 2-Terminal Current Source
n
Maximum Output Current: 200mA
n
Wide Input Voltage Range: 1.2V to 40V
n
Input/Output Capacitors Not Required
n
Resistor Ratio Sets Output Current
n
Initial Set Pin Current Accuracy: 1%
n
Reverse-Voltage Protection
n
Reverse-Current Protection
n
<0.001%/V Line Regulation Typical
n
Current Limit and Thermal Shutdown Protection
n
Available in 8-Lead SOT-23, 3-Lead SOT-223 and
8-Lead 3mm × 3mm DFN Packages
n
2-Terminal Floating Current Source
n
GND Referred Current Source
n
Variable Current Source
n
In-Line Limiter
n
Intrinsic Safety Circuits
SET Pin Current vs Temperature
3092 TA01a
IN
SET OUT
+
–
LT3092
10µA
R
OUT
R
SET
V
IN
– V
OUT
= 1.2V TO 40V
I
SOURCE
= 10µA •
R
SET
R
OUT
TEMPERATURE (°C)
–50
9.900
SET PIN CURRENT (µA)
9.950
10.000
10.050
–25
0
25 50 10075 125
10.100
9.925
9.975
10.025
10.075
150
3092 TA01b
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.
LT3092
2
3092fc
For more information www.linear.com/LT3092
pin conFiguraTion
absoluTe MaxiMuM raTings
IN Pin Voltage Relative to SET, OUT ........................±40V
SET Pin Current (Note 6) ..................................... ±15mA
SET Pin Voltage (Relative to OUT, Note 6) .............. ±10V
Output Short-Circuit Duration .......................... Indefinite
(Note 1) All Voltages Relative to V
OUT
TOP VIEW
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
5
6
7
8
9
4
3
2
1OUT
OUT
NC
SET
IN
IN
NC
NC
T
JMAX
= 125°C, θ
JA
= 28°C/W, θ
JC
= 10°C/W
EXPOSED PAD (PIN 9) IS OUT, MUST BE SOLDERED TO OUT
ON THE PCB. SEE THE APPLICATIONS INFORMATION SECTION.
3
2
1
TOP VIEW
TAB IS OUT
IN
OUT
SET
ST PACKAGE
3-LEAD PLASTIC SOT-223
T
JMAX
= 125°C, θ
JA
= 24°C/W, θ
JC
= 15°C/W
TAB IS OUT, MUST BE SOLDERED TO OUT ON THE PCB.
SEE THE APPLICATIONS INFORMATION SECTION.
NC 1
OUT 2
OUT 3
OUT 4
8 IN
7 IN
6 NC
5 SET
TOP VIEW
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C, θ
JA
= 57°C/W, θ
JC
= 15°C/W
Operating Junction Temperature Range (Notes 2, 8)
E, I Grades ......................................... –40°C to 125°C
MP Grade ........................................... –55°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (ST, TS8 Packages Only)
Soldering, 10 sec .............................................. 300°C
LT3092
3
3092fc
For more information www.linear.com/LT3092
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3092EDD#PBF LT3092EDD#TRPBF LFJD 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LT3092IDD#PBF LT3092IDD#TRPBF LFJD 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LT3092EST#PBF LT3092EST#TRPBF 3092 3-Lead Plastic SOT-223 –40°C to 125°C
LT3092IST#PBF LT3092IST#TRPBF 3092 3-Lead Plastic SOT-223 –40°C to 125°C
LT3092MPST#PBF LT3092MPST#TRPBF 3092MP 3-Lead Plastic SOT-223 –55°C to 125°C
LT3092ETS8#PBF LT3092ETS8#TRPBF LTFJW 8-Lead Plastic SOT-23 –40°C to 125°C
LT3092ITS8#PBF LT3092ITS8#TRPBF LTFJW 8-Lead Plastic SOT-23 –40°C to 125°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3092EDD LT3092EDD#TR LFJD 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LT3092IDD LT3092IDD#TR LFJD 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LT3092EST LT3092EST#TR 3092 3-Lead Plastic SOT-223 –40°C to 125°C
LT3092IST LT3092IST#TR 3092 3-Lead Plastic SOT-223 –40°C to 125°C
LT3092MPST LT3092MPST#TR 3092MP 3-Lead Plastic SOT-223 –55°C to 125°C
LT3092ETS8 LT3092ETS8#TR LTFJW 8-Lead Plastic SOT-23 –40°C to 125°C
LT3092ITS8 LT3092ITS8#TR LTFJW 8-Lead Plastic SOT-23 –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/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
http://www.linear.com/product/LT3092#orderinfo
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LT3092EST#PBF

Mfr. #:
Buy LT3092EST#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Current & Power Monitors & Regulators 200mA Two Terminal Programmable Current Source
Lifecycle:
New from this manufacturer.
Delivery:
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