ADM9690

–3–

REV. A

ABSOLUTE MAXIMUM RATINGS*

°C unless otherwise noted)

Input Current

GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA

Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . 200 mA

Power Dissipation, R-8 SOIC . . . . . . . . . . . . . . . . . . 400 mW

Industrial (A Version) . . . . . . . . . . . . . . . . . . –40

°C to +85°C

Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . +300

°C

Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . +215

°C

Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . +220

°C

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

°C to +150°C

ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 kV

*Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent damage to the device. This is a stress rating only; functional operation of the

device at these or any other conditions above those listed in the operational sections

of this specification is not implied. Exposure to absolute maximum ratings for

extended periods of time may affect device reliability.

ORDERING GUIDE

Temperature

Package

Package

Model

Range

Description

Option

ADM9690AR

–40

°C to +85°C

8-Lead Narrow

SO-8

Body SOIC

PIN FUNCTION DESCRIPTIONS

Mnemonic

Function

Power Supply Input; +5 V.

Voltage Monitoring Input.

GND

0 V. Ground reference for all signals.

RESET(1)

falls below the Reset Threshold or the Watch-

dog timer is not serviced within its timeout

period. The reset threshold is typically 4.4 V

for the ADM9690. RESET(1) remains low

old. RESET(1) also goes low for 50 ms if the

Watchdog Timer is not serviced within its

timeout period.

RESET(2)

Logic Output. RESET(2) goes low simulta-

neously with RESET(1) but remains low for

an additional 10 ms.

WDI

Watchdog Input. If an edge is not detected on

WDI within the selectable watchdog timeout

period, RESET(1) and RESET(2) are forced

low for their respective timeout periods. The

watchdog timer restarts with each positive

or negative going transition on the WDI

line. Following a reset it is restarted when

RESET(1) goes inactive (high). The Watch-

dog Timer may be disabled if WDI is left

floating or is driven to midsupply.

SEL1, 2

Watchdog Timeout selection inputs. Refer to

Table I.

PIN CONFIGURATION

1

2

3

4

8

7

6

5

TOP VIEW

(Not to Scale)

ADM9690

WDI

GND

SEL1

SEL2

RESET(1)

RESET(2)