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CBC34123-M5C-TR5 Datasheet(PDF) 10 Page - Cymbet Corporation |
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CBC34123-M5C-TR5 Datasheet(HTML) 10 Page - Cymbet Corporation |
10 / 14 page CBC34123 EnerChip™ RTC ©2013-2015 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com DS-72-31 V.13 Page 10 of 14 Preliminary GUIDELINES FOR HANDLING ENERCHIP RTC DEVICES The EnerChip™ RTC with an integrated thin film, solid state battery features all solid state construction, are packaged in standard integrated circuit packages, and can be reflow soldered for high volume PCB assembly. The CBC34123 EnerChip RTC is considered an MSL-3 rated device for storage and handling purposes. Device Handling & Storage • EnerChip RTCs are packaged and shipped in tubes or reels in moisture barrier bags, and are sensitive to moisture absorption. They must be kept in the sealed bag until ready for board mounting and reflow soldering. • If the EnerChip RTCs are removed from the sealed bag more than 168 hours prior to board mounting, they must be baked at 125°C for a minimum of 24 hours prior to board mounting and reflow soldering. • Store the EnerChip RTCs in an environment where the temperature and humidity do not undergo large fluctuations. Store at 10°C to 30°C and at less than 60% relative humidity. Electrostatic Discharge (ESD) • The EnerChip RTCs are sensitive to ESD damage prior to receiving a battery charge cycle. Therefore, adherence to ESD prevention guidelines is required. • Remove RTC devices from protective shipping and storage containers at approved ESD workstations only. • All equipment used to process the devices must be configured to minimize the generation of static charges. This includes soldering and de-soldering equipment and tools, pick-and-place equipment, test equipment, and all other tools and equipment used to handle or process the devices. • Failure to observe these precautions can lead to premature failure and shall void product warranty. Other Use Guidelines • Do not connect the EnerChip RTC to other types of batteries. • To increase battery life, avoid placing the EnerChip RTC near devices that would generate heat exceeding the 70°C operating limit. DO NOT HAND SOLDER ENERCHIP RTC DEVICES When soldering an individual uncharged EnerChip RTC, a QFN capable soldering station with temperature con- trol should be used. It is very important to be able to control the solder temperature and time when soldering an EnerChip RTC. ENERCHIP ASSEMBLY REPAIR TECHNIQUES For the EnerChip RTC QFN package, use a hot air rework station to remove a defective or misplaced EnerChip package. If there are other EnerChips in the vicinity of the EnerChip being replaced, use proper heat shielding to protect the adjacent EnerChip package from the heat source and turn off any heat source that would oth- erwise be used to heat the bottom of the board during removal of the EnerChip. This will prevent the adjacent EnerChip(s) from being damaged during the rework procedure. |
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