2

LTC699

A

G

A

U

A

R

BSOLUTEXI

TI

S

Terminal Voltage

RESET Output ...................................... – 0.3V to 6V

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

Operating Temperature Range

LTC699C .............................................. 0

°C to 70°C

LTC699I ........................................... –40

°C to 85°C

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

°C to 150°C

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

°C

1

2

3

4

5

6

7

8

TOP VIEW

WDI

GND

GND

LTC699

NC

RESET

N8 PACKAGE

8-LEAD PLASTIC DIP

GND

1

2

3

4

5

6

7

8

TOP VIEW

GND

NC

GND

GND

S8 PACKAGE

8-LEAD PLASTIC SOIC

WDI

RESET

LTC699

LTC699CN8

LTC699IN8

LTC699CS8

LTC699IS8

ORDER PART

NUMBER

(Notes 1 and 2)

PACKAGE/ORDER I FOR ATIO

PARAMETER

CONDITONS

MIN

TYP

MAX

UNITS

Operating Voltage Range

q

3.0

5.5

V

Supply Current

0.6

1.5

mA

q

0.6

2.5

Power Down Reset Assertion

q

4.5

4.65

4.75

V

Power Up Reset De-Assertion

q

4.75

V

Reset Threshold Hysteresis

40

mV

Reset Active Time

160

200

240

ms

q

140

200

280

Watchdog Time-out Period

1.2

1.6

2.0

sec

q

1.0

1.6

2.25

Reset Active Time PSRR

1

ms/V

Watchdog Time-out Period PSRR

8

ms/V

Minimum WDI Input Pulse Width

q

200

ns

4

200

mV

RESET output Voltage

0.4

V

RESET Output Short Circuit Current

Output Sink Current

25

mA

WDI Input Threshold

Logic Low

0.8

V

Logic High

2.0

WDI Input Current

q

450

µA

WDI = 0V

q

–50

–8

ELECTRICAL C

C

HARA TERISTICS

Note 2: All voltage values are with respect to GND.

Note 3: RESET is active low, open drain output.

range.

Note 1: Absolute maximum ratings are those values beyond which the life

of device may be impaired.