MAX6740XKZGD3+T Maxim Integrated, MAX6740XKZGD3+T Datasheet
MAX6740XKZGD3+T
Specifications of MAX6740XKZGD3+T
Related parts for MAX6740XKZGD3+T
MAX6740XKZGD3+T Summary of contents
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... MAX6737 2 fixed MAX6738 1 fixed, 1 adj *Manual reset detect on RESET output. ________________________________________________________________ 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. Supervisory Circuits ♦ Dual-/Triple-Supply Reset Voltage Monitors ♦ Precision Factory-Set Reset Thresholds for Monitoring from 0.9V to 5.0V ♦ ...
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... Low-Power Dual-/Triple-Voltage SC70 µP Supervisory Circuits ABSOLUTE MAXIMUM RATINGS POK1 to GND ......................................-0. Open-Drain RESET, PFO to GND.............................-0.3V to +6V Push-Pull RESET to GND..........................-0. MR, RSTIN, PFI to GND............................-0. Input/Output Current, All Pins .............................................20mA Continuous Power Dissipation (T = +70°C) A 5-Pin SC70 (derate 3.1mW/°C above +70°C) ..............247mW Stresses beyond those listed under “ ...
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... SYMBOL Reset Threshold for RSTIN Threshold (MAX6738/ V MAX6739/MAX6740/MAX6743) RSTIN Input Current Reset Threshold Hysteresis RESET, POK1 Output Low RESET Output High (Push-Pull) _______________________________________________________________________________________ Supervisory Circuits CONDITIONS T = 0°C to +85°C A MAX67_ -40°C to +85° 0°C to +85°C A MAX67_ -40° ...
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... Low-Power Dual-/Triple-Voltage SC70 µP Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued 1.2V to 5.5V -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL RESET Output Open-Drain Leakage Current I (MAX6736/MAX6738) POK1 Output Open-Drain Leakage V Reset Delay CC V Reset Timeout Period ...
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... TOTAL -40 - TEMPERATURE (°C) _______________________________________________________________________________________ Supervisory Circuits CONDITIONS T = 0°C to +85° TH-PFI T = -40°C to +85°C A ≥ 0.1V (Note PFI PFI 1 ≥ 1.53V 500µA CC SINK 1 ≥ 2.03V ...
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... Low-Power Dual-/Triple-Voltage SC70 µP Supervisory Circuits (T = +25°C, unless otherwise noted.) A NORMALIZED V TIMEOUT PERIOD vs. TEMPERATURE 1.019 1.014 1.009 1.004 0.999 0.994 0.989 0.984 -40 - TEMPERATURE (°C) NORMALIZED V CC vs. TEMPERATURE 1.008 1.003 0.998 0.993 NORMALIZED TO +25°C 0.988 -40 -20 20 TEMPERATURE (°C) RESET INPUT TO RESET OUTPUT DELAY vs ...
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... Low-Power Dual-/Triple-Voltage SC70 µ +25°C, unless otherwise noted RESET OUTPUT DELAY 100ns/div V TO RESET OUTPUT DELAY CC 4µs/div _______________________________________________________________________________________ Supervisory Circuits Typical Operating Characteristics (continued) MAX6736-45 toc10 V MR 2V/div V RESET 2V/div MAX6736-45 toc12 500 400 V CC 200mV/div ...
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... Low-Power Dual-/Triple-Voltage SC70 µP Supervisory Circuits PIN MAX6736 MAX6738 MAX6740 MAX6741 MAX6737 MAX6739 MAX6743 MAX6744 — 4 — 4 — — — — — — — — — — 8 _______________________________________________________________________________________ NAME MAX6742 MAX6745 Reset Output, Push-Pull or Open Drain Active Low. RESET ...
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... Note: Standard versions, shown in bold, are available in the D3 timeout option only. Samples are typically held on standard versions only. There is a 10,000-piece order increment on non- standard versions. Other threshold voltages may be avail- able; contact factory for availability. _______________________________________________________________________________________ Supervisory Circuits V 2 NOMINAL PART NO. CC VOLTAGE ...
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... GND Figure 1. Timing Diagram Detailed Description Supply Voltages The MAX6736–MAX6745 µP supervisory circuits main- tain system integrity by alerting the µP to fault condi- tions. These devices are optimized for systems that monitor two or three supply voltages. The reset output state is guaranteed to remain valid while either above 1 ...
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... The threshold voltage at RSTIN is typi- V EXT_TH R1 RSTIN R2 Figure 3. Monitoring an Additional Voltage ______________________________________________________________________________________ Supervisory Circuits SWITCH BOUNCE t MRP cally 488mV. Connect a resistor-divider network to the circuit as shown in Figure 3 to establish an externally controlled threshold voltage, V Low leakage current at RSTIN allows the use of large- valued resistors, resulting in reduced power consump- tion of the system ...
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... Low-Power Dual-/Triple-Voltage SC70 µP Supervisory Circuits POSITIVE IN V EXT_TH MAX6742 MAX6745 EXT_TH R1 PFI PFO R2 GND NEGATIVE EXT_TH CC MAX6742 MAX6745 V R1 PFI PFO R2 GND V EXT_TH Figure 4. Using Power-Fail Input to Monitor an Additional Power Supply Adding Hysteresis to the Power-Fail Comparator The power-fail comparator has a typical input hystere- sis of 2 ...
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... R1, and R2 RSTIN/PFI ______________________________________________________________________________________ Supervisory Circuits 1 POK (POK1) ideal The MAX6736–MAX6745 supervisors are relatively 1 immune to short-duration falling the es usually undesirable to reset the µP when V POKP experiences only small glitches. The Typical Operating Characteristics show Maximum V Duration vs ...
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... Low-Power Dual-/Triple-Voltage SC70 µP Supervisory Circuits VOLTAGE OPEN-DRAIN PART MONITORS MAX6739 1 fixed, 1 adj MAX6740 2 fixed, 1 adj MAX6741 2 fixed MAX6742 1 fixed MAX6743 2 fixed, 1adj MAX6744 2 fixed MAX6745 1 fixed *Manual reset detect on RESET output. DC/DC CONVERTER UNREGULATED IN OUT DC IN OUT DC/DC CONVERTER SHDN ...
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... Nonstandard versions require a minimum order increment of 10,000 pieces. Contact factory for availability. Devices are available in both leaded and lead-free packaging. Specify lead-free by replacing “-T” with “+T” when ordering. ______________________________________________________________________________________ Supervisory Circuits RESET MAX6738 ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc ...