鈻?/div>
DESCRIPTION
The LT
廬
6106 is a versatile high side current sense ampli-
鏗乪r. Design 鏗俥xibility is provided by the excellent device
characteristics: 250渭V 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.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Gain Con鏗乬urable with Two Resistors
Low Offset Voltage: 250渭V Maximum
Output Current: 1mA Maximum
Supply Range: 2.7V to 36V, 44V Absolute Maximum
Low Input Bias Current: 40nA Maximum
PSRR: 106dB Minimum
Low Supply Current: 65渭A Typical, V
+
= 12V
Operating Temperature Range: 鈥?0擄C to 125擄C
Low Pro鏗乴e (1mm) ThinSOT
TM
Package
APPLICATIONS
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Current Shunt Measurement
Battery Monitoring
Power Management
Motor Control
Lamp Monitoring
Overcurrent and Fault Detection
TYPICAL APPLICATION
3V to 36V, 5A Current Sense with A
V
= 10
3V TO 36V
Measurement Accuracy vs Load Current
0.6
0.4
ACCURACY (% OF FULL SCALE)
LIMIT OVER TEMPERATURE
100惟
0.02惟
+IN
LOAD
V
鈥?/div>
鈥揑N
0.2
0
鈥?.2
鈥?.4
鈥?.6
鈥?.8
LIMIT OVER TEMPERATURE
TYPICAL PART AT T
A
= 25擄C
LT6106
鈥?/div>
V
+
OUT
1k
6106 TA01a
+
V
OUT
200mV/A
5A FULL SCALE R
IN
= 100惟
鈥?.0 R
SENSE
= 0.02惟 R
OUT
= 1k
A
V
= 10
V
+
= 3V
鈥?.2
0
1
3
2
LOAD CURRENT (A)
4
5
6106 TA01b
6106fa
1
LT6106相關(guān)型號(hào)PDF文件下載
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