19-6144 Rev 0 12/11 EVALUATION KIT AVAILABLE MAX44268 1.3mm x 1.3mm, Low-Power Dual Comparator with Reference General Description Features The MAX44268 is an ultra-small and low-power dual S Ultra-Low Power Consumption comparator ideal for battery-powered applications such 0.7A per Comparator as cell phones, notebooks, and portable medical devices S Ultra-Small 1.3mm x 1.3mm WLP Package that have extremely aggressive board space and power S Internal 1.236V 1% Reference constraints. The comparator is available in a miniature 1.3mm x 1.3mm, 9-bump WLP package, making it the S Guaranteed Operation Down to V = 1.8V CC industrys smallest dual comparator. S Input Common-Mode Voltage Range Extends 200mV Beyond-the-Rails The IC can be powered from supply rails as low as 1.8V and up to 5.5V. It also features a 1.236V 1% reference S 6V Tolerant Inputs Independent of Supply and a 0.7A typical supply current per comparator. It has S Open-Drain Outputs a rail-to-rail input structure and a unique output stage that S Internal Filters Enhance RF Immunity limits supply current surges while switching. This design also minimizes overall power consumption under dynam- S Crowbar-Current-Free Switching ic conditions. The IC has open-drain outputs, making it S Internal Hysteresis for Clean Switching suitable for mixed voltage systems. The IC also features S No Output Phase Reversal for Overdriven Inputs internal filtering to provide high RF immunity. It operates over a -40C to +85C temperature. Applications Ordering Information appears at end of data sheet. Smartphones Notebooks For related parts and recommended products to use with this part, refer to www.maxim-ic.com/MAX44268.related. Two-Cell Battery-Powered Devices Battery-Operated Sensors Ultra-Low-Power Systems Portable Medical Mobile Accessories Typical Application Circuit 5V V IN V CC R3 MAX44268 INA+ OUTA POWER- GOOD REF/INA- R2 INB+ OUTB INB- R1 GND 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.MAX44268 1.3mm x 1.3mm, Low-Power Dual Comparator with Reference ABSOLUTE MAXIMUM RATINGS V to GND .............................................................-0.3V to +6V Continuous Input Current into Any Pin ............................Q20mA CC INA+, REF/INA-, INB+, INB- to GND ......................-0.3V to +6V Operating Temperature Range .......................... -40NC to +85NC Output Voltage to GND (OUT ) ..............................-0.3V to +6V Storage Temperature Range ............................ -65NC to +150NC Output Current (OUT ) ....................................................Q50mA Junction Temperature .....................................................+150NC Output Short-Circuit Duration (OUT ) .......................Continuous Lead Temperature (soldering, 10s) ................................+300NC Continuous Power Dissipation (T = +70NC) Soldering Temperature (reflow) ......................................+260NC A WLP (derate 11.9mW/NC above T = +70NC) .............952mW A PACKAGE THERMAL CHARACTERISTICS (Note 1) WLP Junction-to-Ambient Thermal Resistance (q ) ..........84C/W JA Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four- layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional opera- tion 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 = 5V, V = 0V, V = V = 1.236V, R = 100kI to V , T = -40NC to +85NC. Typical values are at T = +25NC, CC GND IN- IN+ PULLUP CC A A unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC CHARACTERISTICS Input-Referred Hysteresis V (V - 0.2V) P V P (V + 0.2V) (Note 3) 4 6 mV HYS GND CM CC T = +25NC 0.15 5 V - 0.2V P V P A GND CM Input Offset Voltage V mV OS V + 0.2V (Note 4) -40NC P T P +85NC 10 CC A T = +25NC 0.15 A Input Bias Current I nA B T = -40NC to +85NC 0.2 A T = +25NC 105 200 V = 1.8V, A CC I = 1mA -40NC P T P +85NC 300 Output-Voltage Swing SINK A V mV OL Low T = +25NC 285 350 V = 5V, I = A CC SINK 6mA -40NC P T P +85NC 450 A V V GND CC Input Voltage Range V Inferred from V test V CM OS - 0.2V + 0.2V V = 1.8V 3 Output Short-Circuit CC I Sinking, V = V mA SC OUT CC Current V = 5V 30 CC Output Leakage Current I V = 5.5V, V = 5.5V 0.2 nA LEAK CC OUT Maxim Integrated Products 2