DS1815 datasheet(4/5 Pages) DALLAS

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DS1815

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ABSOLUTE MAXIMUM RATINGS*

Voltage on VCC Pin Relative to Ground

-0.5V to +7.0V

Voltage on RST Relative to Ground

-0.5V to +5VCC +0.5V

Operating Temperature

-40°C to +85°C

Storage Temperature

-55°C to +125°C

Soldering Temperature

260°C for 10 seconds

This is a stress rating only and functional operation of the device at these or any other conditions

above those indicated in the operation sections of this specification is not implied. Exposure to

absolute maximum rating conditions for extended periods of time may affect reliability.

RECOMMENDED DC OPERATING CONDITIONS

(-40

°C to +85°C)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Supply Voltage

VCC

0.0

5.5

DC ELECTRICAL CHARACTERISTICS

(-40

°C to +85°C; V

CC=1.2V to 5.5V)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Output Voltage @ -500

µA

VOH

VCC

-0.5V

VCC

-0.1V

Output Current @ 2.4 V

IOH

350

µA

Output Current @ 0.4 V

IOL

+10

Operating Current VCC < 5.5

ICC

µA

VCC Trip Point (DS1815-5)

VCCTP

2.98

3.06

3.15

VCC Trip Point (DS1815-10)

VCCTP

2.80

2.88

2.97

VCC Trip Point (DS1815-15)

VCCTP

2.47

2.55

2.64

Output Capacitance

COUT

AC ELECTRICAL CHARACTERISTICS

(-40

°C to +85°C; V

CC=1.2V to 5.5V)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

RESET Active Time

tRST

100

150

250

VCC Detect to RST

tRPD

µs

VCC Slew Rate

(VCCTP (MAX) to VCCTP (MIN))

300

µs

VCC Slew Rate

(VCCTP (MIN) to VCCTP (MAX))

0ns

VCC Detect to RST

tRPU

100

150

250

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