LTC6102HDD#PBF Linear Technology, LTC6102HDD#PBF Datasheet

IC AMP CURRENT SENSE 8-DFN

LTC6102HDD#PBF

Manufacturer Part Number
LTC6102HDD#PBF
Description
IC AMP CURRENT SENSE 8-DFN
Manufacturer
Linear Technology
Datasheet

Specifications of LTC6102HDD#PBF

Amplifier Type
Current Sense
Number Of Circuits
1
Gain Bandwidth Product
200kHz
Current - Input Bias
60pA
Voltage - Input Offset
3µV
Current - Supply
420µA
Current - Output / Channel
1mA
Voltage - Supply, Single/dual (±)
4 V ~ 60 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-DFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
-3db Bandwidth
-
Slew Rate
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC6102HDD#PBFLTC6102HDD
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC6102HDD#PBFLTC6102HDD-1
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC6102HDD#PBFLTC6102HDD-1#PBF
Manufacturer:
Linear Technology
Quantity:
135
FEATURES
APPLICATIONS
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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.
TYPICAL APPLICATION
Supply Range:
±10μV Input Offset Maximum
±50nV/°C Input Offset Drift Maximum
Fast Response: 1μs Step Response
Gain Confi gurable with Two Resistors
Low Input Bias Current: 3nA Maximum
PSRR 130dB Minimum
Output Currents up to 1mA
Operating Temperature Range: –40°C to 125°C
Disable Mode (LTC6102-1 Only): 1μA Maximum
Available in 8-Lead MSOP and 3mm × 3mm
DFN Packages
Current Shunt Measurement
Battery Monitoring
Remote Sensing
Load Protection
Motor Control
Automotive Controls
4V to 60V, 70V Maximum (LTC6102)
5V to 100V, 105V Maximum (LTC6102HV)
5V TO
105V
+
V
SENSE
1mΩ
10A Current Sense with 10mA Resolution and 100mW
+
O
D
L
A
20Ω
R
IN
V
+IN
V
OUT
=
LTC6102
R
R
OUT
IN
+
• V
Maximum Dissipation
SENSE
= 249.5V
SENSE
V
OUT
–INS
–INF
V
REG
+
4.99k
R
OUT
*PROPER SHUNT SELECTION COULD ALLOW
MONITORING OF CURRENTS IN EXCESS OF 1000A
0.1μF
V
OUT
LTC2433-1
6102 TA01
DESCRIPTION
The LTC
side current sense amplifi ers. Their high supply voltage
rating allows their use in many high side applications,
while the low drift and offset ensure accuracy across a
wide range of operating conditions. The LTC6102-1 is a
version of the LTC6102 that includes a low power disable
mode to conserve system standby power.
The LTC6102/LTC6102HV monitor current via the voltage
across an external sense resistor (shunt resistor). Internal
circuitry converts input voltage to output current, allowing
a small sense signal on a large common mode voltage to
be translated to a ground-referred signal. Low DC offset
allows the use of very low shunt resistor values and large
gain-setting resistors. As a result, power loss in the shunt
is reduced.
The wide operating supply and high accuracy make the
LTC6102 ideal for a large array of applications, from auto-
motive, to industrial and power management. A maximum
input sense voltage of 2V allows a wide range of currents
and voltages to be monitored. Fast response makes the
LTC6102 the perfect choice for load current warnings and
shutoff protection control.
All versions of the LTC6102 are available in 8-lead MSOP
and 3mm × 3mm DFN packages.
5V
TO μP
1μF
Current Sense Amplifi er
®
6102/LTC6102HV are versatile, high voltage, high-
LTC6102-1/LTC6102HV
Precision Zero Drift
110
100
90
80
70
60
50
40
30
20
0.0001
R
Max V
SENSE
Measurement Range
SENSE
MAXIMUM SENSE VOLTAGE (V)
= 10mΩ
0.001
Dynamic Current
= 100μV
DYNAMIC RANGE RELATIVE
TO 10μV OFFSET VOLTAGE
R
Max V
0.01
SENSE
SENSE
LTC6102
= 100mΩ
0.1
= 1V
6102 TA01b
1
6102fd
1

Related parts for LTC6102HDD#PBF

LTC6102HDD#PBF Summary of contents

Page 1

... Load Protection n Motor Control n Automotive Controls 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. TYPICAL APPLICATION 10A Current Sense with 10mA Resolution and 100mW Maximum Dissipation ...

