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LT6703(HV)-2, LT6703(HV)-3 Datasheet

Linear Technology/Analog Devices

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Datasheet

LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
1
670323fd
Micropower Supply Voltage Monitor
APPLICATIONS
n Battery-Powered System Monitoring
n Threshold Detectors
n Window Comparators
n Relay Driving
n Industrial Control Systems
n Handheld Instruments
n Automotive Monitor and Controls
FEATURES DESCRIPTION
Micropower, Low Voltage
Comparator with
400mV Reference
The LT
®
6703-2/LT6703-3/LT6703HV-2/LT6703HV-3 com-
bine a micropower, low voltage comparator with a 400mV
reference in a tiny DFN package. Operating with supplies
from 1.4V up to 18V, these devices draw only 6.5μA, making
them ideal for low voltage system monitoring. Hysteresis
is included in the comparator, ensuring stable operation.
The comparator has one input available externally while
the other input is connected internally to the reference.
The comparator output is open collector and the output
load can be referred to any voltage up to 18V (36V for
LT6703HV) independent of supply voltage. The output
stage has a guaranteed current sink capability of more
than 5mA over temperature.
The two versions of this part differ by the polarity of the
available comparator input. The LT6703-2/LT6703HV-2
has an inverting input and the LT6703-3/LT6703HV-3 has
a noninverting input. Both versions are offered in com-
mercial, industrial and automotive temperature ranges.
n Internal 400mV Reference
n Total Threshold Error: ±1.25% Max at 25°C
n Wide Supply Range: 1.4V to 18V
n Input and Output Operate to 36V
n Specifi ed for –40°C to 125°C Temperature Range
n Low Quiescent Current: 6.5μA Typ at 5V
n Internal Hysteresis: 6.5mV Typ
n Low Input Bias Current: ±10nA Max
n Over-The-Top
®
Input also Includes Ground
n Open-Collector Output Allows Level Translation
n Choice of Input Polarities: LT6703-2/LT6703-3/
LT6703HV-2/LT6703HV-3
n Available in 2mm × 2mm DFN and
Low Profi le (1mm) SOT-23 (ThinSOT™) Packages
Rising Input Threshold Voltage vs Temperature
670323 TA01
+
400mV
REFERENCE
OUT
1MΩ
154k
0.1μF
1MΩ
VS
+IN
GND
VS
1.4V ≤ VIN ≤ 18V
(VTH = 3V)
LT6703-3
TEMPERATURE (°C)
–60 –40
RISING INPUT THRESHOLD VOLTAGE (mV)
400
401
402
100 120
670323 TA01b
399
398
–20 0 20406080
397
404
403
396
FOUR TYPICAL PARTS
VS = 5V
#1
#2
#3
#4
TYPICAL APPLICATION
L, LT, LTC, LTM, Linear Technology, the Linear logo and Over-The-Top 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.
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
2
670323fd
ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (VS to GND) ..........................18.5V
Input Voltage (+IN, –IN)
(Note 3) ....................................... 18.5V to (GND – 0.3V)
LT6703HV .................................. 40V to (GND – 0.3V)
Output Voltage (OUT) .................. 18.5V to (GND – 0.3V)
LT6703HV .................................. 40V to (GND – 0.3V)
Output Short-Circuit Duration (Note 2) ............ Indefi nite
Input Current (Note 3) ..........................................–10mA
(Note 1)
TOP VIEW
OUT
VS
–IN
DC PACKAGE
3-LEAD (2mm × 2mm) PLASTIC DFN
T
JMAX = 125°C, θJA = 102°C/W
EXPOSED PAD (PIN 4) IS GND, MUST BE SOLDERED TO PCB
