ADM809

Features: Specified over TemperatureLow Power Consumption (17 A)Precision Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V OptionsReset Assertion Down to 1 V VCC140 ms Min Power-On ResetOpen-Drain RESET Output (ADM803)Push-Pull RESET Output (ADM809)Push-Pull RESET Output (ADM810)SC70 and SOT-23 PackagesAp...

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ADM809 Picture
SeekIC No. : 004276007 Detail

ADM809: Features: Specified over TemperatureLow Power Consumption (17 A)Precision Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V OptionsReset Assertion Down to 1 V VCC140 ms Min Power-On ResetOpen-Drain RESET Out...

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Part Number:
ADM809
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/28

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Product Details

Description



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





Application

Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems





Pinout

  Connection Diagram

ADM809 Diagram




Specifications

(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


# of Monitored Voltages 1
Backup-Battery Switch No
Manual Reset Capability No
Package SC70,SOT
Reset Threshold Summary 7 Options--2.32 to 4.63V
Reset Output-Stage Active-Low/Push-Pull
Min Reset Timeout (ms) 140
Watchdog Timer No





Description

The ADM803/ADM809/ADM810 supervisory circuits monitor the power supply voltage in microprocessor systems. ADM803/ADM809/ADM810 provides 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 operational with VCC as low as 1 V. The ADM803 and ADM809 provide an active low reset signal (RESET), while the ADM81 prvides an active high signal (RESET) output. The ADM803/ADM809/ADM810  have push-pull outputs whereas the ADM803 has an pen-drain output, which requires an external pull-up resistor.

Seven reset threshold voltage options are available, suitable for onitoring a variety of supply voltages. Refer to Table I.

The reset comparator features built-in glitch immunity, making t immune to fast transients on VCC.

The ADM803/ADM809/ADM810 consume only 17 µA, making it suitable for low power portable equipment. The ADM803 isavailable in a 3-lead SC70; the ADM809/ADM810 is availablein 3-lead SOT-23 and SC70 packages.






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