LTC1842_15 datasheet(2/12 Pages) LINER

Part #	LTC1842

Description	Ultralow Power Dual Comparators with Reference

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Manufacturer	LINER [Linear Technology]

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LTC1841/LTC1842/LTC1843

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Voltage

V + to V – ................................................12V to – 0.3V

IN +, IN –, HYST ................. (V + + 0.3V) to (V – – 0.3V)

REF ................................... (V + + 0.3V) to (V – – 0.3V)

OUT ................................................ 12V to (V – – 0.3V)

Current

IN +, IN –, HYST ................................................. 20mA

REF ................................................................... 20mA

OUT .................................................................. 50mA

OUT Short-Circuit Duration (V +

≤ 5.5V) ...... Continuous

Power Dissipation ............................................. 500mW

Operating Temperature Range

LTC1841C/LTC1842C/LTC1843C ........... 0

°C to 70°C

LTC1841I/LTC1842I/LTC1843I .......... – 40

°C to 85°C

Storage Temperature Range ................ – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

PACKAGE/ORDER INFORMATION

1

2

3

4

8

7

6

5

TOP VIEW

OUT A

V –

IN A+

IN A–

OUT B

V +

IN B+

IN B–

S8 PACKAGE

8-LEAD PLASTIC SO

1841

1841I

S8 PART

MARKING

1

2

3

4

8

7

6

5

TOP VIEW

OUT A

V–

IN A+

IN B+

OUT B

V+

REF

HYST

S8 PACKAGE

8-LEAD PLASTIC SO

1

2

3

4

8

7

6

5

TOP VIEW

OUT A

V–

IN A+

IN B–

OUT B

V+

REF

HYST

S8 PACKAGE

8-LEAD PLASTIC SO

TJMAX = 150°C, θJA = 125°C/ W

ORDER PART

NUMBER

LTC1841CS8

LTC1841IS8

S8 PART

MARKING

ORDER PART

NUMBER

S8 PART

MARKING

1842

1842I

LTC1842CS8

LTC1842IS8

ORDER PART

NUMBER

LTC1843CS8

LTC1843IS8

1843

1843I

ELECTRICAL CHARACTERISTICS V+ = 5V, V– = 0V, TA = 25°C unless otherwise noted.

Consult factory for Military grade parts.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Supply

V +

Supply Voltage Range

LTC1841

q

2.0

11

V

LTC1842/LTC1843

q

2.5

11

V

ICC

Supply Current

HYST = REF (Note 2)

q

3.5

5.7

µA

Comparator

VOS

Comparator Input Offset Voltage

(Note 3)

q

±3

±10

mV

IIN

Input Leakage Current (IN +, IN –)IN + = IN – = 2.5V (LTC1841),

q

±0.01

±1.0

nA

IN + = IN – = VREF (LTC1842/LTC1843)

VIN

Comparator Input Voltage Range

q

V –

V + – 1.3V

V

PSRR

Power Supply Rejection Ratio

V + = 2V to 11V (LTC1841),

0.1

1

mV/V

V + = 2.5V to 11V (LTC1842/LTC1843)

CMRR

Common Mode Rejection Ratio

VCM = V– to (V+ – 1.3V) LTC1841

q

0.1

1

mV/V

VHYST

Hysteresis Input Voltage Range

LTC1842/LTC1843

q

VREF – 50mV

VREF

V

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