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LT6118IMS8#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LT6118
1
6118f
For more information www.linear.com/LT6118
Typical applicaTion
FeaTures DescripTion
Current Sense Amplifier,
Reference and Comparator
with POR
The LT
®
6118 is a complete high side current sense device
that incorporates a precision current sense amplifier, an
integrated voltage reference and a latching comparator.
The comparator latch functionality can be enabled or
disabled and the comparator can be configured to reset
upon power-on. The input and the open-drain output of
the comparator are independent from the current sense
amplifier. The comparator trip point and amplifier gain are
configured with external resistors.
The overall propagation delay of the LT6118 is typically only
1.4µs, allowing for quick reaction to overcurrent condi
-
tions. The 1MHz bandwidth allows the LT6118 to be used
for error detection in critical applications such as motor
control. The high threshold accuracy of the comparator
,
combined with the ability to latch the comparator
, ensures
the LT6118 can capture high speed events.
The LT6118 is fully specified for operation from –40°C to
125°C, making it suitable for industrial and automotive
applications. The LT6118 is available in the small 8-lead
MSOP and 8-lead DFN packages.
Fast Acting Fault Protection with Power-On Reset
applicaTions
n
Current Sense Amplifier
– Fast Step Response: 500ns
– Low Offset Voltage: 200µV Maximum
– Low Gain Error: 0.2% Maximum
n
Internal 400mV Precision Reference
n
Internal Comparator
– Power-On Reset Capability
– Fast Response Time: 500ns
– Total Threshold Error: ±1.25% Maximum
n
Wide Supply Range: 2.7V to 60V
n
Supply Current: 450µA
n
Specified for –40°C to 125°C Temperature Range
n
Available in 8-Lead MSOP and 8-Lead (2mm × 3mm)
DFN Packages
n
Overcurrent and Fault Detection
n
Current Shunt Measurement
n
Battery Monitoring
n
Motor Control
n
Automotive Monitoring and Control
n
Industrial Control
L, LT, LTC, LTM, TimerBlox, Linear Technology and the Linear logo are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners.
Response to Overcurrent Event
SENSEHI SENSELO
OUTA
LT6118
INC
250mA DISCONNECT
V
+
LE
OUTC
V
–
0.1Ω
3.3V
12V
100Ω
10k
*CMH25234B
1k
24.9k
1k
2N2700
6.2V*
6.04k
0.1µF
IRF9640
V
OUT
1.6k
6118 TA01a
TO LOAD
100nF
V
LOAD
10V/DIV
I
LOAD
200mA/DIV
V
OUTC
5V/DIV
0V
0V
0mA
6118 TA01b
5µs/DIV
250mA DISCONNECT
LT6118
2
6118f
For more information www.linear.com/LT6118
absoluTe MaxiMuM raTings
Total Supply Voltage (V
+
to V
–
) .................................60V
Maximum Voltage
(SENSELO, SENSEHI, OUTA) ............................... V
+
+ 1V
Maximum V
+
– (SENSELO or SENSEHI) ....................33V
Maximum LE Voltage ................................................60V
Maximum Comparator Input Voltage ........................60V
Maximum Comparator Output Voltage......................60V
Input Current (Note 2) ..........................................–10mA
SENSEHI, SENSELO Input Current ....................... ±10mA
Differential SENSEHI or SENSELO Input Current ..±2.5mA
(Note 1)
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT6118IMS8#PBF LT6118IMS8#TRPBF LTGNS 8-Lead Plastic MSOP –40°C to 85°C
LT6118HMS8#PBF LT6118HMS8#TRPBF LTGNS 8-Lead Plastic MSOP –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.
Consult LTC Marketing for information on non-standard lead based finish parts.
