MAX813L

 MAX Package: Smallest 8-Pin SO
 Guaranteed RESET Valid at V_CC = 1V
Precision Supply-Voltage Monitor
      4.65V in MAX705/MAX707/MAX813L
      4.40V in MAX706/MAX708
 200ms Reset Pulse Width
Debounced TTL/CMOS-Compatible  Manual-Reset Input
Independent Watchdog Timer°(TM)1.6sec Timeou (MAX705/MAX706)
 Active-High Reset Output (MAX707/MAX708/MAX813L)
Voltage Monitor for Power-Fail or Low-Battery Warning

Terminal Voltage (with respect to GND) VCC............................. -0.3V to 6.0V
All Other Inputs (Note 1) ............................................ -0.3V to (VCC + 0.3V)
Input Current VCC................................................................................ 20mA
GND...................................................................................................... 20mA
Output Current (all outputs) ................................................................ 20mA
Continuous Power Dissipation
Plastic DIP(derate 9.09mW/ above +70....................................... 727mW
SO(derate 5.88mW/ above +70 .................................................. 471mW
PAMAX (derate 4.10mW/ above +70............................................ 330mW
CERDIP (derate 8.00mW/ above +70 .......................................... 640mW
Operating Temperature Ranges
MAX70_C__, MAX813LC__ ......................................................... 0 to +70
MAX70_E__, MAX813LE__ ........................................................-40 to+85
MAX70_MJA .............................................................................-55 to+125
Storage Temperature Range ..................................................-65 to+160
Lead Temperature (soldering, 10sec) ................................................ +300

The MAX705-MAX708/MAX813L microprocessor (PAP supervisory circuits reduce the complexity and number of components required to monitor power-supply and battery functions in PAP systems.  These devices signifi cantly improve system reliability and accuracy compared to separate ICs or discrete components.

The MAX705/MAX706/MAX813L provide four functions:
  1)A reset output during power-up, power-down, and brownout conditions.
  2)An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6   seconds.
  3)A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than +5V.
  4)An active-low manual-reset input.

The MAX707/MAX708 are the same as the MAX705/ MAX706, except an active-high reset is substituted for the watchdog timer.  The MAX813L is the same as the MAX705, except RESET is provided instead of RESET.

Two supply-voltage of MAX813L monitor levels are available:  The MAX705/MAX707/MAX813L generate a reset pulse when
the supply voltage drops below 4.65V, while the MAX706/MAX708 generate a reset pulse below 4.40V All four parts are available in 8-pin DIP, SO and PAMA packages.