4
3
2
1
TOP VIEW
OUT
VS
+IN
DC PACKAGE
3-LEAD (2mm × 2mm) PLASTIC DFN
T
JMAX = 125°C, θJA = 102°C/W
EXPOSED PAD (PIN 4) IS GND, MUST BE SOLDERED TO PCB
4
3
2
1
OUT 1
GND 2
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
–IN 3
5 NC
4 VS
TJMAX = 125°C, θJA = 250°C/W
OUT 1
GND 2
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
+IN 3
5 NC
4 VS
TJMAX = 125°C, θJA = 250°C/W
Operating Temperature Range (Note 4)
LT6703C-2/-3/LT6703HVC-2/-3 ...........40°C to 85°C
LT6703I-2/-3/LT6703HVI-2/-3 .............40°C to 85°C
LT6703H-2/-3/LT6703HVH-2/-3 ........40°C to 125°C
Specifi ed Temperature Range (Note 5)
LT6703C-2/-3/LT6703HVC-2/-3 .............. 0°C to 70°C
LT6703I-2/-3/LT6703HVI-2/-3 .............40°C to 85°C
LT6703H-2/-3/LT6703HVH-2/-3 ........40°C to 125°C
Maximum Junction Temperature........................... 125°C
Storage Temperature Range ...................65°C to 125°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
PIN CONFIGURATION
LT6703-2 LT6703-3
LT6703HV-2 LT6703HV-3
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
3
670323fd
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V 395 400 405 mV
VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V 387 393.5 400 mV
HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing 3.5 6.5 9.5 mV
IBInput Bias Current VS = 1.4V, 18V, VIN = VS
VS = 1.4V, VIN = 18V
VS = 1.4V, 18V, VIN = 0.1V
±0.01
±0.01
±4
±10
±10
±10
nA
nA
nA
VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA 70 200 mV
IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive
VS = 1.4V, VOUT = 18V, VIN = 40mV Overdrive
0.01
0.01
0.8
0.8
μA
μA
tPD(HL) High-to-Low Propagation Delay VS = 5V, 10mV Input Overdrive, RL = 10k,
VOL = 400mV
18 μs
tPD(LH) Low-to-High Propagation Delay VS = 5V, 10mV Input Overdrive, RL = 10k,
VOH = 0.9 • VS
29 μs
trOutput Rise Time VS = 5V, 10mV Input Overdrive, RL = 10k
VO = (0.1 to 0.9) • VS
2.2 μs
tfOutput Fall Time VS = 5V, 10mV Input Overdrive, RL = 10k
VO = (0.1 to 0.9) • VS
0.22 μs
ISSupply Current No Load Current, VS = 5V 6.5 11 μA
T
A = 25°C (LT6703-2/LT6703-3) unless otherwise specifi ed.
ELECTRICAL CHARACTERISTICS
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT6703CDC-2#TRMPBF LT6703CDC-2#TRPBF LCWP 3-Lead (2mm × 2mm) Plastic DFN 0°C to 70°C
LT6703IDC-2#TRMPBF LT6703IDC-2#TRPBF LCWP 3-Lead (2mm × 2mm) Plastic DFN 40°C to 85°C
LT6703HDC-2#TRMPBF LT6703HDC-2#TRPBF LCWP 3-Lead (2mm × 2mm) Plastic DFN 40°C to 125°C
LT6703CDC-3#TRMPBF LT6703CDC-3#TRPBF LCTW 3-Lead (2mm × 2mm) Plastic DFN 0°C to 70°C
LT6703IDC-3#TRMPBF LT6703IDC-3#TRPBF LCTW 3-Lead (2mm × 2mm) Plastic DFN 40°C to 85°C
LT6703HDC-3#TRMPBF LT6703HDC-3#TRPBF LCTW 3-Lead (2mm × 2mm) Plastic DFN 40°C to 125°C
LT6703HVCS5-2#TRMPBF LT6703HVCS5-2#TRPBF LTDMN 5-Lead Plastic TSOT-23 0°C to 70°C
LT6703HVIS5-2#TRMPBF LT6703HVIS5-2#TRPBF LTDMN 5-Lead Plastic TSOT-23 40°C to 85°C
LT6703HVHS5-2#TRMPBF LT6703HVHS5-2#TRPBF LTDMN 5-Lead Plastic TSOT-23 40°C to 125°C
LT6703HVCS5-3#TRMPBF LT6703HVCS5-3#TRPBF LTDMP 5-Lead Plastic TSOT-23 0°C to 70°C
LT6703HVIS5-3#TRMPBF LT6703HVIS5-3#TRPBF LTDMP 5-Lead Plastic TSOT-23 40°C to 85°C
LT6703HVHS5-3#TRMPBF LT6703HVHS5-3#TRPBF LTDMP 5-Lead Plastic TSOT-23 40°C to 125°C
TRM = 500 pieces. *Temperature grades are identifi ed by a label on the shipping container.
