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参数资料
| 型号： | DS2762AE+025/T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/25页 |
| 文件大小： | 0K |
| 描述： | IC MON BATT LI-ION HP 16-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 功能： | 电池监控器 |
| 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： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
DS2762 High-Precision Li+ Battery Monitor With Alerts
HARDWARE CONFIGURATION
Because the 1-Wire bus has only a single line, it is important that each device on the bus be able to drive it at the
appropriate time. To facilitate this, each device attached to the 1-Wire bus must connect to the bus with open-drain
or tri-state output drivers. The DS2762 used an open-drain output driver as part of the bidirectional interface
circuitry shown in Figure 16. If a bidirectional pin is not available on the bus master, separate output and input pins
can be connected together.
The 1-Wire bus must have a pullup resistor at the bus-master end of the bus. For short line lengths, the value of
this resistor should be approximately 5k W . The idle state for the 1-Wire bus is high. If, for any reason, a bus
transaction must be suspended, the bus must be left in the idle state to properly resume the transaction later. If the
bus is left low for more than 120 m s, slave devices on the bus begin to interpret the low period as a reset pulse,
effectively terminating the transaction.
Figure 16. 1-Wire Bus Interface Circuitry
BUS MASTER
Rx
V PULLUP
(2.0V to 5.5V)
4.7k W
DS2762 1-Wire PORT
Rx
Tx
Rx = RECEIVE
Tx = TRANSMIT
1 m A
(typ)
100 W
MOSFET
Tx
TRANSACTION SEQUENCE
The protocol for accessing the DS2762 through the 1-Wire port is as follows:
§
§
§
§
Initialization
Net Address Command
Function Command
Transaction/Data
The sections that follow describe each of these steps in detail.
All transactions of the 1-Wire bus begin with an initialization sequence consisting of a reset pulse transmitted by the
bus master, followed by a presence pulse simultaneously transmitted by the DS2762 and any other slaves on the
bus. The presence pulse tells the bus master that one or more devices are on the bus and ready to operate. For
more details, see the 1-Wire Signaling section.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2762AR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:High-Precision Li+ Battery Monitor With Alerts |
| DS2762AX/T&R | 功能描述:电池管理 High-Prec Li+ Bat Monitor w/Alerts RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| DS2762AX/TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:High-Precision Li+ Battery Monitor With Alerts |
| DS2762AX-025/T&R | 制造商:Maxim Integrated Products 功能描述:IC BATTERY MONITOR LI+ FLIPCHIP |
| DS2762AX-025/T&R | 功能描述:电池管理 High-Prec Li+ Bat Monitor w/Alerts RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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