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LT6106IS5#TRMPBF

P1-P3P4-P6P7-P9P10-P12P13-P14
LT6106
1
6106fb
For more information www.linear.com/LT6106
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
36V Low Cost High Side
Current Sense in a SOT-23
The LT
®
6106 is a versatile high side current sense ampli-
fier. Design flexibility is provided by the excellent device
characteristics: 250µV maximum offset and 40nA maxi
-
mum input bias current. Gain for each device is set by two
resistors and allows for accuracy better than 1%.
The LT6106 monitors current via the voltage across an
external sense resistor (shunt resistor). Internal circuitry
converts input voltage to output current, allowing for a
small sense signal on a high common mode voltage to
be translated into a ground referenced signal. The low DC
offset allows for monitoring very small sense voltages. As
a result, a small valued shunt resistor can be used, which
minimizes the power loss in the shunt.
The wide 2.7V to 44V input voltage range, high accuracy
and wide operating temperature range make the LT6106
ideal for automotive, industrial and power management
applications. The very low power supply current of the
LT6106 also makes it suitable for low power and battery
operated applications.
n
Gain Configurable with Two Resistors
n
Low Offset Voltage: 250µV Maximum
n
Output Current: 1mA Maximum
n
Supply Range: 2.7V to 36V, 44V Absolute Maximum
n
Low Input Bias Current: 40nA Maximum
n
PSRR: 106dB Minimum
n
Low Supply Current: 65µA Typical, V
+
= 12V
n
Operating Temperature Range: –40°C to 125°C
n
Low Profile (1mm) ThinSOT™ Package
n
Current Shunt Measurement
n
Battery Monitoring
n
Power Management
n
Motor Control
n
Lamp Monitoring
n
Overcurrent and Fault Detection
LT6106
1k
V
OUT
200mV/A
6106 TA01a
100Ω
3V TO 36V
LOAD
0.02Ω
–
+
V
+
V
–
OUT
–IN+IN
3V to 36V, 5A Current Sense with A
V
= 10 Measurement Accuracy vs Load Current
LOAD CURRENT (A)
0
–1.2
ACCURACY (% OF FULL SCALE)
–1.0
–0.6
–0.4
–0.2
2
4
5
0.6
6106 TA01b
–0.8
1 3
0
0.2
0.4
LIMIT OVER TEMPERATURE
LIMIT OVER TEMPERATURE
TYPICAL PART AT T
A
= 25°C
5A FULL SCALE
R
SENSE
= 0.02Ω
A
V
= 10
R
IN
= 100Ω
R
OUT
= 1k
V
+
= 3V
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
LT6106
2
6106fb
For more information www.linear.com/LT6106
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
+
to V
–
) ..........................................44V
Input Voltage (+IN to V
–
) ............................................. V
+
(–IN to V
–
) ............................................ V
+
Input Current ........................................................–10mA
Output Short-Circuit Duration .......................... Indefinite
Operating Temperature Range (Note 4)
LT6106C/LT6106I .................................–40°C to 85°C
LT6106H ............................................ –40°C to 125°C
Specified Temperature Range (Note 4)
LT6106C .................................................. 0°C to 70°C
LT6106I ................................................–40°C to 85°C
LT6106H ............................................ –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C
(Note 1)
OUT
1
V
–
2
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
–IN 3
5 V
+
4 +IN
T
JMAX
= 150°C, θ
JA
= 250°C/W
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
+
Supply Voltage Range
l
2.7 36 V
V
OS
Input Offset Voltage V
SENSE
= 5mV
l
150 250
350
µV
µV
ΔV
OS
/ΔT Input Offset Voltage Drift V
SENSE
= 5mV
l
1 µV/°C
I
B
Input Bias Current (+IN) V
+
= 12V, 36V
l
40
65
nA
nA
I
OS
Input Offset Current V
+
= 12V, 36V 1 nA
I
OUT
Maximum Output Current (Note 2)
l
1 mA
PSRR Power Supply Rejection Ratio V
+
= 2.7V to 36V, V
SENSE
= 5mV
l
106 dB
V
SENSE(MAX)
Input Sense Voltage Full Scale R
IN
= 500Ω (Notes 2, 7)
l
0.5 V
A
V
Error Gain Error (Note 3) V
SENSE
= 500mV, R
IN
= 500Ω, R
OUT
= 10k, V
+
= 12.5V
l
–0.65 –0.25 0 %
V
SENSE
= 500mV, R
IN
= 500Ω, R
OUT
= 10k, V
+
= 36V
l
–0.45 –0.14 0.1 %
The l denotes the specifications which apply over the full specified
operating temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 12V, V
+
= V
SENSE
+, R
IN
= 100Ω, R
OUT
= 10k, Gain = 100
unless otherwise noted. (Note 6)
TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT6106CS5#TRMPBF LT6106CS5#TRPBF LTCWK 5-Lead Plastic TSOT-23 0°C to 70°C
LT6106IS5#TRMPBF LT6106IS5#TRPBF LTCWK 5-Lead Plastic TSOT-23 –40°C to 85°C
LT6106HS5#TRMPBF LT6106HS5#TRPBF LTCWK 5-Lead Plastic TSOT-23 –40°C to 125°C
*Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Parts ending with PBF are RoHS and WEEE compliant.
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.
ORDER INFORMATION
(http://www.linear.com/product/LT6106#orderinfo)
LT6106
3
6106fb
For more information www.linear.com/LT6106
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. In addition to the Absolute Maximum Ratings, the
output current of the LT6106 must be limited to insure that the power
dissipation in the LT6106 does not allow the die temperature to exceed
150°C. See the applications information section “Power Dissipation
Considerations” for further information.
Note 2: Guaranteed by the gain error test.
Note 3: Gain error refers to the contribution of the LT6106 internal
circuitry and does not include errors in the external gain setting resistors.
Note 4: The LT6106C is guaranteed functional over the operating
temperature range of –40°C to 85°C. The LT6106C is designed,
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full specified
operating temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 12V, V
+
= V
SENSE
+, R
IN
= 100Ω, R
OUT
= 10k, Gain = 100
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OUT(HIGH)
Output Swing High
(Referred to V
+
)
V
SENSE
= 120mV
l
1.2
1.4
V
V
Minimum Output Voltage
(Note 5)
V
SENSE
= 0mV, R
IN
= 100Ω, R
OUT
= 10k
l
12 45
65
mV
mV
V
SENSE
= 0mV, R
IN
= 500Ω, R
OUT
= 10k, V
+
= 12V, 36V
l
7 16
22
mV
mV
BW Signal Bandwidth (–3dB) I
OUT
= 1mA, R
IN
= 100Ω, R
OUT
= 5k 200 kHz
t
r
Input Step Response (to 50% of
Output Step)
ΔV
SENSE
= 100mV Step, R
IN
= 100Ω, R
OUT
= 5k,
Rising Edge
3.5 µs
I
S
Supply Current V
+
= 2.7V, I
OUT
= 0µA, (V
SENSE
= –5mV)
l
60 85
115
µA
V
+
= 12V, I
OUT
= 0µA, (V
SENSE
= –5mV)
l
65 95
120
µA
V
+
= 36V, I
OUT
= 0µA, (V
SENSE
= –5mV)
l
70 100
130
µA
characterized and expected to meet specified performance from –40°C to
85°C but is not tested or QA sampled at these temperatures. The LT6106I
is guaranteed to meet specified performance from –40°C to 85°C. The
LT6106H is guaranteed to meet specified performance from –40°C to
125°C.
Note 5: The LT6106 output is an open collector current source. The
minimum output voltage scales directly with the ratio R
OUT
/10k.
Note 6: V
SENSE
+
is the voltage at the high side of the sense resistor,
R
SENSE
. See Figure 1.
Note 7: V
SENSE (MAX)
is the maximum sense voltage for which the Electrical
Characteristics will apply. Higher voltages can affect performance but will
not damage the part provided that the output current of the LT6106 does
not exceed the allowable power dissipation as described in Note 1.
TYPICAL PERFORMANCE CHARACTERISTICS
Input Offset Voltage vs
Temperature
TEMPERATURE (°C)
–55
INPUT OFFSET VOLTAGE (µV)
0
200
125
6106 G03
–200
–400
–25 5
35 65
95
400
–100
100
–300
300
V
SENSE
= 5mV
V
+
= 12V
R
IN
= 100Ω
R
OUT
= 10k
A
V
= 100
TYPICAL UNITS
INPUT OFFSET VOLTAGE (µV)
–200
PERCENT OF UNITS (%)
10
12
16
120
6106 G23
4
8
14
6
2
0
–120
–40 0
40
200
V
+
= 12V
V
SENSE
= 5mV
R
IN
= 100Ω
R
OUT
= 10k
1068 UNITS
V
OS
Distribution
SUPPLY VOLTAGE (V)
0
CHANGE IN INPUT OFFSET VOLTAGE (µV)
10
40
50
40
6106 G02
0
–10
–70
10
20
30
5
15
25
35
–30
70
60
30
20
–20
–40
–50
–60
V
SENSE
= 5mV
R
IN
= 100Ω
R
OUT
= 10k
TYPICAL UNITS
Input Offset Voltage vs
Supply Voltage
P1-P3P4-P6P7-P9P10-P12P13-P14

LT6106IS5#TRMPBF

Mfr. #:
Buy LT6106IS5#TRMPBF
Manufacturer:
Analog Devices Inc.
Description:
Current Sense Amplifiers L Cost, 36V Hi Side C Sense Amp
Lifecycle:
New from this manufacturer.
Delivery:
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