Page 2

... JA – EXPOSED PAD (PIN MUST BE SOLDERED TO PCB – *V FOR THE LTC6102/LTC6102HV, EN FOR THE LTC6102-1 ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC6102CDD#PBF LTC6102CDD#TRPBF LTC6102IDD#PBF LTC6102IDD#TRPBF LTC6102HDD#PBF LTC6102HDD#TRPBF LTC6102CDD-1#PBF LTC6102CDD-1#TRPBF LTC6102IDD-1#PBF LTC6102IDD-1#TRPBF LTC6102HDD-1#PBF LTC6102HDD-1#TRPBF LTC6102HVCDD#PBF LTC6102HVCDD#TRPBF LTC6102HVIDD#PBF LTC6102HVIDD#TRPBF LTC6102HVHDD#PBF LTC6102HVHDD#TRPBF LTC6102CMS8#PBF ...

Page 3

ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC6102HMS8#PBF LTC6102HMS8#TRPBF LTC6102CMS8-1#PBF LTC6102CMS8-1#TRPBF LTC6102IMS8-1#PBF LTC6102IMS8-1#TRPBF LTC6102HMS8-1#PBF LTC6102HMS8-1#TRPBF LTC6102HVCMS8#PBF LTC6102HVCMS8#TRPBF LTCVB LTC6102HVIMS8#PBF LTC6102HVIMS8#TRPBF LTC6102HVHMS8#PBF LTC6102HVHMS8#TRPBF LTCVB LEAD BASED FINISH TAPE AND REEL LTC6102CDD LTC6102CDD#TR LTC6102IDD LTC6102IDD#TR LTC6102HDD LTC6102HDD#TR LTC6102CDD-1 LTC6102CDD-1#TR LTC6102IDD-1 LTC6102IDD-1#TR ...

Page 4

LTC6102 LTC6102-1/LTC6102HV ELECTRICAL CHARACTERISTICS the full operating temperature range, otherwise specifi cations are – details 12V 0V 2.2V unless otherwise noted. EN SYMBOL PARAMETER + V Supply Voltage Range V Input ...

Page 5

ELECTRICAL CHARACTERISTICS the full operating temperature range, otherwise specifi cations are – details 12V 0V 2.2V unless otherwise noted. EN SYMBOL PARAMETER V Enable Input Voltage High ENH (LTC6102-1 Only) I ...

Page 6

LTC6102 LTC6102-1/LTC6102HV ELECTRICAL CHARACTERISTICS operating temperature range, otherwise specifi cations are – 12V unless otherwise noted. SYMBOL PARAMETER I Supply Current S f Sampling Frequency S Note 1: Stresses beyond those listed ...

Page 7

TYPICAL PERFORMANCE CHARACTERISTICS Input V vs Temperature 12V S –5 –10 –15 –20 –40 – 100 120 TEMPERATURE (°C) 6102 G01 LTC6102: V ...

Page 8

LTC6102 LTC6102-1/LTC6102HV TYPICAL PERFORMANCE CHARACTERISTICS LTC6102: Supply Current vs Supply Voltage 600 T = 70° 85°C A 500 T = 125°C A 400 300 T = 25° 0°C 200 –40°C A ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS Noise Spectral Density 200 GAIN = 10 100 0 100 1k 10k 100k FREQUENCY (Hz) 6102 G21 LTC6102-1: Supply Current vs Enable Voltage 450 400 350 300 250 200 150 TURN OFF (12V) 100 50 0 –50 ...

Page 10

LTC6102 LTC6102-1/LTC6102HV PIN FUNCTIONS –INS (Pin 1): Amplifi er Inverting Input. When tied to –INF , the internal sense amplifi er will drive –INS to the same potential as +IN. –INF (Pin 2): Force Input. This pin carries the input ...