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ORDER INFORMATION
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
4
670323fd
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l392 410 mV
VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l382.5 404.5 mV
HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l2 13.5 mV
IBInput Bias Current VS = 1.4V, 18V, VIN = VS
VS = 1.4V, VIN = 18V
VS = 1.4V, 18V, VIN = 0.1V
l
l
l
±45
±45
±50
nA
nA
nA
VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l250 mV
IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive
VS = 1.4V, VOUT = 18V, VIN = 40mV Overdrive
l
l
1
1
μA
μA
ISSupply Current No Load Current, VS = 5V l17 μA
The l denotes the specifi cations which apply over the temperature range of –40°C ≤ TA ≤ 125°C, (LT6703H-2/LT6703H-3) unless
otherwise specifi ed (Notes 4, 5).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l392.5 407.5 mV
VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l384.5 402.5 mV
HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l311mV
IBInput Bias Current VS = 1.4V, 18V, VIN = VS
VS = 1.4V, VIN = 18V
VS = 1.4V, 18V, VIN = 0.1V
l
l
l
±15
±15
±15
nA
nA
nA
VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l250 mV
IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive
VS = 1.4V, VOUT = 18V, VIN = 40mV Overdrive
l
l
1
1
μA
μA
ISSupply Current No Load Current, VS = 5V l14 μA
The l denotes the specifi cations which apply over the temperature range of
0°C ≤ TA ≤ 70°C, (LT6703C-2/LT6703C-3) unless otherwise specifi ed (Notes 4, 5).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l392 408 mV
VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l383.5 403.5 mV
HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k , VO = 2V Swing l2 11.5 mV
IBInput Bias Current VS = 1.4V, 18V, VIN = VS
VS = 1.4V, VIN = 18V
VS = 1.4V, 18V, VIN = 0.1V
l
l
l
±15
±15
±15
nA
nA
nA
VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l250 mV
IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive
VS = 1.4V, VOUT = 18V, VIN = 40mV Overdrive
l
l
1
1
μA
μA
ISSupply Current No Load Current, VS = 5V l15 μA
The l denotes the specifi cations which apply over the temperature range of –40°C ≤ TA ≤ 85°C, (LT6703I-2/LT6703I-3) unless otherwise
specifi ed (Notes 4, 5).
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
5
670323fd
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V 395 400 405 mV
VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V 387 393.5 400 mV
HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing 3.5 6.5 9.5 mV
IBInput Bias Current VS = 1.4V, 18V, VIN = VS
VS = 1.4V, VIN = 18V, 36V
VS = 1.4V, 18V, VIN = 0.1V
±0.01
±0.01
±4
±10
±10
±10
nA
nA
nA
VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA 70 200 mV
IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive
VS = 18V, VOUT = 18V, (36V, RL = 100k), VIN = 40mV Overdrive
0.01
0.01
0.8
0.8
μA
μA
tPD(HL) High-to-Low Propagation Delay VS = 5V, 10mV Input Overdrive, RL = 10k,
VOL = 400mV
18 μs
tPD(LH) Low-to-High Propagation Delay VS = 5V, 10mV Input Overdrive, RL = 10k,
VOH = 0.9 • VS
29 μs
trOutput Rise Time VS = 5V, 10mV Input Overdrive, RL = 10k
VO = (0.1 to 0.9) • VS
2.2 μs
tfOutput Fall Time VS = 5V, 10mV Input Overdrive, RL = 10k
VO = (0.1 to 0.9) • VS
