MAX6700/MAX6710 19-2324 Rev 2 12/05 Low-Voltage, High-Accuracy, Triple/Quad Voltage P Supervisory Circuits in SOT Package General Description Features The MAX6700/MAX6710 precision triple/quad voltage Monitor Up to Four Power-Supply Voltages microprocessor (P) supervisory circuits monitor up to Precision Factory-Set Reset Threshold Options four system-supply voltages and assert a single reset if for 5.0V, 3.3V, 3.0V, 2.5V, and 1.8V Supplies any supply voltage drops below its preset threshold. These devices significantly reduce system size and com- Adjustable Voltage Threshold Monitors Down to ponent count while improving reliability compared to sep- 0.62V with 1.5% Accuracy arate ICs or discrete components. Low 35A Supply Current A variety of factory-trimmed threshold voltages are avail- able to accommodate different supply voltages and toler- Open-Drain RESET Output with 10A Internal ances with minimal external component requirements. Pullup The MAX6710 includes internally fixed options for moni- 5s Propagation Delay (MAX6700) toring 5.0V, 3.3V, 3.0V, 2.5V, and 1.8V supplies with -5% or -10% tolerances. The MAX6710 is also available with 140ms (min) Reset Timeout Period (MAX6710) one to three adjustable threshold options to monitor volt- RESET Valid to IN1 = 1V or IN2 = 1V ages down to 0.62V. The MAX6700 monitors three volt- ages with adjustable thresholds down to 0.62V. Immune to Short Monitored Supply Transients A single active-low output asserts when any monitored Guaranteed from -40C to +85C input falls below its associated threshold. The open-drain output has a weak internal pullup (10A) to IN2. For the Small 6-Pin SOT23 Package MAX6710, reset remains low for the reset timeout period (140ms min) after all voltages rise above the selected threshold. The MAX6700 acts as a voltage detector with a Ordering Information propagation delay of 5s after all monitored voltages PART TEMP RANGE PIN-PACKAGE exceed their thresholds. The output remains valid as long MAX6700UT-T -40C to +85C 6 SOT23-6 as either IN2 or IN2 input voltage remains above 1V (MAX6710) or V is above 2V (MAX6700/MAX6710Q). CC MAX6710 UT-T -40C to +85C 6 SOT23-6 The MAX6700/MAX6710 are available in a small 6-pin Insert the desired suffix letter from the Selector Guide into the blank to complete the part number. There is a 2500 piece mini- SOT23 package and operate over the extended (-40C to mum order increment requirement on the SOT package. These +85C) temperature range. devices are available in tape-and-reel only. Devices are available in both leaded and lead-free packaging. Specify lead-free by replacing -T with +T when ordering. Applications Telecommunications Typical Operating Circuit High-End Printers Desktop and Notebook Computers Data Storage Equipment Networking Equipment MAX6700 IN1 Industrial Equipment MAX6710 IN2 Set-Top Boxes SUPPLIES P RESET TO BE IN3 Servers/Workstations MONITORED IN4 Selector Guide with top marks appears at end of data sheet. GND Pin Configuration appears at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Low-Voltage, High-Accuracy, Triple/Quad Voltage P Supervisory Circuits in SOT Package ABSOLUTE MAXIMUM RATINGS Operating Temperature Range ...........................-40C to +85C V , IN , RESET to GND..........................................-0.3V to +6V CC Storage Temperature Range .............................-65C to +150C Continuous RESET Current.................................................20mA Continuous Power Dissipation Junction Temperature......................................................+150C Lead Temperature (soldering, 10s) .................................+300C 6-Pin SOT23 (derate 8.7mW/C above +70C).........695.7mW Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = 1V to 5.5V, T = -40C to +85C, unless otherwise noted. Typical values are at V = 3.0V to 3.3V, T = +25C.) (Note 1) IN2 A IN2 A PARAMETER SYMB O L CONDITIONS MIN TYP MAX UNITS V MAX6700/MAX6710Q 2.0 5.5 CC Operating Voltage Range o o T = 0 C to +85 C 1.0 5.5 V A (Note 2) V All others (Note 3) IN2 o o T = -40 C to +85 C 1.2 5.5 A IN = nominal input voltage (for 1.8V, 2.5V, 25 40 and 5.0V supplies) IN2 = nominal input voltage (for 3.0V and 55 115 I 3.3V supplies) (Note 4) IN Input Current A V = 0 to 0.85V (for adjustable thresholds) 0.4 IN1 V , V = 0 to 0.85V IN3 IN4 0.2 (for adjustable thresholds) I MAX6700/MAX6710Q only, V = 5.5V 35 50 CC CC 5V (-5%) 4.50 4.63 4.75 5V (-10%) 4.25 4.38 4.50 3.3V (-5%) 3.00 3.08 3.15 3.3V (-10%) 2.85 2.93 3.00 3.0V (-5%) 2.70 2.78 2.85 Threshold Voltage V IN decreasing V TH 3.0V (-10%) 2.55 2.63 2.70 2.5V (-5%) 2.25 2.32 2.38 2.5V (-10%) 2.13 2.19 2.25 1.8V (-5%) 1.62 1.67 1.71 1.8V (-10%) 1.53 1.58 1.62 Adjustable Threshold V IN decreasing 0.611 0.620 0.629 V TH Reset Threshold Hysteresis V IN increasing relative to IN decreasing 0.3 %V HYST TH Reset Threshold Temperature o TCV 60 ppm/ C TH Coefficient IN to Reset Delay t V fall i ng a t 10mV /s from V to (V - 50mV ) 30 s RD IN TH TH Propagation Delay t MAX6700 only 5 s PD Reset Timeout Period t MAX6710 only 140 200 280 ms RP 2 MAX6700/MAX6710