MAX805LC/D Maxim Integrated, MAX805LC/D Datasheet
MAX805LC/D
Specifications of MAX805LC/D
Related parts for MAX805LC/D
MAX805LC/D Summary of contents
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... LITHIUM V OUT GND BATTERY MAX690A MAX802L ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ___________________________Features ♦ Precision Supply-Voltage Monitor: 4.65V for MAX690A/MAX802L/MAX805L 4.40V for MAX692A/MAX802M ♦ Reset Time Delay – 200ms ♦ ...
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... Microprocessor Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND -0. -0.3V to 6.0V BATT All Other Inputs (Note -0. Input Current 200mA 50mA BATT GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA Output Current Short-Circuit Protected for up to 10sec OUT All Other Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA Note 1: The input voltage limits on PFI and WDI may be exceeded if the current into these pins is limited to less than 10mA. ...
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... Microprocessor Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued 4.75V to 5.5V for MAX690A/MAX802L/MAX805L unless otherwise noted.) A MIN MAX PARAMETER RESET Output Voltage Watchdog Timeout WDI Pulse Width WDI Input Threshold (Note 4) WDI Input Current PFI Input Threshold PFI Input Current PFO Output Voltage ...
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... Microprocessor Supervisory Circuits __________________________________________Typical Operating Characteristics OUTPUT VOLTAGE vs. LOAD CURRENT 5. + +2.8V BATT 4. +25°C A 4.90 4.85 SLOPE = 5Ω 4.80 4. (mA) OUT MAX690A RESET RESPONSE TIME + + +25° 10k RESET RESET RESET 30pF GND 0V 2µs/div ...
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... Microprocessor Supervisory Circuits ______________________________________________________________Pin Description PIN MAX690A/MAX692A MAX805L MAX802L/MAX802M – _______________________________________________________________________________________ NAME Supply Output for CMOS RAM. When V V connects to V through a P-channel MOSFET switch. When V OUT CC V OUT is below the reset threshold, the higher of V connected to V ...
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... Microprocessor Supervisory Circuits V BATT BATTERY-SWITCHOVER CIRCUITRY V CC 3.5V 1.25V WATCHDOG WDI TIMER MAX690A MAX692A 0.8V MAX802L MAX802M PFI MAX805L 1.25V GND ( ) ARE FOR MAX805L ONLY. Figure 1. Block Diagram _______________Detailed Description A microprocessor’s (µP’s) reset input starts the µ known state. When the µ unknown state, it should be held in reset ...
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... Microprocessor Supervisory Circuits V BATT SW1 SW2 D1 D2 SUBSTRATE MAX690A MAX805L MAX802L D3 MAX692A MAX802M V OUT CONDITION SW1/SW2 V > Reset Threshold Open CC V < Reset Threshold and CC Open V > BATT V < Reset Threshold and CC Closed V < BATT RESET THRESHOLD = 4.65V IN MAX690A/MAX802L/MAX805L. RESET THRESHOLD = 4.4V IN MAX692A/MAX802M Figure 3 ...
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... Microprocessor Supervisory Circuits + OUT CC MAX692A MAX802M RESET V BATT + 100k 0.1F GND Figure 5. Using a SuperCap™ Backup Power Source with the MAX692A/MAX802M and a +5V ±10% Supply When V connects backup mode is activat- BATT OUT ed and the internal circuitry is powered from the battery (Table 1) ...
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... Microprocessor Supervisory Circuits no additional circuitry (see the Typical Operating Circuit). However, batteries with open-circuit voltages that are greater cannot be used for backup, as current is sourced into the substrate through the diode (D1 in Figure 3) when V is close to the reset threshold. CC Without a Backup Power Source ...
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... Microprocessor Supervisory Circuits BUFFERED RESET TO OTHER SYSTEM COMPONENTS V CC MAX690A 4.7k MAX692A RESET MAX802L MAX802M GND Figure 8. Interfacing to µPs with Bidirectional Reset I/O 10 ______________________________________________________________________________________ V CC RESET GND ...
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... Supervisory Circuits Manual- Watch- Low- Active- Battery- Reset dog Line High Input Output Output Reset ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ...
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... MAX802MCSA 0°C to +70°C MAX802MEPA -40°C to +85°C MAX802MESA -40°C to +85°C MAX805LCPA 0°C to +70°C MAX805LCSA 0°C to +70°C MAX805LC/D 0°C to +70°C MAX805LEPA -40°C to +85°C MAX805LESA -40°C to +85°C MAX805LMJA -55°C to +125°C * Dice are specified +25°C. ...