0.22 μs
ISSupply Current No Load Current, VS = 5V 6.5 11 μA
T
A = 25°C, (LT6703HV-2/LT6703HV-3) unless otherwise specifi ed.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l392.5 407.5 mV
VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l384.5 402.5 mV
HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l311mV
IBInput Bias Current VS = 1.4V, 18V, VIN = VS
VS = 1.4V, VIN = 18V, 36V
VS = 1.4V, 18V, VIN = 0.1V
l
l
l
±15
±15
±15
nA
nA
nA
VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l250 mV
IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive
VS = 18V, VOUT = 18V, (36V, RL = 100k), VIN = 40mV Overdrive
l
l
1
1
μA
μA
ISSupply Current No Load Current, VS = 5V l14 μA
The l denotes the specifi cations which apply over the temperature range of 0°C ≤ TA ≤ 70°C, (LT6703HVC-2/LT6703HVC-3) unless
otherwise specifi ed (Notes 4, 5).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l392 408 mV
VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l383.5 403.5 mV
HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l211.5mV
IBInput Bias Current VS = 1.4V, 18V, VIN = VS
VS = 1.4V, VIN = 18V, 36V
VS = 1.4V, 18V, VIN = 0.1V
l
l
l
±15
±15
±15
nA
nA
nA
The l denotes the specifi cations which apply over the temperature range of –40°C ≤ TA ≤ 85°C, (LT6703HVI-2/LT6703HVI-3) unless
otherwise specifi ed (Notes 4, 5).
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
6
670323fd
ELECTRICAL CHARACTERISTICS
OUT: Open-Collector Output of Comparator. This pin
provides drive for up to 40mA of load current. Off-state
voltage may be as high as 18V (36V for LT6703HV) above
GND, regardless of VS used.
GND: Ground. This pin is also the low side return of the
internal 400mV reference.
IN: External Input for Comparator. The voltage on this
pin can range from –0.3V to 18V (36V for LT6703HV)
with respect to GND regardless of VS used. The input is
noninverting for the LT6703-3/LT6703HV-3, and inverting
for the LT6703-2/LT6703HV-2. The other comparator input
is internally connected to the 400mV reference.
VS: Supply Voltage. The parts are characterized for opera-
tion with 1.4V ≤ VS ≤ 18V with respect to GND.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: A heat sink may be required to keep the junction temperature
below the absolute maximum rating when the output is shorted
indefi nitely.
Note 3: The inputs are protected by ESD diodes to the ground pin. If the
input voltage exceeds –0.3V below ground, the input current should be
limited to less than 10mA.
Note 4: The LT6703C-2/-3/LT6703HVC-2/-3, and LT6703I-2/-3/LT6703HVI-
2/-3 are guaranteed functional over the operating temperature range of
40°C to 85°C.
The LT6703H-2/-3/LT6703HVH-2/-3, is guaranteed functional over the
operating temperature range of –40°C to 125°C.
Note 5: The LT6703C-2/-3/LT6703HVC-2/-3, are guaranteed to meet the
specifi ed performance from 0°C to 70°C. The LT6703C-2/-3/LT6703HVC-
2/-3 are designed, characterized and expected to meet specifi ed
performance from –40°C to 85°C but are not tested or QA sampled at
these temperatures. The LT6703I-2/-3/LT6703HVI-2/-3, are guaranteed
to meet specifi ed performance from –40°C to 85°C. The LT6703H-2/-
3/LT6703HVH-2/-3, is guaranteed to meet specifi ed performance from
40°C to 125°C.
