DS3800 ,Advanced NV SRAM Battery CapFEATURES PIN ASSIGNMENT Houses 400 mAh primary lithium battery Snaps directly onto a surface–moun ..
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DS3800
Advanced NV SRAM Battery Cap
FEATURESHouses 400 mAh primary lithium batterySnaps directly onto a surface–mounted 40mm
ball–grid array (BGA) Nonvolatile SRAMmoduleAttaches after host BGA module has been
surface–mounted to protect lithium battery
from the high temperatures of reflow
solderingMaintains mechanical and electrical
connection with BGA module even during
severe shock and vibration stressesFour attachment flanges latch onto host BGA
module to provide strong, semi–permanentattachment. Flanges can be broken off for cap
removalIndustrial temperature range of –40°C to
+85°C
attery Cap
PIN ASSIGNMENT
ABSOLUTE MAXIMUM RATINGSOperating Temperature-40°C to 85°CNon-Operating Temperature-40°C to 85°C
BATTERY CHARACTERISTICSNominal Voltage3 volts
Nominal Capacity400 mAhChemistryLi(CF)x
Data Retention Life8 Years (25°C)
DESCRIPTIONThe DS3800 Battery Cap is a snap–on lithium power source for Dallas Semiconductors 40mm ball–grid
array (BGA) Nonvolatile SRAM modules. After a host BGA module has been soldered in place and
cleaned, the DS3800 Battery Cap is snapped onto the module to serve as the secondary power supply.The Battery Cap is keyed to prevent incorrect attachment and is designed to maintain mechanical and
electrical contact with its host module even during severe shock and vibration. Electrically, the DS3800
battery is connected to the host BGA module with gold–plated round pins in the Battery Cap inserted into
gold–plated receptacles on the BGA. Mechanically, four flanges on the DS3800 tightly grip the BGA
module board to prevent Cap removal, while corner features in the Cap prevent lateral movement of theCap while it is attached to its host BGA module.
DS3800
Advanced NV SRAM Battery Cap
DS3800
DS3800 PACKAGE DIMENSIONS
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www.ic-phoenix.com
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