下载
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
V
S
+IN
GND
V
S
1.4V ≤ V
IN
≤ 18V
(V
TH
= 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
V
S
= 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.
页面指南