Note 6: VTH defi nes the threshold voltage of the comparator and combines
the effect of offset and reference accuracy.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VTH(R) Rising Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l392 410 mV
VTH(F) Falling Input Threshold Voltage (Note 6) RL = 100k, VO = 2V Swing, VS = 5V l382.5 404.5 mV
HYS HYS = VTH(R) – VTH(F) VS = 5V, RL = 100k, VO = 2V Swing l2 13.5 mV
IBInput Bias Current VS = 1.4V, 18V, VIN = VS
VS = 1.4V, VIN = 18V, 36V
VS = 1.4V, 18V, VIN = 0.1V
l
l
l
±45
±45
±50
nA
nA
nA
VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l250 mV
IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive
VS = 18V, VOUT = 18V, (36V, RL = 100k), VIN = 40mV Overdrive
l
l
1
1
μA
μA
ISSupply Current No Load Current, VS = 5V l17.0 μA
The l denotes the specifi cations which apply over the temperature range of –40°C ≤ TA ≤ 125°C, (LT6703HVH-2/LT6703HVH-3) unless
otherwise specifi ed (Notes 4, 5).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOL Output Low Voltage 10mV Input Overdrive, VS = 5V, IOUT = 5mA l250 mV
IOFF Output Leakage Current VS = 1.4V, 18V, VOUT = VS, VIN = 40mV Overdrive
VS = 18V, VOUT = 18V, (36V, RL = 100k), VIN = 40mV Overdrive
l
l
1
1
μA
μA
ISSupply Current No Load Current, VS = 5V l15 μA
The l denotes the specifi cations which apply over the temperature range of
–40°C ≤ TA ≤ 85°C, (LT6703HVI-2/LT6703HVI-3) unless otherwise specifi ed (Notes 4, 5).
PIN FUNCTIONS
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
7
670323fd
Distribution of Rising Input
Threshold Voltage
Distribution of Falling Input
Threshold Voltage Distribution of Hysteresis
Rising Input Threshold Voltage
vs Temperature
Rising Input Threshold Voltage
vs Temperature
Rising Input Threshold Voltage
vs Supply Voltage
PIN FUNCTIONS
+
400mV
REFERENCE
OUT
VS
–IN
GND
VS
LT6703-2
LT6703HV-2
670323 PF02 670323 PF03
+
400mV
REFERENCE
OUT
VS
+IN
GND
VS
LT6703-3
LT6703HV-3
TYPICAL PERFORMANCE CHARACTERISTICS
RISING INPUT THRESHOLD VOLTAGE (mV)
394 396 398 400 402 404 406
0
PERCENT OF UNITS (%)
2
6
8
10
18
670323 G01
4
12
14
16
VS = 5V
TA = 25°C
FALLING INPUT THRESHOLD VOLTAGE (mV)
388 390 392 394 396 398 400
0
PERCENT OF UNITS (%)
2
6
8
10
670323 G02
4
12
14
18
16
VS = 5V
TA = 25°C
HYSTERESIS (mV)
4 4.8 5.6 6.4 7.2 8 8.8
0
PERCENT OF UNITS (%)
2
6
8
10
670323 G03
4
12
14
16
18
20 VS = 5V
TA = 25°C
TEMPERATURE (°C)
–60 –40
RISING INPUT THRESHOLD VOLTAGE (mV)
400
401
402
100 120
670323 G04
399
398
–20 0 20406080
397
404
403
396
FOUR TYPICAL PARTS
VS = 5V
#1
#2
#3
#4
TEMPERATURE (°C)
–60 –40
RISING INPUT THRESHOLD VOLTAGE (mV)
401.0
401.5
402.0
100 120
670323 G05
400.5
400.0
–20 0 20406080
399.5
403.0
402.5
399.0
VS = 1.4V
VS = 5V
VS = 12V
VS = 18V
SUPPLY VOLTAGE (V)
RISING INPUT THRESHOLD VOLTAGE (mV)
401.0
401.5
402.0
670323 G06
400.5
400.0
24 1614 18
681012
399.5
403.0
402.5
399.0
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
8
670323fd
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current
vs Output Sink Current
Supply Current
vs Output Sink Current
Supply Current
vs Output Sink Current
Minimum Supply Voltage
Quiescent Supply Current
vs Supply Voltage Start-Up Supply Current
Hysteresis vs Temperature Hysteresis vs Temperature Hysteresis vs Supply Voltage
TEMPERATURE (°C)
–60 –40
HYSTERESIS (mV)
6
7
8
100 120
670323 G07
5
4
–20 0 20406080
3
10
9
2
FOUR TYPICAL PARTS
VS = 5V
#1
#2
#3
#4
TEMPERATURE (°C)
–60 –40
HYSTERESIS (mV)
6
7
8
100 120
