- 您现在的位置：买卖IC网 > PDF目录1788 > DS2746G+T&R (Maxim Integrated Products)IC MON BATTERY 2-WIRE 10-TDFN PDF资料下载
参数资料
| 型号： | DS2746G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/17页 |
| 文件大小： | 0K |
| 描述： | IC MON BATTERY 2-WIRE 10-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）；镍金属氢化物（NiMH） |
| 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： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
DS2746 Low-Cost 2-Wire Battery Monitor
Figure 4. APPLICATION EXAMPLE
System
Pack+
150
VOUT
VIN
1K
VDD
VDD
(1) 5.6V
10nF
Protection IC
(Li+/Polymer)
PackID
Therm
1K
1K
AIN0
AIN1
VSS
CTG
SDA
SCL
SNS
System
Serial
Bus
DS2746
Pack-
R SNS
System
1nF
1nF
(1) Optional for 8kV/15kV ESD
2.5V
(1)
VSS
POWER MODES
The DS2746 operates in one of two power modes: active and sleep. While in active mode, the DS2746 operates as
a high-precision battery monitor with voltage, auxiliary inputs, current and accumulated current measurements
acquired continuously and the resulting values updated in the measurement registers. Read and write access is
allowed to all registers. In sleep mode, the DS2746 operates in a low-power mode with no measurement activity.
The DS2746 operating mode transitions from SLEEP to ACTIVE when:
( SCL > V IH ) OR ( SDA > V IH )
The DS2746 operating mode transitions from ACTIVE to SLEEP when:
SMOD = 1 AND [ ( SCL < V IL ) AND ( SDA < V IL ) ] for t SLEEP
CAUTION : If SMOD = 1, a pull-up resistor is required on SCL and SDA in order to ensure that the DS2746
transitions from SLEEP to ACTIVE mode when the battery is charged. If the bus is not pulled up, the DS2746
remains in SLEEP and cannot accumulate the charge current.
MEASUREMENT SEQUENCE
The DS2746 uses seperate A/D converters to make voltage and current measurements. Each A/D converter
operates completely independent of the other, allowing measurements of voltage and current to be made in
parallel. Current Measurements are made at a resolution of 13 bits plus sign bit. The current register is updated
every 878ms with the average for that time period.
All Voltage Measurements are made at a resolution of 11 bits plus sign bit. The DS2746 continouly cycles through
measuring V IN , AIN0, and AIN1 in that order. Voltage measurement of each input requires 220ms to complete. A
full sequence of voltage measurements requires 660ms to complete. V OUT is active for a precharge time of t PRE
before the AIN0 measurement time occurs. The V OUT pin is enabled during the entire AIN0 and AIN1 measurement
sequence as long as the V ODIS (V OUT Disable) bit is cleared. See Figure 5.
7 of 17
相关PDF资料 |
PDF描述 |
|---|---|
| DS2756E-5+T&R | IC FUEL GAUGE BATT 3V 8-TSSOP |
| DS2760BE+T&R | IC BATT MON LI-ION HP 16-TSSOP |
| DS2761BE+T&R | IC MON BATT LI-ION HP 16-TSSOP |
| DS2762AE+025/T&R | IC MON BATT LI-ION HP 16-TSSOP |
| DS2764BE+025 | IC MON BATT LI-ION HP 16-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2746K | 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| DS275 | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| DS275+ | 功能描述:RS-232接口集成电路 Line-Powered RS-232 Transceiver Chip RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| DS2751 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Multichemistry Fuel Garge |
| DS2751+ | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Multichemistry Fuel Garge |
发布紧急采购，3分钟左右您将得到回复。