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/
Amplifier Output Short-Circuit Duration (to V
–
) .. Indefinite
Operating Temperature Range (Note 3)
LT6118I ................................................–40°C to 85°C
LT6118H ............................................. –40°C to 125°C
Specified Temperature Range (Note 3)
LT6118I ................................................–40°C to 85°C
LT6118H ............................................. –40°C to 125°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range .................. –65°C to 150°C
MSOP Lead Temperature (Soldering, 10 sec) ........ 300°C
pin conFiguraTion
1
2
3
4
SENSELO
LE
OUTC
V
–
8
7
6
5
SENSEHI
V
+
OUTA
INC
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
θ
JA
= 163°C/W, θ
JC
= 45°C/W
TOP VIEW
SENSEHI
V
+
OUTA
INC
SENSELO
LE
OUTC
V
–
DCB PACKAGE
8-LEAD (2mm × 3mm) PLASTIC DFN
9
3
4
2
1
6
5
7
8
θ
JA
= 64°C/W, θ
JC
= 10°C/W
EXPOSED PAD (PIN 9) IS V
–
, PCB CONNECTION OPTIONAL
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT6118IDCB#PBF LT6118IDCB#TRPBF LGNT
8-Lead (2mm × 3mm) Plastic DFN
–40°C to 85°C
LT6118HDCB#PBF LT6118HDCB#TRPBF LGNT
8-Lead (2mm × 3mm) Plastic DFN
–40°C to 125°C
TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on lead based finish parts.
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/
LT6118
3
6118f
For more information www.linear.com/LT6118
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 12V, V
PULLUP
= V
+
, V
LE
= 2.7V, R
IN
= 100Ω,
R
OUT
= R1 + R2 = 10k, gain = 100, R
C
= 25.5k, C
L
= C
LC
= 2pF, unless otherwise noted. (See Figure 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
+
Supply Voltage Range
l
2.7 60 V
I
S
Supply Current (Note 4) V
+
= 2.7V, R
IN
= 1k, V
SENSE
= 5mV 450 µA
V
+
= 60V, R
IN
= 1k, V
SENSE
= 5mV
l
550 650
950
µA
µA
LE Pin Current V
LE
= 0V, V
+
= 60V –100 nA
V
IH
LE Pin Input High V
+
= 2.7V to 60V
l
1.5 V
V
IL
LE Pin Input Low V
+
= 2.7V to 60V
l
0.5 V
Current Sense Amplifier
V
OS
Input Offset Voltage V
SENSE
= 5mV
V
SENSE
= 5mV
l
–200
–300
200
300
µV
µV
∆V
OS
/∆T
Input Offset Voltage Drift V
SENSE
= 5mV
l
±0.8 µV/°C
I
B
Input Bias Current
(SENSELO, SENSEHI)
V
+
= 2.7V to 60V
l
60 300
350
nA
nA
I
OS
Input Offset Current V
+
= 2.7V to 60V ±5 nA
I
OUTA
Output Current (Note 5)
l
1 mA
PSRR Power Supply Rejection Ratio
(Note 6)
V
+
= 2.7V to 60V
l
120
114
127 dB
dB
CMRR Common Mode Rejection Ratio V
+
= 36V, V
SENSE
= 5mV, V
ICM
= 2.7V to 36V 125 dB
V
+
= 60V, V
SENSE
= 5mV, V
ICM
= 27V to 60V
l
110
103
125 dB
dB
V
SENSE(MAX)
Full-Scale Input Sense Voltage
(Note 5)
R
IN
= 500Ω
l
500 mV
Gain Error (Note 7) V
+
= 2.7V to 12V
V
+
= 12V to 60V, V
SENSE
= 5mV to 100mV, MS8 Package
V
+
= 12V to 60V, V
SENSE
= 5mV to 100mV, DFN Package
l
l
–0.2
–0.3
–0.08
0
0
%
%
%
SENSELO Voltage (Note 8)
V
+
= 2.7V, V
SENSE
= 100mV, R
OUT
= 2k
V
+
= 60V, V
SENSE
= 100mV
l
l
2.5
27
V
V
Output Swing High (V
+
to V
OUTA
) V
+
= 2.7V, V
SENSE
= 27mV
l
0.2 V
V
+
= 12V, V
SENSE
= 120mV
l
0.5 V
BW Signal Bandwidth I
OUT
= 1mA
I
OUT
= 100µA
1
140
MHz
kHz
t
r
Input Step Response (to 50% of
Final Output Voltage)
V
+
= 2.7V, V
SENSE
= 24mV Step, Output Rising Edge
V
+
= 12V to 60V, V
SENSE
= 100mV Step, Output Rising Edge
500
500
ns
ns
t
SETTLE
Settling Time to 1% V
SENSE
= 10mV to 100mV, R
OUT
= 2k 2 µs
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LT6118IMS8#TRPBF

Mfr. #:
Buy LT6118IMS8#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Current Sense Amplifiers Current Sense Amp, Comparator with Latch Enable and Reference
Lifecycle:
New from this manufacturer.
Delivery:
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