DatasheetsPDF.com

MAX802M

Maxim Integrated Products
Part Number MAX802M
Manufacturer Maxim Integrated Products
Description Microprocessor Supervisory Circuits
Published Feb 8, 2010
Detailed Description MAX690A/MAX692A/ MAX802L/MAX802M/ MAX805L Microprocessor Supervisory Circuits General Description The MAX690A/MAX692A/...
Datasheet PDF File MAX802M PDF File

MAX802M
MAX802M


Overview
MAX690A/MAX692A/ MAX802L/MAX802M/ MAX805L Microprocessor Supervisory Circuits General Description The MAX690A/MAX692A/MAX802L/MAX802M/MAX805L reduce the complexity and number of components required for power-supply monitoring and batterycontrol functions in microprocessor (μP) systems.
They significantly improve system reliability and accuracy compared to separate ICs or discrete components.
These parts provide four functions: 1) A reset output during power-up, power-down, and brownout conditions.
2) Battery-backup switching for CMOS RAM, CMOS μP, or other low-power logic.
3) A reset pulse if the optional watchdog timer has not been toggled within 1.
6s.
4) A 1.
25V threshold detector for power-fail warning or low-battery detection, or to monitor a power supply other than +5V.
The parts differ in their reset-voltage threshold levels and reset outputs.
The MAX690A/MAX802L/MAX805L generate a reset pulse when the supply voltage drops below 4.
65V, and the MAX692A/MAX802M generate a reset below 4.
40V.
The MAX802L/MAX802M guarantee power-fail accuracies to ±2%.
The MAX805L is the same as the MAX690A except that RESET is provided instead of RESET.
All parts are available in 8-pin DIP and SO packages.
The MAX690A/MAX802L are pin compatible with the MAX690 and MAX694.
The MAX692A/MAX802M are pin compatible with the MAX692.
Applications ●● Battery-Powered Computers and Controllers ●● Intelligent Instruments ●● Critical μP Power Monitoring Typical Operating Circuit UNREGULATED DC 0.
1µF R1 R2 3.
6V LITHIUM BATTERY REGULATED +5V VCC RESET PFI MAX690A PFO MAX802L WDI VBATT VOUT GND VCC RESET µP NMI I/O LINE GND BUS VCC CMOS RAM GND Features ●● Precision Supply Voltage Monitor: 4.
65V for MAX690A/MAX802L/MAX805L 4.
40V for MAX692A/MAX802M ●● Reset Time Delay: 200ms ●● Watchdog Timer: 1.
6s Timeout ●● Battery-Backup Power Switching ●● 200μA Quiescent Supply Current ●● 50nA Quiescent Supply Current in BatteryBackup Mode ●● Voltage Monitor for Power-Fail or Low-Battery War...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)