Page 11

BLOCK DIAGRAM V BATTERY + SENSE SENSE IN – LOAD A D *LTC6102-1 ONLY 0.1μ 10V –INF 10V 5V –INS – – – EN ...

Page 12

LTC6102 LTC6102-1/LTC6102HV APPLICATIONS INFORMATION The LTC6102 high side current sense amplifi er (Figure 1) provides accurate monitoring of current through a user- selected sense resistor. The sense voltage is amplifi user-selected gain and level shifted from the ...

Page 13

APPLICATIONS INFORMATION a signifi cant load on the power supply and create thermal design headaches. In addition, heating in the sense resistor can reduce its accuracy and reliability. In contrast, the large dynamic range of the LTC6102 allows the use ...

Page 14

LTC6102 LTC6102-1/LTC6102HV APPLICATIONS INFORMATION the largest expected sense voltage gives I the maximum output dynamic range is available. Output dynamic range is limited by both the maximum allowed output current (Note 1) and the maximum allowed output voltage, as well ...

Page 15

APPLICATIONS INFORMATION Ideally, the circuit output is: R OUT V V • OUT SENSE SENSE this case, the only error is due to resistor mismatch, which provides an error in gain only. Output ...

Page 16

LTC6102 LTC6102-1/LTC6102HV APPLICATIONS INFORMATION of the amp. This form of clock feedthrough is indepen- dent of the magnitude of the input source resistance or the magnitude of the gain setting resistors. The LTC6102 has a residue clock feedthrough of less ...

Page 17

APPLICATIONS INFORMATION Output Filtering The output voltage simply I OUT makes fi ltering straightforward. Any circuit may be used which generates the required Z OUT response. For example, a capacitor in parallel with R will give a ...

Page 18

LTC6102 LTC6102-1/LTC6102HV APPLICATIONS INFORMATION the allowed output current. The gain is still controlled either gain or attenuation may be applied to OUT IN the input signal translated to the output. Finally, the ...

Page 19

APPLICATIONS INFORMATION If the output current is very low and an input transient occurs, there may be a delay before the output voltage begins changing. This can be reduced by increasing the minimum output current, either by increasing R decreasing ...

Page 20

LTC6102 LTC6102-1/LTC6102HV APPLICATIONS INFORMATION + V – SENSE + R IN +IN – + LOAD – BIAS 2.7M EN LTC6102-1 + – – SENSE Figure 11 pin. Figure 11 ...

Page 21

TYPICAL APPLICATIONS Bidirectional Current Sense Circuit with Separate Charge/Discharge Output I CHARGE 100Ω +IN V BATT + – – V LTC6102 DISCHARGING OUT D DISCHARGE CHARGING • R OUT C CHARGE ...

Page 22

LTC6102 LTC6102-1/LTC6102HV TYPICAL APPLICATIONS 16-Bit Resolution Unidirectional Output into LTC2433 ADC + 4V TO 60V – I LOAD POWER ENABLE V LOGIC 47k FAULT OFF ON 1μ SENSE 100Ω +IN –INS –INF L + – O ...

Page 23

TYPICAL APPLICATIONS R SENSE 500V + V R SENSE SENSE – SENSE AND M2 ARE FQD3P50 OUT R Input Overvoltage Protection + V – ...

Page 24

LTC6102 LTC6102-1/LTC6102HV PACKAGE DESCRIPTION 3.5 ±0.05 1.65 ±0.05 2.10 ±0.05 (2 SIDES) 0.25 ± 0.05 0.50 BSC 2.38 ±0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED NOTE: 1. DRAWING TO BE MADE ...

Page 25

... D 8/10 Updated graph 21 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. LTC6102 LTC6102-1/LTC6102HV PAGE NUMBER ...

Page 26

... Fully Tested at –55°C and 150°C www.linear.com ● • • R • C OUT OUT ADC C OUT REMOTE ADC , 55μA Supply Current, Shutdown Function EE , 0.4V/μs Slew Rate, >1MHz Bandwidth, <250μA EE – – , 2.85V to 36V Operation LT 0810 REV D • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2007 6102fd ...

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