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MAX6807 Dataheets PDF



Part Number MAX6807
Manufacturers Maxim
Logo Maxim
Description Voltage Detectors
Datasheet MAX6807 DatasheetMAX6807 Datasheet (PDF)

19-1421; Rev 2; 4/01 Voltage Detectors General Description The MAX6806/MAX6807/MAX6808 precision voltage detectors are ideal for accurate monitoring of power supplies in digital systems. They provide circuit reliability and reduce total cost by eliminating external components and adjustments. The MAX6806/MAX6807/MAX6808 assert a reset signal whenever the supply voltage (V CC) falls below the factorypreset, ±2% accurate threshold. Internal hysteresis ensures stable switching. The MAX6806/MAX6807.

  MAX6807   MAX6807


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19-1421; Rev 2; 4/01 Voltage Detectors General Description The MAX6806/MAX6807/MAX6808 precision voltage detectors are ideal for accurate monitoring of power supplies in digital systems. They provide circuit reliability and reduce total cost by eliminating external components and adjustments. The MAX6806/MAX6807/MAX6808 assert a reset signal whenever the supply voltage (V CC) falls below the factorypreset, ±2% accurate threshold. Internal hysteresis ensures stable switching. The MAX6806/MAX6807/ MAX6808 are available in 4.6V and 2.6V thresholds (2.3V is also available for the MAX6806 only). The MAX6806 features an active-low, push-pull RESET output; the MAX6807 features an active-high, push-pull RESET output; and the MAX6808 features an active-low, open-drain RESET output. RESET is valid for V CC down to 1V (MAX6806/ MAX6808), and RESET (MAX6807) is guaranteed for V CC down to 1.2V. The MAX6806/MAX6807/MAX6808 are available in 3-pin SC70, 3-pin SOT23, 8-pin µMAX, 8-pin SO, and 4pin SOT143 packages. The SOT143 package includes a manual-reset input. Features o Preset Reset Thresholds: 4.6V and 2.6V (2.3V also available for MAX6806 only) o ±2% Accurate Reset Thresholds o Reset Output Available in Active-Low (MAX6806), Active-High (MAX6807), and Open-Drain (MAX6808) Versions o Immune to Power-Supply Transients o RESET Valid to VCC = 1.0V (MAX6806/MAX6808) o 35µA Supply Current o No External Components o Manual Reset Available with 4-Pin SOT143 Package o Miniature 3-Pin SC70, 3-Pin SOT23, and 4-Pin SOT143 Packages o 8 Lead µMAX and 8 Lead SO Packages are Pin Compatible with the MC33064/MC33164/ MC34064/MC34164 MAX6806/MAX6807/MAX6808 Applications Computers Controllers Intelligent Instruments Automotive Bar-Code Scanners Ordering Information PART MAX6806XR_ _ -T MAX6806UR_ _ -T MAX6806US_ _ -T MAX6806UA_ _ MAX6806SA_ _ MAX6807XR_ _ -T MAX6807UR_ _ -T MAX6807US_ _ -T TEMP. RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 3 SC70 3 SOT23 4 SOT143 8 µMAX 8 SO 3 SC70 3 SOT23 4 SOT143 8 µMAX 8 SO 3 SC70 3 SOT23 4 SOT143 8 µMAX 8 SO Critical µP and µC Power Monitoring Portable/Battery-Powered Equipment Selector Guide and Pin Configurations appear at end of data sheet. Typical Operating Circuit VCC VCC VCC MAX6807UA_ _ MAX6807SA_ _ MAX6808XR_ _ -T MAX6806 MAX6807 MAX6808 (RESET)/RESET RESET INPUT µP MAX6808UR_ _ -T MAX6808US_ _ -T MAX6808UA_ _ MAX6808SA_ _ GND GND * SOT23, SOT143, and SC70s are available in tape-and-reel only, 2500 piece minimum order quantity. Note: Insert the desired number from the Selector Guide into the blank to complete the part number. Also see Selector Guide for top mark for SOT23 1 ( ) ARE FOR MAX6807 ________________________________________________________________ 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. http://www.Datasheet4U.com/ Voltage Detectors MAX6806/MAX6807/MAX6808 ABSOLUTE MAXIMUM RATINGS VCC to GND ..........................................................-0.3V to +6.0V RESET, RESET to GND (MAX6806/MAX6807) ................................-0.3V to (VCC + 0.3V) RESET to GND (MAX6808)...................................-0.3V to + 6.0V MR to GND (SOT143 package only) ....................-0.3V to + 6.0V Input Current, VCC ...........................................................±20mA Output Current, RESET, RESET .......................................±20mA Rate of Rise, VCC ...........................................................100V/µs Continuous Power Dissipation (TA = +70°C) SOT23, SOT143 (derate 4mW/°C above +70°C) .........320mW SC70 (derate 2.17mW/°C above +70°C) .....................174mW µMAX (derate 4.5mW/°C above +70°C) ......................362mW SO (derate 5.9mW/°C above +70°C) ...........................471mW Operating Temperature Range ..........................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10s) .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (VCC = +5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Supply Voltage Range Supply Current SYMBOL VCC ICC CONDITIONS TA = 0°C to +70°C TA = -40°C to +85°C VCC = +3.6V, no load VCC = +5.5V, no load MAX680_ _ _46 Reset Threshold VTHTA = +25°C, VC.


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