page 1 of 1 doc md-72-0xx rev a gnd en vcc reset/ sda scl irq*/clk c5 c5 c3 1.0uf c3 1.0uf y1 32.768khz y1 32.768khz u1 mcp7941x u1 mcp7941x x2 2 vss 4 sda 5 vbat 3 vcc 8 x1 1 scl 6 irq/clk 7 r1 r1 u2 cbc31xx u2 cbc31xx en gnd vbat vout vin reset vmode cn cp vchg r2 r2 c4 c4 c1 0.1uf c1 0.1uf r3 r3 c2 1.0uf c2 1.0uf page 1 of 1 doc md-72-0xx rev a ?2013 cymbet corporation ? tel: +1-763-633-1780 ? www.cymbet.com cymbet, the cymbet logo and enerchip are trademarks of cymbet corporation. all rights reserved applications enerchips are an attractive rtc backup alternative to batteries or supercapacitors, especially when the finished product has limited pcb space, size constraints or needs to be sealed or installed in a hard-to- reach location. they are also excellent if you have any of these design requirements: ? battery must be rohs and weee compliant ? product can be discarded without removing battery ? product must have battery installed during shipping via air ? battery must be rechargeable to support a lifetime of power outages ? battery must provide backup power for several hours during a main power failure advantages of combining these two parts cymbet enerchips are solid-state, rechargeable batteries with the following characteristics when compared to conventional rechargeable batteries: ? low self-discharge ? are solder reflow tolerant ? flat discharge voltage profile ? high charge/discharge cycle life ? simple voltage controlled charging ? have no flammable solvents to leak or catch fire ? are offered in low profile surface mount packages microchip mdp79410 real time clock how2 info sheet microchip mdp79410 rtc power backup with enerchip? battery mdp79410 CBC3105 cbc3112 cbc3150 iq (na at 3v) back up time (hrs) package size (mm x mm) back up time (hrs) package size (mm x mm) back up time (hrs) package size (mm x mm) xxx xx 4 x 5 xxx 7 x 7 xxx 9 x 9 documentation ? cymbet application note: an-1046 ? cymbet evaluation kits: cbc-eval-05b , cbc-eval-06 ? data sheets: microchip mdp79410 , CBC3105 , cbc3112 , cbc3150 ? all cymbet documents and downloads: http://www.cymbet.com/products/datasheets-downloads.php evaluation kits ?2013 cymbet corporation ? tel: +1-763-633-1780 ? www.cymbet.com cymbet, the cymbet logo and enerchip are trademarks of cymbet corporation. all rights reserved
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