参数资料
型号: DS2780E+T&R
厂商: Maxim Integrated Products
文件页数: 1/31页
文件大小: 0K
描述: IC FUEL GAUGE BATT 8TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 燃料,电量检测计/监控器
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 2.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 8-TSSOP
包装: 带卷 (TR)
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
APPLICATIONS
Digital Still Cameras
Sub-Notebook Computers
?
?
?
?
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
Handheld PC Data Terminals
3G Multimedia Wireless Handsets
TYPICAL OPERATING CIRCUIT
PK+
Embeds Easily in Battery Packs Using Thin
Prismatic Cells
PIN CONFIGURATION
DS2780
500
1K
DATA
150
5.6V
DQ
PIO
NC
SNS
5
8
1
7
TSSOP-8
4 VDD
3 VIN
6 OVD
2 VSS
0.1uF
1 Cell
Li-Ion
Battery
Protection
Circuit
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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