general description the max14740max14742/max20320 compact 6a smart power-path selector with reset control features a low 11m (typ) ron internal fet and provides the sys - tem power from two separate power sources. the devices feature reset and disconnect functions to provide system power, reset, and disconnect based on multiple inputs, including mr1, mr2 , and tain. the devices feature two individual enable inputs to control each power path. the max14740 enable function is provided through i 2 c control, while those of the max14741/ max14742//max20320 are performed by gpio control. each enable input controls the corresponding path as an independent switch. however, when both paths are enabled, the device can either autoselect the input source or have both inputs connected to the output. when autoselect is chosen, the internal comparator controls the path based on the voltage at the input nodes. the devices also feature an ultra-low supply current, even during an operating state or off state, providing longer battery life. the devices are available in 20-bump (1.6mm x 2.1mm) wafer-level packages (wlps) and operate over the -40c to +85c extended temperature range. applications smart phones tablet pcs cameras game console benefts and features provides robust bidirectional power path ? wide operating input voltage: +1.6v to +5.5v ? 6a continuous-current capability ? two integrated 11m (typ) mosfet switches flexible system design with battery connect, reset, and disconnect ? i 2 c control: max14740 ? programmable connect time ? programmable reset setup time ? programmable reset pulse length ? programmable disconnect setup time ? programmable comparator hysteresis ? programmable input autoselect gpio control: max14741/max14742/max20320 ? programmable comparator hysteresis ? programmable input autoselect long battery life ? ultra-low quiescent supply current 7.5a (typ) ? fast switchover ? optimum soft-start feature ordering information appears at end of data sheet. 19-7756; rev 1; 7/16 max14740Cmax14742/ max20320 smart, compact, 6a, power-path selector with reset control evaluation kit available abridged data sheet
+denotes a lead(pb)-free/rohs-compliant package. t = tape and reel. maxim integrated 25 contr ol m a x1474 2/max20320 in1 in2 ba tt ery 1 ba tt ery 2 out ch arger sys tem load ta mr1 mr2 tain ap or pmic en1 en2 hs gnd di out ordering information/selector guide part communication comparator threshold out discharge enable t db pin- package max14740ewp+t i 2 c programmable programmable 2.5 sec 20 wlp max14741ewp+t gpio 300mv/500mv no 2.5 sec 20 wlp max14742ewp+t gpio 200mv/400mv yes 2.5 sec 20 wlp max20320ewp+t gpio 200mv/400mv yes 1 sec 20 wlp chip information process: bicmos package information for the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. package type package code outline no. land pattern no. 20 wlp w201g2+1 21-100016 refer to application note 1891 typical application circuits (continued) max14740Cmax14742/ max20320 smart, compact, 6a, power-path selector with reset control www.maximintegrated.com abridged data sheet
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