670323 G08
5
4
–20 0 20406080
3
10
9
2
VS = 1.4V
VS = 5V
VS = 12V
VS = 18V
SUPPLY VOLTAGE (V)
HYSTERESIS (mV)
6
7
8
670323 G09
5
4
24 1614 18
681012
3
10
9
2
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
SUPPLY VOLTAGE (V)
–5
THRESHOLD SHIFT (mV)
–3
–1
1
–4
–2
0
1.3 1.7
670323 G10
1.91.10.9 1.5
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
SUPPLY VOLTAGE (V)
1.4 3.4
SUPPLY CURRENT (μA)
6
7
8
15.413.4 17.4
670323 G11
5
4
5.4 7.4 9.4 11.4
10
9
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
NO LOAD CURRENT
SUPPLY VOLTAGE (V)
0
SUPPLY CURRENT (μA)
30
40
50
0.8
670323 G12
20
10
00.2 0.4 0.6 1.0 1.2 1.4
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
OUTPUT SINK CURRENT (mA)
10
SUPPLY CURRENT (μA)
100
0.001 0.1 1 10
670323 G13
1
0.01
1000
100
TA = –40°C
V
S = 1.4V
V
S = 5V
V
S = 12V
V
S = 18V
OUTPUT SINK CURRENT (mA)
10
SUPPLY CURRENT (μA)
100
0.001 0.1 1 10
670323 G14
1
0.01
1000
100
TA = 25°C
V
S = 1.4V
V
S = 5V
V
S = 12V
V
S = 18V
OUTPUT SINK CURRENT (mA)
10
SUPPLY CURRENT (μA)
100
0.001 0.1 1 10
670323 G15
1
0.01
1000
100
TA = 85°C
V
S = 1.4V
V
S = 5V
V
S = 12V
V
S = 18V
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
9
670323fd
Below Ground Input Bias Current Low Level Input Bias Current High Level Input Bias Current
TYPICAL PERFORMANCE CHARACTERISTICS
Output Saturation Voltage
vs Output Sink Current
Output Saturation Voltage
vs Output Sink Current
Output Saturation Voltage
vs Output Sink Current
Output Short-Circuit Current Output Short-Circuit Current Output Leakage Current
INPUT VOLTAGE (V)
10
INPUT BIAS CURRENT (nA)
1000
10000
–0.3 –0.1 0
670323 G16
1
–0.2
100
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
VS = 18V
–0.3V < VIN < 0V
CURRENT IS GOING OUT OF THE DEVICE
INPUT VOLTAGE (V)
0
–7
INPUT BIAS CURRENT (nA)
–6
–4
–3
–2
3
0
0.2 0.4 0.5
670323 G17
–5
1
2
–1
0.1 0.3 0.6 0.7 10.90.8
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
VS = 18V
0V < VIN < 1V
CURRENT IS POSITIVE GOING
INTO THE DEVICE
INPUT VOLTAGE (V)
0.01
INPUT BIAS CURRENT (nA)
1
10
1 3 5 7 9 11 13 15 17
670323 G18
0.001
0.1
TA = 25°C
TA = 85°C
TA = 125°C
VS = 18V
VIN > 1V
CURRENT IS GOING INTO THE DEVICE
OUTPUT SINK CURRENT (mA)
OUTPUT SATURATION VOLTAGE (mV)
100
0.001 0.1 1 10
670323 G19
10
0.01
1000
100
TA = –40°C
V
S = 1.4V
V
S = 5V
V
S = 12V
V
S = 18V
OUTPUT SINK CURRENT (mA)
10
OUTPUT SATURATION VOLTAGE (mV)
100
0.001 0.1 1 10
670323 G20
0.01
1000
100
TA = 25°C
V
S = 1.4V
V
S = 5V
V
S = 12V
V
S = 18V
OUTPUT SINK CURRENT (mA)
10
OUTPUT SATURATION VOLTAGE (mV)
100
0.001 0.1 1 10
670323 G21
0.01
1000
100
TA = 85°C
V
S = 1.4V
V
S = 5V
V
S = 12V
V
S = 18V
OUTPUT VOLTAGE (V)
0
SHORT-CIRCUIT CURRENT (mA)
40
50
60
670323 G22
30
20
24 1614 18
681012
10
80
70
0
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
VS = 5V
OUTPUT VOLTAGE (V)
0
SHORT-CIRCUIT CURRENT (mA)
40
50
60
670323 G23
30
20
24 1614 18
681012
10
80
70
0
TA = 25°C
V
S = 1.4V
V
S = 5V
V
S = 12V
V
S = 18V
OUTPUT VOLTAGE (V)
0.01
OUTPUT LEAKAGE CURRENT (nA)
0.1
1
10
0 8 10 12 14 16
0.001
246 18
670323 G24
TA = 25°C
TA = 85°C
TA = 125°C
TA = –55°C
VS = 5V
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
10
670323fd
The LT6703-2/LT6703-3/LT6703HV-2/LT6703HV-3 devices
are micropower comparators with a built-in 400mV refer-
ence. Features include wide supply voltage range (1.4V to
18V), Over-The-Top input and output range, 2% accurate
rising input threshold voltage and 6.5mV typical built-in
hysteresis.
