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Home ›  AA32 > ADM803LAKS-REEL7-ADM803MAKS-REEL7-ADM803SAKS-REEL7-ADM803TAKS-REEL7-ADM803TAKSZ-REEL7-ADM803ZAKS-REEL7-ADM809-5LART-REEL7-ADM809-5SAKS-REEL7-ADM810LART-REEL,Microprocessor Supervisory Circuit in 3-Lead SOT-23 & SC70, Active-High Push-Pull Output
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ADM803LAKS-REEL7 |ADM803LAKSREEL7ADN/a2900avaiMicroprocessor Supervisory Circuit in 3-Lead SC70, Active-Low Open-Drain Output
ADM803MAKS-REEL7 |ADM803MAKSREEL7ADIN/a500avaiMicroprocessor Supervisory Circuit in 3-Lead SC70, Active-Low Open-Drain Output
ADM803SAKS-REEL7 |ADM803SAKSREEL7ADN/a1400avaiMicroprocessor Supervisory Circuit in 3-Lead SC70, Active-Low Open-Drain Output
ADM803TAKS-REEL7 |ADM803TAKSREEL7ADN/a678avaiMicroprocessor Supervisory Circuit in 3-Lead SC70, Active-Low Open-Drain Output
ADM803TAKSZ-REEL7 |ADM803TAKSZREEL7ADN/a4147avaiMicroprocessor Supervisory Circuit in 3-Lead SC70, Active-Low Open-Drain Output
ADM803ZAKS-REEL7 |ADM803ZAKSREEL7ADIN/a450avaiMicroprocessor Supervisory Circuit in 3-Lead SC70, Active-Low Open-Drain Output
ADM809-5LART-REEL7 |ADM8095LARTREEL7ADN/a1851avaiMicroprocessor Supervisory Circuit in 3-Lead SOT-23 & SC70, Active-Low Push-Pull Output
ADM809-5LART-REEL7 |ADM8095LARTREEL7ADIN/a500avaiMicroprocessor Supervisory Circuit in 3-Lead SOT-23 & SC70, Active-Low Push-Pull Output
ADM809-5SAKS-REEL7 |ADM8095SAKSREEL7ADN/a213avaiMicroprocessor Supervisory Circuit in 3-Lead SOT-23 & SC70, Active-Low Push-Pull Output
ADM810LART-REEL |ADM810LARTREELADN/a12774avaiMicroprocessor Supervisory Circuit in 3-Lead SOT-23 & SC70, Active-High Push-Pull Output


ADM810LART-REEL ,Microprocessor Supervisory Circuit in 3-Lead SOT-23 & SC70, Active-High Push-Pull OutputMicroprocessor Supervisory Circuitsin 3-Lead SC70 and SOT-23ADM803/ADM809/ADM810
ADM810LART-REEL7 ,0.3-6V; 20mA; 320mW; microprocessor supervisory circuit. For microprocessor systems, computers, controllers, intelligent instruments, automotive systemsSPECIFICATIONS for T/S, 3 V for R Models unless otherwise noted.)Parameter Min Typ Max Units Test C ..
ADM810MART-REEL ,0.3-6V; 20mA; 320mW; microprocessor supervisory circuit. For microprocessor systems, computers, controllers, intelligent instruments, automotive systemsSPECIFICATIONS for T/S, 3 V for R Models unless otherwise noted.)Parameter Min Typ Max Units Test C ..
ADM810MART-REEL7 ,0.3-6V; 20mA; 320mW; microprocessor supervisory circuit. For microprocessor systems, computers, controllers, intelligent instruments, automotive systemsfeatures built-in glitch immunity,making it immune to fast transients on V .CCFigure 1. Typical Ope ..
ADM810RART-REEL7 ,0.3-6V; 20mA; 320mW; microprocessor supervisory circuit. For microprocessor systems, computers, controllers, intelligent instruments, automotive systemsGENERAL DESCRIPTIONThe ADM809/ADM810 supervisory circuits monitor theVpower supply voltage in micro ..
ADM810SART ,Microprocessor Supervisory Circuit in 3-Pin SOT-23SPECIFICATIONS for T/S, 3 V for R Models unless otherwise noted.)Parameter Min Typ Max Units Test C ..
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ADM803LAKS-REEL7-ADM803MAKS-REEL7-ADM803SAKS-REEL7-ADM803TAKS-REEL7-ADM803TAKSZ-REEL7-ADM803ZAKS-REEL7-ADM809-5LART-REEL7-ADM809-5SAKS-REEL7-ADM810LART-REEL
Microprocessor Supervisory Circuit in 3-Lead SC70, Active-Low Open-Drain Output
REV.C
Microprocessor Supervisory Circuits
in 3-Lead SC70 and SOT-23
FEATURES
Specified over Temperature
Low Power Consumption (17 �A)
Precision Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V Options
Reset Assertion Down to 1 V VCC
140 ms Min Power-On Reset
Open-Drain RESET Output (ADM803)
Push-Pull RESET Output (ADM809)
Push-Pull RESET Output (ADM810)
SC70 and SOT-23 Packages
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems
FUNCTIONAL BLOCK DIAGRAM

Figure 1.Typical Operating Circuit
GENERAL DESCRIPTION

The ADM803/ADM809/ADM810 supervisory circuits monitor
the power supply voltage in microprocessor systems. They pro-
vide a reset output during power-up, power-down, and brownout
conditions. On power-up, an internal timer holds reset asserted
for 240 ms. This holds the microprocessor in a reset state until
conditions have stabilized. The RESET output remains opera-
tional with VCC as low as 1 V. The ADM803 and ADM809
provide an active low reset signal (RESET), while the ADM810
provides an active high signal (RESET) output. The ADM809
and ADM810 have push-pull outputs whereas the ADM803 has
an open-drain output, which requires an external pull-up resistor.
Seven reset threshold voltage options are available, suitable for
monitoring a variety of supply voltages. Refer to Table I.
The reset comparator features built-in glitch immunity, making
it immune to fast transients on VCC.
The ADM803/ADM809/ADM810 consume only 17 µA, making
it suitable for low power portable equipment. The ADM803 is
available in a 3-lead SC70; the ADM809/ADM810 is available
in 3-lead SOT-23 and SC70 packages.
ADM803/ADM809/ADM810–SPECIFICATIONS (VCC = full operating range, TA = TMIN to TMAX,
VCC Typ = 5 V for L/M/J models, 3.3 V for T/S models, 3 V for R models, 2.5 V for Z models, unless otherwise noted.)

RESET OUTPUT VOLTAGE LOW
(ADM810)
RESET OUTPUT VOLTAGE HIGH
(ADM810)
PIN CONFIGURATIONABSOLUTE 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.
PIN CONFIGURATION

Figure 2.Power Fail Reset Timing
Table I.Reset Threshold Options

ADM8_T
ADM8_S
ADM8_R
*ADM809/ADM810 only.
PIN FUNCTION DESCRIPTIONS

3VCC
CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V 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.
ADM803/ADM809/ADM810
ORDERING GUIDE (ADM803 and ADM809)
ORDERING GUIDE (ADM810)
ADM803/ADM809/ADM810–Typical Performance Characteristics
TPC 1.Supply Current vs. Temperature (No Load)
TPC 2.Power-Down RESET Delay vs. Temperature
ADM8_L/M/J
TPC 3.Power-Down RESET Delay vs. Temperature
ADM8_T/S/R/Z
TPC 4.Power-Down RESET Delay vs. Temperature
ADM8_R
TPC 5.Normalized RESET Voltage Threshold vs.
Temperature
TPC 6.RESET Output Voltage vs. Supply Voltage
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