LTC1443/LTC1444/LTC1445

14

144345fe

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417



LINEAR TECHNOLOGY CORPORATION 1995

LT 0512 REV E • PRINTED IN USA

relaTeD parTs

Typical applicaTion

PART NUMBER

DESCRIPTION

COMMENTS

LTC1041

Bang-Bang Controller with 1nA Off Current

2.8V to 18V, Ideal for Temperature or Motor Control Circuit

LTC1042

Micropower, High Accuracy Window Comparator

Fault Detect, Go/No Go Test, Supply Monitor

LTC1440/LTC1540

Ultralow Power Comparator with Reference

1.128V ±1% Reference, ±10mV (Max) Input Offset

LTC1441/LTC1442

Dual Ultralow Power Comparators with Reference

1.182V ±1% Reference, 8µs Prop Delay, 5.7µA

LTC1541/LTC1542

Combined Amplifier, Comparator and Reference

1.2V ±0.8 Reference, Amplifier Stable with 1000pF Load

LTC1842/LTC1843

Dual Ultralow Power Comparators with Reference

1.182V ±1% Reference, 4µs, 3.5µA, Open-Drain Out

LTC1921

Dual Independent Monitors for –48V Supply and Fuse

–48V Telecom and Network Backplane Monitor

LTC1998

High Accuracy Comparator with 1.2V Reference

Adjustable Threshold and Hysteresis, 2.5mA Supply

Dual Comparators with 400mV Reference

1.4V to 18V Operation, 18µs Prop Delay,

Available in SOT-23 and 2mm

× 3mm DFN Packages

LT6703

Single Comparator with 400mV Reference

1.4V to 18V Operation, 6.5µA Supply Current,

Available in SOT-23 and 2mm

× 2mm DFN Packages

Single Cell to 5V Supply

NC

NC

3

6

7

5

4

11

10

3

1

4

6

2, 4

16

15

13

12

144345 TA03

7

5

1

2

3

14

8

REF

C2, C3: AUX TPSD107M010R0100 OR

SANYO OS-CON 16SA100M

R5

51k

5%

2

8

1

C2

100µF

C3

100µF

R8

732k

1%

R9

267k

1%

PWR GND

GND

SW

L1

10µH

SUMIDA

CD54-100

D1

1N5817

SEL

SENSE

SHDN

LT1300

Q1

MMFT2955ETI

C1

1µF

R10

3.37M

5%

R11

51k

5%

R12

51k

5%

–

+

C

1/4 LTC1444

–

+

A

1/4 LTC1444

–

+

D

1/4 LTC1444

C4

0.22µF

µP

NMI

RESET

R7

51k

5%

R2

82.5k

1%

R1

1.1M

5%

R3

1M

1%

1 CELL

LITHIUM-

ION

BATTERY

R4

2.4M

5%

R6

430

5%

LTC1444

REF

B

1/4 LTC1444

HYST

+

+

1.2V

9

+–