TYPICAL PERFORMANCE CHARACTERISTICS
Internal Reference
Each comparator has one input available externally. The two
versions of the part differ by the polarity of the available
input (i.e., inverting or noninverting). The other comparator
input is connected internally to the 400mV reference. The
rising input threshold voltage of the comparator is designed
to be equal to that of the reference (i.e., ≈400mV). The
reference voltage is established with respect to the device
GND connection.
Hysteresis
Each comparator has built-in 6.5mV (typical) of hysteresis
to simplify designs, to insure stable operation in the pres-
ence of noise at the inputs, and to reject supply rail noise
that might be induced by state change load transients. The
hysteresis is designed such that the falling input threshold
voltage is nominally 393.5mV. External positive feedback
circuitry can be employed to increase effective hysteresis
if desired, but such circuitry will provide an apparent effect
on both the rising and falling input thresholds (the actual
internal thresholds remain unaffected).
Figure 1. Additional Hysteresis Circuit
APPLICATIONS INFORMATION
Propagation Delay
vs Input Overdrive
Rise and Fall Times
vs Output Pull-Up Resistor
Noninverting and Inverting
Comparator Propagation Delay
INPUT OVERDRIVE (mV)
0
PROPAGATION DELAY (μs)
30
40
50
60
80
670323 G25
20
10
020 40 60 100
LH NONINV
HL NONINV
LH INV
HL INV
TA = 25°C
OUTPUT PULL-UP RESISTOR (kΩ)
0.1
0.01
RISE AND FALL TIME (μs)
1
100
1 10 100 1000
670323 G26
0.1
10
VS = 5V
CL = 20pF
TA = 25°C
RISE
FALL
670323 G27
VS= 5V
TA= 25°C
RLOAD = 10k CONNECTED TO VS
VIN(OVERDRIVE) = 10mV OVER THE INPUT
VOLTAGE THRESHOLDS
VO(NINV)
5V/DIV
DC
VO(INV)
5V/DIV
DC
VIN
10mV/DIV
AC
20μs/DIV
THRESHOLD EQUATIONS:
670323 F01
R4
OUT+IN
GND
VS
LT6703-3
R3
R2
R1
VIN VOUT
VIN (L TO H) = (400mV) • (R1) • + +
1
R1
1
R2
1
R3
VIN (H TO L) = (393mV) • (R1) • + +
1
R1
1
R2
1
R3 + R4
VS • R1
R3 + R4
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
11
670323fd
APPLICATIONS INFORMATION
Comparator Input
The comparator input can range from ground to 18V (36V
for LT6703HV), regardless of the supply voltage used. The
typical input current for inputs well above the threshold
(i.e., >800mV) is a few pA leaking into the input. With
decreasing input voltage, a small bias current begins
to be drawn out of the input, reaching a few nA when at
ground potential. The input may be forced 100mV below
ground without causing an improper output, though some
additional bias current will begin to fl ow from the ESD
input protection diode. Inputs driven further negative than
100mV below ground will not cause damage provided the
current is limited to 10mA.
Comparator Output
The comparator output is open collector and capable of
sinking 40mA typical. Load currents are directed out of
the GND pin of the part. The output off-state voltage may
range between –0.3V and 18V (36V for LT6703HV) with
respect to ground, regardless of the supply voltage used.
