ADM803MAKS-REEL データシートの表示（PDF） - Analog Devices

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ADM803MAKS-REEL

Microprocessor Supervisory Circuits in 3-Lead SC70 and SOT-23

Analog Devices 

ADM803/ADM809/ADM810

ABSOLUTE MAXIMUM RATINGS*

(TA = 25°C, unless otherwise noted.)

VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V

RESET, RESET . . . . . . . . . . . . . . . . . . –0.3 V to VCC + 0.5 V

Input Current

VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA

Output Current

RESET, RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA

Rate of Rise, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 V/µs

␪JA Thermal Impedance, SC70 . . . . . . . . . . . . . . . . . 146°C/W

␪JA Thermal Impedance, SOT-23 . . . . . . . . . . . . . . . 270°C/W

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

Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215°C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C

Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C

*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.

Table I. Reset Threshold Options

RESET Model

ADM8_L

ADM8_M

ADM8_J*

ADM8_T

ADM8_S

ADM8_R

ADM8_Z

*ADM809/ADM810 only.

Threshold (V)

4.63

4.38

4.00

3.08

2.93

2.63

2.32

PIN CONFIGURATION

GND 1 ADM803/

ADM809/

ADM810

TOP VIEW

3 VCC

(Not to Scale)

RESET, RESET 2

PIN FUNCTION DESCRIPTIONS

Pin No. Mnemonic

Function

1

GND

0 V. Ground reference for all

signals.

2

RESET (ADM803/ Active Low Logic Output.

ADM809)

RESET remains low while VCC

is below the reset threshold and

remains low for 240 ms (typ)

after VCC rises above the reset

threshold.

2

RESET (ADM810) Active High Logic Output.

RESET remains high while VCC

is below the reset threshold and

remains high for 240 ms (typ)

after VCC rises above the reset

threshold.

3

VCC

Supply Voltage Being Moni-

tored.

VCC

RESET

VREF

VREF

t1

VREF

t1

VREF

t1 = RESET TIME = 240ms TYP

VREF = RESET VOLTAGE THRESHOLD

Figure 2. Power Fail Reset Timing

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection. Although the

ADM803/ADM809/ADM810 feature proprietary ESD protection circuitry, permanent damage may

occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions

are recommended to avoid performance degradation or loss of functionality.

REV. C

–3–

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