MAX16060/MAX16061/MAX16062 19-4099 Rev 0 4/08 1% Accurate, Quad-/Hex-/Octal-Voltage P Supervisors General Description Features The MAX16060/MAX16061/MAX16062 are 1% accurate, Fixed Thresholds for 3.3V, 2.5V, and 1.8V Systems quad-/hex-/octal-voltage P supervisors in a small thin Adjustable Thresholds Monitor Low Voltages QFN package. These devices provide supervisory func- (Down to 0.4V) tions for complex multivoltage systems.The MAX16060 1% Accurate over Temperature monitors four voltages, the MAX16061 monitors six volt- Open-Drain Outputs with Internal Pullups Reduce ages, and the MAX16062 monitors eight voltages. the Number of External Components These devices offer independent outputs for each mon- Fixed 140ms (min) or Capacitor-Adjustable Reset itored voltage along with a reset output that asserts Timeout whenever any of the monitored voltages fall below their Manual Reset, Margin Enable, and Tolerance respective thresholds (down to 0.4V) or the manual Select Inputs reset input is asserted. The reset output remains assert- Watchdog Timer ed for the reset timeout after all voltages are above their 1.6s (typ) Timeout Period respective thresholds and the manual reset input is 54s Startup Delay After Reset deasserted. The minimum reset timeout is internally set Monitors Four (MAX16060), Six (MAX16061), or to 140ms or can be adjusted with an external capacitor. Eight (MAX16062) Voltages All open-drain outputs have internal 30A pullups that RESET Output Indicates All Voltages Present eliminate the need for external pullup resistors. Independent Voltage Monitors However, each output can be driven with an external voltage up to 5.5V. Other features offered include a Guaranteed to Remain Asserted Down to V = 1V CC manual reset input, a tolerance pin for selecting 5% or Small (4mm x 4mm) Thin QFN Package 10% input thresholds, and a margin enable function for Applications deasserting the outputs during margin testing. Storage Equipment Multivoltage ASICs An additional feature is a watchdog timer that asserts RESET when the watchdog timeout period (1.6s typ) is Servers Automotive exceeded. The watchdog timer can be disabled by Networking/Telecommun- leaving WDI unconnected. ication Equipment These devices are offered in 16-, 20-, and 24-pin thin QFN packages (4mm x 4mm) and are fully specified Typical Operating Circuit from -40C to +125C. V SRT MARGIN CC V IN1 IN1 Ordering Information RESET RST V IN2 IN2 P V IN3 PART TEMP RANGE PIN-PACKAGE IN3 WDI I/O MAX16060 TE+ -40C to +125C 16 TQFN-EP* MAX16061A MAX16061 TP+ -40C to +125C 20 TQFN-EP* MAX16062 TG+ -40C to +125C 24 TQFN-EP* V IN4 IN4 OUT1 V IN5 IN5 Note: The is a placeholder for the input voltage threshold. OUT2 See Table 1. The MAX16060/MAX16061/MAX16062 are avail- able in factory-preset thresholds/configuration combinations. OUT3 Choose the desired combination and complete part number OUT4 from Table 1. V IN6 IN6 +Denotes a lead-free package. OUT5 For tape-and-reel, add a T after the +. Tape-and-reel are offered in 2.5k increments. OUT6 *EP = Exposed pad. MR GND TOL Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.1% Accurate, Quad-/Hex-/Octal-Voltage P Supervisors ABSOLUTE MAXIMUM RATINGS V , OUT , IN , RESET to GND ..............................-0.3V to +6V Operating Temperature Range .........................-40C to +125C CC Junction Temperature .....................................................+150C TOL, MARGIN, MR, SRT, WDI to GND ...........-0.3V to V + 0.3 CC Input/Output Current (RESET, MARGIN, Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C SRT, MR, TOL, OUT , WDI).........................................20mA Continuous Power Dissipation (T = +70C) A 16-Pin TQFN (derate 16.9mW/C above +70C) ......1349mW 20-Pin TQFN (derate 16.9mW/C above +70C) ......1355mW 24-Pin TQFN (derate 16.9mW/C above +70C) ......1666mW 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 = 2.0V to 5.5V, T = -40C to +125C, unless otherwise specified. Typical values are at V = 3.3V, T = +25C.) (Note 1) CC A CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Voltage Range V (Note 2) 1.0 5.5 V CC V = 3.3V, OUT , RESET not asserted 45 65 CC Supply Current (Note 3) I A CC V = 5V, OUT , RESET not asserted 50 70 CC UVLO (Undervoltage Lockout) V V rising 1.62 1.80 1.98 V UVLO CC UVLO Hysteresis V 65 mV UVLO HYS IN (See Table 1) 3.3V threshold, TOL = GND 3.069 3.102 3.135 3.3V threshold, TOL = V 2.904 2.937 2.970 CC 2.5V threshold, TOL = GND 2.325 2.350 2.375 Threshold Voltages (IN Falling) V V TH 2.5V threshold, TOL = V 2.200 2.225 2.250 CC 1.8V threshold, TOL = GND 1.674 1.692 1.710 1.8V threshold, TOL = V 1.584 1.602 1.620 CC TOL = GND 0.390 0.394 0.398 Adjustable Threshold V V TH (IN Falling) TOL = V 0.369 0.373 0.377 CC IN Hysteresis V IN rising 0.5 % V TH HYS TH Fixed thresholds 3 16 A IN Input Current Adjustable thresholds -100 +100 nA 2 MAX16060/MAX16061/MAX16062