When the output high state bias voltage is above 18V, a
100k minimum pull-up resistor is required and no total load
capacitor greater than 100nF should be used. If the output
high state is above 18V, caution has to be taken to prevent
a short from the output directly to the bias voltage, even
if the output is in the off state. As with any open-collector
device, the outputs of multiple comparators may be tied
together to implement wire-AND logic functions.
Power Supplies
The comparator circuitry operates from a single 1.4V
to 18V supply. A minimum 0.1μF bypass capacitor is
required between the VS pin and GND. When an output
load is connected to the supply rail near the part and the
output is sinking more than 5mA, a 1μF bypass capacitor is
recommended. In instances where the supply is relatively
“soft” (such as with small batteries) and susceptible to
load steps, an additional 47Ω series decoupling resistor
can further improve isolation of supply transients from
the VS pin.
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
12
670323fd
DC Package
3-Lead Plastic DFN (2mm × 2mm)
(Reference LTC DWG # 05-08-1717 Rev A)
2.00 p0.10
(4 SIDES)
NOTE:
1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (W-TBD)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE
TOP AND BOTTOM OF PACKAGE
BOTTOM VIEW—EXPOSED PAD
1.00 p 0.05
(2 SIDES)
1.35 p 0.05
(2 SIDES)
0.75 p0.05
0.40 p0.10
0.70 p0.05
1
3
PIN 1 BAR
TOP MARK
(SEE NOTE 6)
0.200 REF
0.00 – 0.05
(DC3) DFN 0309 REV A
0.25 p 0.05
R = 0.05
TYP
R = 0.125 TYP
0.50 BSC
0.25 p 0.05
1.35 p0.05
(2 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
1.00 p0.05
(2 SIDES)
1.30 p0.05
2.00 p0.05 PACKAGE
OUTLINE
0.50 BSC
PIN 1 NOTCH
R = 0.20 OR
0.25 s 45o
CHAMFER
PACKAGE DESCRIPTION
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
13
670323fd
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.
S5 Package
5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635 Rev B)
1.50 – 1.75
(NOTE 4)
2.80 BSC
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
DATUM ‘A’
0.09 – 0.20
(NOTE 3) S5 TSOT-23 0302 REV B
PIN ONE
2.90 BSC
(NOTE 4)
0.95 BSC
1.90 BSC
0.80 0.90
1.00 MAX
0.01 – 0.10
0.20 BSC
0.30 – 0.50 REF
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
3.85 MAX
0.62
MAX
0.95
REF
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
1.4 MIN
2.62 REF
1.22 REF
PACKAGE DESCRIPTION
LT6703-2/LT6703-3
LT6703HV-2/LT6703HV-3
14
670323fd
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
LT 0609 REV D • PRINTED IN USA
TYPICAL APPLICATIONS
PART NUMBER DESCRIPTION COMMENTS
LT1017/LT1018 Micropower Dual Comparator 1.1V (Min) Supply Voltage, ±1.4mV (Max) Input Offset
LTC1441/LTC1442 Micropower Dual Comparator with 1% Reference 1.182 ±1% Reference, ±10mV (Max) Input Offset
LTC1998 Micropower Comparator for Battery Monitoring 2.5μA Typ Supply Current, Adjustable Threshold and Hysteresis
LT6700 Dual Micropower Comparator with 400mV Reference 1.4V to 18V Supply Voltage, 6.5μA Typical Supply Current
RELATED PARTS
LT6703-3
VS
1.8V
Level Translator
High Voltage to Low Voltage
15V
0V
1.8V
10k
0V
GND
+IN VOUT
OUT
VOUT
LT6703-3
VS
1.8V
Level Translator
Low Voltage to High Voltage
1.8V
15V
0V
15V
10k
0V
GND
+IN OUT
ILOAD
LT6703-2
VS
5V12V
Low Side Current Sense Alarm
LED
(ON IF ILOAD > 4A)
GND
–IN OUT
1k
LOAD
0.1Ω
RS
670323 TA02

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