MAX16063 19-4100 Rev 0 4/08 1% Accurate, Low-Voltage, Quad Window Voltage Detector General Description Features The MAX16063 is a 1% accurate, adjustable, quad win- Monitor Four Undervoltage/Overvoltage Conditions dow voltage detector in a small thin QFN package. This 1% Accuracy Over Temperature device is designed to provide a higher level of system User-Adjustable Voltage Thresholds reliability by monitoring multiple supply voltages and pro- (Down to 0.4V) viding a fault signal when any of the voltages exceed their overvoltage thresholds or fall below their undervolt- Open-Drain Outputs with Internal Pullups Reduce age thresholds. the Number of External Components The MAX16063 offers user-adjustable voltage thresh- Manual Reset Input olds that allow voltages to be monitored down to 0.4V. Margin Enable Input This allows the upper and lower trip thresholds of each Fixed or Adjustable RESET Timeout window detector to be set externally with the use of three external resistors. Guaranteed to Remain Asserted Down to V = 1V CC Fully Specified from -40C to +125C Each monitored threshold has an independent open- drain output for signaling a fault condition. The outputs Small, 4mm x 4mm Thin QFN Package can be wire-ORed together to provide a single fault out- put. The open-drain outputs are internally pulled up Ordering Information with a 30A current, but can be externally driven to other voltage levels for interfacing to other logic levels. PART TEMP RANGE PIN-PACKAGE Features include a margin input to disable the outputs MAX16063TG+ -40C to +125C 24 TQFN-EP* during margin testing or any other time after power-up +Denotes a lead-free package. operations. Also featured is a reset output that *EP = Exposed pad. deasserts after a reset timeout period after all voltages For tape-and-reel, add a T after the +. Tape-and-reel are are within their threshold specifications. The reset time- offered in 2.5k increments. out is internally set to 140ms (min), but can be external- ly adjusted to other reset timeouts using an external Typical Operating Circuit capacitor. In addition, the MAX16063 offers a manual reset input. 3.5V 2.5V This device is offered in a 4mm x 4mm thin QFN pack- V SRT VCC MARGIN CC RESET 1.8V RESET C age and is fully specified from -40C to +125C. UVIN1 UVOUT1 1.5V GND Applications OVIN1 OVOUT1 Storage Equipment Networking/Telecommunications Equipment UVIN2 UVOUT2 Multivoltage ASICs MAX16063 OVIN2 OVOUT2 Servers Automotive UVIN3 UVOUT3 OVOUT3 OVIN3 UVIN4 UVOUT4 OVIN4 OVOUT4 MR GND Pin Configuration appears at end of data sheet. 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, Low-Voltage, Quad Window Voltage Detector ABSOLUTE MAXIMUM RATINGS V , OVOUT , UVOUT , RESET, Continuous Power Dissipation (T = +70C) CC A 24-Pin Thin QFN (derate 16.9mW/C above +70C) ....1666mW UVIN , OVIN to GND.........................................-0.3V to +6V MARGIN, MR, SRT to GND ........................-0.3V to (V + 0.3V) Operating Temperature Range .........................-40C to +125C CC Junction Temperature .....................................................+150C Input/Output Current Storage Temperature Range .............................-65C to +150C (RESET, MARGIN, SRT, MR, UVOUT , OVOUT ).......20mA Lead Temperature (soldering, 10s) .................................+300C 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, outputs deasserted 45 65 CC Supply Current (Note 3) I A CC V = 5V, outputs deasserted 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 UVIN /OVIN Adjustable Threshold (UVIN V 0.390 0.394 0.398 V TH Falling/OVIN Rising) UVIN falling/OVIN rising (percentage of the UVIN /OVIN Hysteresis V 0.5 % V TH HYS TH threshold) UVIN /OVIN Input Current I -100 +100 nA IB RESET SRT = V 140 200 280 CC C = 1500pF (Note 4) 2.43 3.09 3.92 SRT Reset Timeout t ms RP C = 100pF 0.206 SRT C = open 0.05 SRT SRT Ramp Current I V = 0V 460 600 740 nA SRT SRT SRT Threshold 1.173 1.235 1.293 V SRT Hysteresis 100 mV UVIN /OVIN to Reset Delay t UVIN falling/OVIN rising 20 s RD 2 MAX16063