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DS2790G+T&R PDF预览

DS2790G+T&R

更新时间: 2024-11-01 13:00:59
品牌 Logo 应用领域
美信 - MAXIM 电池仪表
页数 文件大小 规格书
41页 389K
描述
Power Supply Management Circuit, Adjustable, 1 Channel, 8 X 4 MM, LEAD FREE, TDFN-28

DS2790G+T&R 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Obsolete零件包装代码:DFN
包装说明:8 X 4 MM, LEAD FREE, TDFN-28针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
Is Samacsys:N可调阈值:YES
模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码:R-XDSO-N28
JESD-609代码:e3长度:8 mm
信道数量:1功能数量:1
端子数量:28最高工作温度:70 °C
最低工作温度:-20 °C封装主体材料:UNSPECIFIED
封装代码:HVSON封装等效代码:SOLCC28,.16,20
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):260电源:3/5 V
认证状态:Not Qualified座面最大高度:0.8 mm
子类别:Power Management Circuits最大供电电流 (Isup):3.3 mA
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):2.5 V
标称供电电压 (Vsup):3.7 V表面贴装:YES
温度等级:OTHER端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:4 mmBase Number Matches:1

DS2790G+T&R 数据手册

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DS2790  
Programmable 1-Cell Li-Ion Fuel  
Gauge and Protector  
www.maxim-ic.com  
GENERAL DESCRIPTION  
FEATURES  
The DS2790 provides a complete fuel gauging and  
protection solution for single cell Li-Ion battery packs.  
A low-power 16-bit MAXQ20 microcontroller with  
generous program and data memory, combined with  
an accurate measurement system for battery current,  
voltage, and temperature provide the ideal platform  
for customized fuelgauge algorithms. The 2-wire  
interface provides an I2C*- or SMBus-compatible  
communication path between the host and battery  
Cꢀ Accurate Current Measurement for Coulomb  
Counting (Current Accumulation)  
1.5% ±4µV over ± 64mV Input Range  
1.5% ±267µA over ±4.2A Range Using an  
External 15mSeries Resistor  
Cꢀ High Resolution Current Reporting  
12-bit + Sign Average Every 0.88ms  
15-bit + sign Average Every 2.8s  
Cꢀ Voltage Measurement  
pack,  
while  
providing  
password  
protected  
10-bit Average  
programming of the fuel-gauging firmware. EEPROM  
data memory supports nonvolatile in-pack storage of  
charge parameters, cell characteristics, usage  
history, and manufacturing/lot tracking data.  
Cꢀ Temperature Measurement  
10-bit Using On-Chip Sensor  
Cꢀ 16-bit MAXQ20 Low Power Microcontroller  
Efficient C-Language Programming  
8k words Total Program Memory  
ꢂꢃ 4k Words EEPROM Program Memory  
ꢂꢃ 4k Words ROM Program Memory  
64 Words Data EEPROM  
An autonomous state machine performs voltage,  
current, and temperature related protection functions.  
This capability increases reliability of the whole  
system by eliminating dependence on the CPU for  
protection. The DS2790 supports Li-Ion batteries in a  
wide range of applications.  
256 Words Data RAM  
Cꢀ State Machine-Driven Protection  
Protection Independent of CPU Operation  
Programmable Levels for:  
TYPICAL OPERATING CIRCUIT  
ꢂꢃ Overvoltage/Undervoltage  
1nF × 2  
ꢂꢃ Overcurrent  
PACK+  
ꢂꢃ Temperature Limits  
Cꢀ Lithium-Ion Protector Drives Highside N-FETs  
Cꢀ Industry Standard 400kHz 2-Wire interface  
Password Protected Programming  
Cꢀ Operates as Low as 2.5V Input on VDD  
Cꢀ SHA-1 Hash Algorithm in ROM  
Cꢀ Internal OscillatorZNo Crystal Required  
Cꢀ Low Power Consumption  
CC  
DC  
VIN  
VDD  
CP  
PLS  
6
[P0.0 - P0.5]  
150ꢀ  
150ꢀ  
CLK  
0.1µF 0.1µF  
SCL  
DS2790  
3.3mA CPU Mode (1MHz), 280µA Analog Mode,  
4.5µA Sleep Mode  
DATA  
SDA  
AVSS  
VSS  
SNS1  
SNS2  
5.6V 5.6V  
(1) (1)  
IS1  
IS2  
ORDERING INFORMATION  
0.1F  
PART  
TEMP RANGE  
-20ºC to +70ºC  
-20ºC to +70ºC  
PIN-PACKAGE  
TSSOP-28  
TDFN-28  
RSNS  
PACK-  
DS2790E+  
DS2790G+  
2.5V  
(1)  
(1) Optional for 8kV/15kV ESD  
Contact factory concerning Mask ROM devices.  
+ Denotes lead-free package.  
MAXQ is a registered trademark of Maxim Integrated Products,  
Inc.  
PIN CONFIGURATION  
SMBus is a trademark of Intel Corp.  
* I2C is a Philips Corp. trademark. See acknowledgement at the  
end of the data sheet.  
See last page for TSSOP and TDFN packages.  
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 41  
REV: 080206  

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