LT6700HDCB-1-TRPBF datasheet, PDF

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LT6700HDCB-1-TRPBF: DescriptionMicropower, Low Voltage, Dual Comparator with 400mV Reference; File Size276KB，20 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LT6700HDCB-1-TRPBF Overview

Micropower, Low Voltage, Dual Comparator with 400mV Reference

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FeaTures

LT6700/LT6700HV

Micropower, Low Voltage,

Dual Comparator with

400mV Reference

DescripTion

The LT

6700/LT6700HV combine two micropower, low

voltage comparators with a 400mV reference in a 6-lead

SOT-23 or 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 comparators, easing design requirements

to insure stable output operation.

The comparators each have one input available externally;

the other inputs are connected internally to the reference.

The comparator outputs are open collector and the output

load can be referred to any voltage up to 18V (36V for

LT6700HV), independent of supply voltage. The output

stage sinking capability is guaranteed to be greater than

5mA over temperature.

The three versions of this part differ by the polar-

ity of the available comparator inputs. The LT6700-1/

LT6700HV-1 has one inverting input and one noninvert-

ing input, making it suitable for use as a window com-

parator. The LT6700-2/LT6700HV-2 has two inverting

inputs and the LT6700-3/LT6700HV-3 has two nonin-

verting inputs. All versions are offered in commercial,

industrial and automotive temperature ranges.

LT, LTC, LTM, Linear Technology, the Linear logo and Over-The-Top are registered

trademarks and ThinSOT and PowerPath are trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Internal 400mV Reference

Total Threshold Error: ±1.25% Max at 25°C

Inputs and Outputs Operate to 36V

Wide Supply Range: 1.4V to 18V

Specified for –55°C to 125°C Temperature Range

Low Quiescent Current: 6.5µA Typ at 5V

Internal Hysteresis: 6.5mV Typ

Low Input Bias Current: ±10nA Max

Over-The-Top

Input also Includes Ground

Open-Collector Outputs Allow Level Translation

Choice of Input Polarities: LT6700-1/LT6700-2/

LT6700-3/LT6700HV-1/LT6700HV-2/LT6700HV-3

Available in Low Profile (1mm) SOT-23 (ThinSOT™)

and 2mm

3mm DFN Packages

applicaTions

Battery-Powered System Monitoring

Threshold Detectors

Window Comparators

Relay Driving

Industrial Control Systems

Handheld Instruments

Automotive Monitor and Controls

Typical applicaTion

Micropower Battery Monitor

LT6700-3

COMP B

THRESHOLD VOLTAGE (mV)

BATT

> 1.6V

63.4k

BATT

1.4V (MIN)

3V (NOM)

Comparator Thresholds

vs Temperature

406

404

402

400

398

396

394

TWO TYPICAL PARTS

392 COMP A AND B

= 5V

390

–60 –40 –20 0 20 40 60 80 100 120

TEMPERATURE (°C)

6700123 TA02

0.1µF

#1A

#1B

#2A

#2B

RISING INPUT

ALKALINE

AA CELLS

–

= 400mV

REFERENCE

FALLING INPUT

–

261k

COMP A

BATT

> 2V

MONITOR CONSUMES ~10µA

HYSTERESIS IS APPROXIMATELY

2% OF TRIP VOLTAGE

6700123 TA01

6700123fg

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