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DS2782E+T&R Datasheet

  • DS2782E+T&R

  • Stand-Alone Fuel Gauge IC

  • 25頁

  • MAXIM   MAXIM

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DS2782
Stand-Alone Fuel Gauge IC
www.maxim-ic.com
GENERAL DESCRIPTION
The DS2782 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
摟
摟
摟
Precision Voltage, Temperature, and Current
Measurement System
Accurate Stable Internal Time Base
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 User EEPROM or 16-Byte User
EEPROM and Unique 64-bit ID
Industry 2-Wire Interface with Programmable
Slave Address
Tiny 8-Pin TSSOP Package Embeds Easily in
Battery Packs Using Thin Prismatic Cells
摟
摟
摟
APPLICATIONS
Digital Still Cameras
Sub-Notebook Computers
Handheld PC Data Terminals
3G Multimedia Wireless Handsets
摟
摟
摟
TYPICAL OPERATING CIRCUIT
Pack+
PIN CONFIGURATION
TOP VIEW
TSSOP-8
150
DS2782
SDA 5
SCL 6
4
VDD
3
1
VIN
NC
500
1K
SDA
SCL
150
5.6V
5.6V
PIO
8
1 Cell
Li-Ion
Battery
NC
VSS
VIN
VDD
1
2
3
4
8
7
6
5
PIO
SNS
SCL
SDA
SNS 7
TSSOP-8
2
VSS
0.1uF
Protection
Circuit
Pack-
RSNS
ORDERING INFORMATION
PART
DS2782E+
DS2782E+T&R
MARKING
2782+
2782+
PACKAGE INFORMATION
Lead-Free TSSOP
DS2782E+, Tape-and-Reel
Note:
To order devices with the unique 64-bit ID option, contact Maxim/Dallas Semiconductor sales.
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.
1 of 25
REV: 042505

DS2782E+T&R 產(chǎn)品屬性

  • Maxim Integrated Products

  • Reel

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