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DS2780E+T&R

Description
Stand-Alone Fuel Gauge IC
CategoryPower/power management    The power supply circuit   
File Size427KB,31 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

DS2780E+T&R Overview

Stand-Alone Fuel Gauge IC

DS2780E+T&R Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSOIC
package instructionTSSOP, TSSOP8,.25
Contacts8
Reach Compliance Codecompli
ECCN codeEAR99
Factory Lead Time6 weeks
Samacsys DescriptiBattery Management Stand-Alone Fuel Gauge IC
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.4 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature-20 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply3/5 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply current (Isup)0.105 mA
Maximum supply voltage (Vsup)4.5 V
Minimum supply voltage (Vsup)2.5 V
Nominal supply voltage (Vsup)3.8 V
surface mountYES
Temperature levelOTHER
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
19-4634; 5/09
DS2780
Standalone Fuel Gauge IC
www.maxim-ic.com
GENERAL DESCRIPTION
The DS2780 measures voltage, temperature and
current, and estimates available capacity for
rechargeable Lithium Ion and Lithium Ion Polymer
batteries. Cell characteristics and application
parameters used in the calculations are stored in on-
chip EEPROM. The available capacity registers
report a conservative estimate of the amount of
charge that can be removed given the current
temperature, discharge rate, stored charge and
application parameters. Capacity estimation reported
in mAh remaining and percentage of full.
FEATURES
Precision Voltage, Temperature, and Current
Measurement System
Internal Time Base is Accurate and Temperature
Stable
Absolute and Relative Capacity Estimated from
Coulomb Count, Discharge Rate, Temperature
and Battery Cell Characteristics
Accurate Warning of Low Battery Conditions
Automatic Backup of Coulomb Count and Age
Estimation to Nonvolatile (NV) EEPROM
Gain and Tempco Calibration Allows the Use of
Low-Cost Sense Resistors
24-Byte Battery/Application Parameter EEPROM
16-Byte User EEPROM
Unique ID and Multidrop 1-Wire
Interface
Tiny 8-pin TSSOP & 10-pin TDFN Package
Embeds Easily in Battery Packs Using Thin
Prismatic Cells
APPLICATIONS
Digital Still Cameras
Sub-Notebook Computers
Handheld PC Data Terminals
3G Multimedia Wireless Handsets
TYPICAL OPERATING CIRCUIT
PK+
PIN CONFIGURATION
DS2780
DATA
150
DQ
PIO
NC
SNS
5.6V
500
1K
5
8
1
7
TSSOP-8
4
VDD
3
VIN
6
OVD
2
VSS
0.1uF
Protection
Circuit
1 Cell
Li-Ion
Battery
PK-
RSNS
ORDERING INFORMATION
PART
DS2780E
DS2780E/T&R
DS2780E+
DS2780E+T&R
DS2780G+
DS2780G+T&R
MARKING
2780
2780
2780
2780
2780
2780
PACKAGE INFORMATION
TSSOP
TSSOP Tape-and-Reel
TSSOP
TSSOP Tape-and-Reel
TDFN
TDFN Tape-and-Reel
+Denotes lead(Pb)-free/RoHS-compliant package.
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
Note:
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here:
www.maxim-ic.com/errata.
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