MAX819M

Features: Precision Supply-Voltage Monitor: 4.65V (MAX81_L) 4.40V (MAX81_M) 11A Quiescent Supply Current 200ms Reset Time Delay Watchdog Timer with 1.6sec Timeout (MAX817/MAX818) Battery-Backup Power Switching; Battery Voltage Can Exceed VCC Battery Freshness Seal On-Board, 3ns Gating of ...

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SeekIC No. : 004412229 Detail

MAX819M: Features: Precision Supply-Voltage Monitor: 4.65V (MAX81_L) 4.40V (MAX81_M) 11A Quiescent Supply Current 200ms Reset Time Delay Watchdog Timer with 1.6sec Timeout (MAX817/MAX818) Battery-Back...

floor Price/Ceiling Price

Part Number:
MAX819M
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: 2024/11/27

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Product Details

Description



Features:

Precision Supply-Voltage Monitor: 4.65V (MAX81_L) 4.40V (MAX81_M)
11A Quiescent Supply Current
200ms Reset Time Delay
Watchdog Timer with 1.6sec Timeout (MAX817/MAX818)
Battery-Backup Power Switching; Battery Voltage Can Exceed VCC
Battery Freshness Seal
On-Board, 3ns Gating of Chip-Enable Signals (MAX818)
Uncommitted Voltage Monitor for Power-Fail or Low-Battery Warning (MAX817/MAX819)
Manual Reset Input (MAX819)



Application

The MAX817/MAX818/MAX819 are protected for typical short-circuit conditions of 10sec or less. Shorting OUT to ground for longer than 10sec destroys the device. Decouple VCC, OUT, and BATT to ground by placing 0.1F capacitors as close to the device as possible.


Pinout

  Connection Diagram




Specifications

Input Voltage
    VCC, BATT .......................................................................-0.3V to +6.0V
    All Other Pins (Note 1).....................................................-0.3V to (VCC + 0.3V)
Input Current
    VCC Peak .........................................................................1A
    VCC Continuous ...............................................................250mA
    BATT Peak .......................................................................250mA
    BATT Continuous ............................................................50mA
   GND..................................................................................25mA
Output Current
   OUT..................................................................................250mA
   All Other Outputs ............................................................25mA
   OUT Short-Circuit Duration..............................................10sec
Continuous Power Dissipation (TA = +70°C)
   Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
   SO (derate 5.88mW/°C above +70°C)..........................471mW
   MAX (derate 4.10mW/°C above +70°C) .....................330mW
Operating Temperature Ranges
   MAX81_ _C_A ..................................................................0°C to +70°C
   MAX81_ _E_A .................................................................-40°C to +85°C
   Storage Temperature Range ..........................................-65°C to +160°C
   Lead Temperature (soldering, 10sec) .............................+300°C



Description

The MAX819M microprocessor (P) supervisory circuits simplify power-supply monitoring, battery control, and chip-enable gating in P systems by reducing the number of components required. These MAX819M are designed for use in +5V-powered systems. Low supply current (11A typical) and small package size make these devices ideal for portable applications. The MAX819M are specifically designed to ignore fast transients on VCC. Other supervisory functions include active-low reset, backupbattery switchover, watchdog input, battery freshness seal, and chip-enable gating. The Selector Guide below lists the specific functions available from each device.

These MAX819M offer two pretrimmed reset threshold voltages for ±5% or ±10% power supplies: 4.65V for the L versions and 4.40V for the M versions. The MAX819M are available in space-saving MAX packages, as well as 8-pin DIP/SO.




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