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DS3802

Advanced NV SRAM Battery

Overview

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Status

All versions are No Longer Available.

Description

The DS3802 battery cap is a snap-on lithium power source for Dallas Semiconductor's 40mm BGA NV SRAM modules including the DS3832C-311 and DS3816C-511. After a host BGA module has been soldered in place and cleaned, the DS3802 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 DS3802 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, two flanges on the DS3802 tightly grip the BGA module board to prevent accidental cap removal, while corner features in the cap prevent lateral movement of the cap while it is attached to its host BGA module.

Data Sheet

Download	Rev 1	(PDF, 95kB)
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This product contains lithium-metal batteries. See applicable regulations for transport requirements for batteries in equipment.

Key Features

Houses 380mAh primary lithium batteries
Snaps directly onto a surface-mounted 40mm ball-grid array (BGA) nonvolatile (NV) SRAM module
Attaches after host BGA module has been surface-mounted to protect lithium battery from the high temperatures of reflow soldering
Maintains mechanical and electrical connection with BGA module even during severe shock and vibration stresses
Two attachment flanges latch onto host BGA module to provide a strong, semipermanent attachment
Industrial temperature range of -40°C to +85°C
Underwriters Laboratories (UL) Recognized

Diagram

Package Outline

Reliability Reports

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Underwriters Laboratories (UL) Recognized

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Tape and Reel

Sample

Part Number	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS3802	for DS3816 or DS3832 Base		N/A	No Longer Available	CAP; Land Pattern: Not Available	0°C to +70°C	See data sheet
DS3802EXT			N/A	No Longer Available	Land Pattern: Not Available	0°C to +70°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 1; 2002-05-08
This page last modified: 2009-12-17