lt6107mps5-trpbf Linear Technology Corporation, lt6107mps5-trpbf Datasheet

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lt6107mps5-trpbf

Manufacturer Part Number
lt6107mps5-trpbf
Description
High Temperature High Side Current Sense Amp In Sot-23
Manufacturer
Linear Technology Corporation
Datasheet
FEATURES
APPLICATIONS
TYPICAL APPLICATION
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Fully Tested at –55°C, 25°C and 150°C
Gain Confi gurable with Two Resistors
Low Offset Voltage: 250μV 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: 65μA Typical, V
Low Profi le (1mm) ThinSOT
Current Shunt Measurement
Battery Monitoring
Power Management
Motor Control
Lamp Monitoring
Overcurrent and Fault Detection
0.02Ω
3V TO 36V
LOAD
3V to 36V, 5A Current Sense with A
100Ω
+IN
V
LT6107
+
TM
Package
–IN
OUT
V
6107 TA01a
+
+
V
= 12V
= 10
1k
V
200mV/A
OUT
Current Sense Amp in SOT-23
High Temperature High Side
DESCRIPTION
The LT
fi er designed for operation over a wide temperature range.
Design fl exibility is provided by the excellent device char-
acteristics: 250μV maximum offset and 40nA maximum
input bias current. Gain for each device is set by two re-
sistors and allows for accuracy better than 1%.
The LT6107 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 LT6107
ideal for automotive, industrial and power management
applications. The very low power supply current of the
LT6107 also makes it suitable for low power and battery
operated applications. For applications not requiring the
wide temperature range, see the LT6106.
®
6107 is a versatile high side current sense ampli-
–0.2
–0.4
–0.8
–0.6
–1.0
–1.2
Measurement Accuracy vs Load Current
0.6
0.4
0.2
0
0
5A FULL SCALE
R
A
R
SENSE
V
IN
= 10
= 100
= 0.02
1
LOAD CURRENT (A)
R
V
OUT
+
2
TYPICAL PART, T
= 3V
= 1k
3
A
4
= 25°C
6107 TA01b
LT6107
5
6107fb
1

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lt6107mps5-trpbf Summary of contents

Page 1

... Lamp Monitoring ■ Overcurrent and Fault Detection ■ , 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. TYPICAL APPLICATION 3V to 36V, 5A Current Sense with 36V 100Ω ...

Page 2

... LT6107MPS5#TRPBF Lead Based Finish TAPE AND REEL (MINI) TAPE AND REEL LT6107MPS5#TRM LT6107MPS5#TR TRM = 500 pieces. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: ELECTRICAL CHARACTERISTICS operating temperature range, otherwise specifi cations are at T unless otherwise noted ...

Page 3

ELECTRICAL CHARACTERISTICS operating temperature range, otherwise specifi cations are at T unless otherwise noted. (Note 6) SYMBOL PARAMETER Minimum Output Voltage (Note 5) BW Signal Bandwidth (–3dB) t Input Step Response (to 50 Output Step) I Supply Current ...

Page 4

LT6107 TYPICAL PERFORMANCE CHARACTERISTICS Gain Error vs Temperature 0.00 –0. 36V –0.10 –0. 12V –0. –0.25 + –0. 2.7V –0. OUT I = 1mA –0.40 ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Step Response 0mV to 100mV (R = 100Ω SENSE 200mV/DIV V OUT 2V/DIV 0V 6107 G12 A = 100 5μs/DIV 10V OUT R = 10k OUT + V = 12V ...

Page 6

LT6107 TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage vs Input Sense Voltage (0mV ≤ V ≤ 200mV) SENSE 12V A = 100 100Ω 10k OUT ...

Page 7

APPLICATIONS INFORMATION Introduction The LT6107 high side current sense amplifi er (Figure 1) pro- vides accurate monitoring of current through a user-selected sense resistor. The sense voltage is amplifi user- selected gain and level shifted from the ...

Page 8

LT6107 APPLICATIONS INFORMATION by orders of magnitude. A sense resistor with integrated Kelvin sense terminals will give the best results. Figure 2 illustrates the recommended method SENSE +IN – + LOAD – V LT6107 Figure ...

Page 9

APPLICATIONS INFORMATION Output Error Due to the Amplifi Offset Voltage OUT E V • = OUT VOS ( ) The DC offset voltage of the amplifi er adds directly to the value ...

Page 10

LT6107 APPLICATIONS INFORMATION power dissipation is 41mW. This amount of power dis- sipation will result in a 10°C rise in junction temperature above the ambient temperature important to note that the LT6107 has been designed to provide at ...

Page 11

... DIMENSIONS ARE INCLUSIVE OF PLATING Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. Response Time ...

Page 12

... Input Common Mode Range, 300μV Offset, 1% Gain Accuracy, Gain Confi gurable 2.7V to 36V, Gain Confi gurable, SOT-23 www.linear.com ● DANGER!! HIGH VOLTAGE!! 12V CMPZ12L 2M , 60V, 60μA Operation OS LT 0808 REV B • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 6107fb ...

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