- 您现在的位置：买卖IC网 > PDF目录1788 > DS2790G+T&R (Maxim Integrated Products)IC FUEL GAUGE BATT 28-TDFN PDF资料下载
参数资料
| 型号： | DS2790G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 35/41页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE BATT 28-TDFN |
| 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） |
| 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： | 28-TDFN |
| 供应商设备封装： | 28-TDFN-EP（8x4） |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页当前第35页第36页第37页第38页第39页第40页第41页
DS2790 Programmable 1-Cell Li-Ion Fuel Gauge and Protector
offending charge current source. The Charge V OC limit is programmable through the COCT bits in the ADC
Configuration register.
Discharge Overcurrent, DOC. If V IS is less than -V OC for a period longer than t OCD , the DS2790 shuts off the
external discharge FET and sets the DOCF bit in the protection register. The discharge current path is not re-
established until the voltage on PLS rises above V DD - V TP . The DS2790 provides a test current of value I TST from
V DD to PLS to pull PLS up to detect the removal of the offending low-impedance load. The Discharge V OC limit is
programmable through the DOCT bits of the ADC Configuration register.
Short Circuit, SC. If the voltage on the SNS2 pin with respect to SNS1 exceeds short-circuit threshold V SC1 for a
period longer than short-circuit delay t SCD , the DS2790 shuts off the external discharge FET and sets the SCF bit in
the protection register. The discharge current path is not re-established until the voltage on PLS rises above V DD -
V TP . The DS2790 provides a test current of value I TST from V DD to PLS to pull PLS up to detect the removal of the
short circuit. The V SC limit is programmable through the DOCT bits of the ADC Configuration register. The t SCD limit
is programmable through the SCDT bit of the ADC Configuration register. If a short circuit event collapses V DD , a
secondary short circuit protection function disables the discharge FET within a period of t SSCD.
Charge/Discharge Over-/Undertemperature, DOT, DUT. Assuming no other fault conditions, the CC pin is
enabled when the temperature is greather than T CH , or less than or equal to T CL . The DC pin is disabled when the
temperature is greater than T DH , or less than or equal to T DL . When the temperature is inside these ranges, both
control pins are enable. There is no hysteresis or delay period associated with temperature protection.
Temperature protection must be enabled by user code by setting the TLIME bit. Over-/Undertemperature limits are
defined by TLIM0 and TLIM1 bits located in password protected memory.
Figure 18. Lithium-Ion Protection Circuitry Example Waveforms
V OV
V CELL
V CE
V UV
CHARGE
V IS
DISCHARGE
(NOTE 1)
V OC
0
-V OC
-V SC
CC
DC
t OVD
t SCD
t OVD
t OCD
t OCD
t UVD
V CP
V DD
V CP
V PLS
UVF
NOTE 1: TO ALLOW THE DEVICE TO REACT QUICKLY TO SHORT CIRCUITS, DETECTION OCCURS ON THE SNS PIN RATHER THAN ON THE
FILTERED IS1 AND IS2 PINS. THE ACTUAL SHORT-CIRCUIT DETECT CONDITION IS V SNS2 - V SNS1 > V SC1 .
Summary. All of the protection conditions described above are AND’ed together with temperature protection
functions to affect the CC and DC outputs.
DC = ( Undervoltage ) and ( Overcurrent , Either Direction) and ( Short Circuit ) and ( Discharge
Overtemperature if enabled) and ( Discharge Undertemperature if enabled) and (DE = 1) and SLEEP
35 of 41
相关PDF资料 |
PDF描述 |
|---|---|
| DS3881E+T&R | IC CCFL CONTROL 24TSSOP |
| DS3882E+T&R | IC CCFL CNTRLR DUAL 28TSSOP |
| DS3984T+ | IC CCFL CNTRLR 4CH 32-TQFP |
| DS3988T+ | IC CCFL CNTRLR 8CH 48TQFP |
| DS3991Z+T&R/PPV | IC CTRLR CCFL PUSH-PULL 16-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2792G+ | 功能描述:IC PROG FUEL GAUGE W/UART 28TDFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| DS2792G+T&R | 制造商:Maxim Integrated Products 功能描述:IC FUEL GAUGE BATT 28-TDFN |
| DS2792G+T&R | 功能描述:IC FUEL GAUGE BATT 28-TDFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| DS28 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| DS280BR810ZBFT | 功能描述:Buffer, ReDriver 8 Channel 28Gbps 8-SOIC 制造商:texas instruments 系列:- 包装:剪切带（CT） 零件状态:有效 类型:缓冲器，转接驱动器 应用:- 输入:CML 输出:CML 数据速率（最大值）:28Gbps 通道数:8 延迟时间:- 信号调节:- 电容 - 输入:- 电压 - 电源:2.5V 电流 - 电源:- 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商器件封装:8-SOIC 标准包装:1 |
发布紧急采购，3分钟左右您将得到回复。