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LT6119IMS-1#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28
LT6119-1/LT6119-2
1
611912f
For more information www.linear.com/LT6119-1
Typical applicaTion
FeaTures DescripTion
Current Sense Amplifier,
Reference and Comparators
with POR
The LT
®
6119 is a complete high side current sense device
that incorporates a precision current sense amplifier, an
integrated voltage reference and two latching comparators.
Tw o versions of the LT6119 are available. The LT6119-1
has the comparators connected in opposing polarity and
the LT6119-2 has the comparators connected in the same
polarity. The comparator latch functionality can be enabled
or disabled and the comparators can be configured to reset
upon power-on. The input and the open-drain outputs of
the comparators are independent from the current sense
amplifier. The comparator trip points and amplifier gain
are configured with external resistors.
The overall propagation delay of the LT6119 is typically
only 1.4µs, allowing for quick reaction to overcurrent and
undercurrent conditions. The 1MHz bandwidth allows the
LT6119 to be used for error detection in critical applica
-
tions such as motor control. The high threshold accuracy
of
the comparators, combined with the ability to latch
both comparators, ensures the LT6119 can capture high
speed events.
The LT6119 is fully specified for operation from –40°C
to 125°C, making it suitable for industrial and automo-
tive applications
.
The LT6119 is available in a small
10-lead MSOP.
Fast Acting Fault Protection with Power-On Reset and Early Warning
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 Latching Comparators
–
Power-On Reset Capability
–
Fast Response Time: 500ns
–
Total Threshold Error: ±1.25% Maximum
–
Tw o Comparator Polarity Options
n
Wide Supply Range: 2.7V to 60V
n
Supply Current: 550µA
n
Specified for –40°C to 125°C Temperature Range
n
Available in 10-Lead MSOP Package
n
Overcurrent, Undercurrent and Fault Detection
n
Current Shunt Measurement
n
Battery Monitoring
n
Motor Control
n
Automotive Monitoring and Control
n
Industrial Control
L, LT , LT C , LT M , 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
LT6119-2
INC2
INC12N2700
100mA WARNING
250mA DISCONNECT
*CMH25234B
V
+
LE
OUTC1
OUTC2
V
–
0.1Ω
IRF9640
3.3V
6.2V*
12V
100Ω
6.04k
100k
1.62k10k
1k
1k
0.1µF
V
OUT
2.37k
1.6k
611912 TA01a
TO LOAD
24.9k
100nF
5µs/DIV
V
LOAD
10V/DIV
V
OUTC1
5V/DIV
I
LOAD
200mA/DIV
0V
0V
V
OUTC2
5V/DIV
0V
0mA
611912 TA01b
250mA DISCONNECT
100mA WARNING
LT6119-1/LT6119-2
2
611912f
For more information www.linear.com/LT6119-1
pin conFiguraTionabsoluTe 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
Amplifier Output Short-Circuit Duration (to V
–
) .. Indefinite
Operating Temperature Range (Note 3)
LT6119I ................................................ –40°C to 85°C
LT6119H ............................................. –40°C to 125°C
Specified Temperature Range (Note 3)
LT6119I ................................................ –40°C to 85°C
LT6119H ............................................. –40°C to 125°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ...................300°C
(Note 1)
1
2
3
4
5
SENSELO
LE
OUTC2
OUTC1
V
–
10
9
8
7
6
SENSEHI
V
+
OUTA
INC2
INC1
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
θ
JA
= 160°C/W, θ
JC
= 45°C/W
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT6119IMS-1#PBF LT6119IMS-1#TRPBF LTGNV 10-Lead Plastic MSOP –40°C to 85°C
LT6119HMS-1#PBF LT6119HMS-1#TRPBF LTGNV 10-Lead Plastic MSOP –40°C to 125°C
LT6119IMS-2#PBF LT6119IMS-2#TRPBF LTGNW 10-Lead Plastic MSOP –40°C to 85°C
LT6119HMS-2#PBF LT6119HMS-2#TRPBF LTGNW 10-Lead Plastic MSOP –40°C to 125°C
Consult LT C Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LT C 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/
LT6119-1/LT6119-2
3
611912f
For more information www.linear.com/LT6119-1
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 + R3 = 10k, gain = 100, R
C
= 25.5k, C
L
= C
LC
= 2pF, unless otherwise noted. (See Figure 3)
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 475 µA
V
+
= 60V, R
IN
= 1k, V
SENSE
= 5mV
l
600 700
1000
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
l
–0.2
–0.08
0
%
%
SENSELO V
oltage (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
Reference and Comparator
V
TH(R)
(Note 9)
Rising Input Threshold Voltage
(LT6119-1 Comparator 1
LT6119-2 Both Comparators)
V
+
= 2.7V to 60V
l
395 400 405 mV
V
TH(F)
(Note 9)
Falling Input Threshold Voltage
(LT6119-1 Comparator 2)
V
+
= 2.7V to 60V
l
395 400 405 mV
V
HYS
V
HYS
= V
TH(R)
– V
TH(F)
V
+
= 2.7V to 60V 3 10 15 mV
Comparator Input Bias Current V
INC1,2
= 0V, V
+
= 60V
l
–50 nA
V
OL
Output Low Voltage I
OUTC1,C2
= 500µA, V
+
= 2.7V
l
60 150
220
mV
mV
High to Low Propagation Delay
5mV Overdrive
100mV Overdrive
3
0.5
µs
µs
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LT6119IMS-1#PBF

Mfr. #:
Buy LT6119IMS-1#PBF
Manufacturer:
Analog Devices Inc.
Description:
Current Sense Amplifiers Current Sense Amp, Comparator with Latch Enable and Reference
Lifecycle:
New from this manufacturer.
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