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参数资料
| 型号： | DS2746G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/17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
STATUS/CONFIG REGISTER
The Status/Config register is read/write with individual bits designated as read only. Bit values indicate status as
well as program or select device functionality.
Figure 12. Status/Config Register Format
ADDRESS 01
BIT 7
X
BIT 6
PORF
BIT 5
SMOD
BIT 4
NBEN
BIT 3
VODIS
BIT 2
X
BIT 1
AIN1
BIT 0
AIN0
X — Reserved.
PORF — The Power-On-Reset Flag is set to indicate initial power-up. PORF is not cleared internally. The user
must write this flag value to a 0 in order to use it to indicate subsequent power-up events. If PORF indicates a
power-on-reset, the ACR could be misaligned with the actual battery state of charge. The system can request a
charge to full in order to synchronize the ACR with the battery charge state. PORF is read/write-to-zero.
SMOD — SLEEP Mode Enable. A value of 1 allows the DS2746 to enter sleep mode when SCL AND SDA are low
for t SLEEP . A value of 0 disables the transition to sleep mode. The power-up default is SMOD = 1.
NBEN — Negative Blanking Enable. A value of 1 enables blanking of negative current values up to 25μV. A value
of 0 disables blanking of negative currents. The power-up default is NBEN = 1.
V ODIS – V OUT Disable. When set to 0 this output is driven t PRE before the AIN0 conversion begins, and disabled after
the AIN1 conversion ends. The power-up default is V ODIS = 0, a value of 1 disables the V OUT output.
AIN1 – AIN1 Conversion Valid. This read only bit indicates that the V OUT output was enabled, and a conversion has
occurred on the AIN1 pin. When using the V ODIS bit, before reading the AIN1 registers, read the AIN1 bit. Only once
the AIN1 bit is set, should the AIN1 register be read.
AIN0 – AIN0 Conversion Valid. This read only bit indicates that the V OUT output was enabled, and a conversion has
occurred on the AIN0 pin. When using the V ODIS bit, before reading the AIN0 registers, read the AIN0 bit. Only once
the AIN0 bit is set, should the AIN0 register be read.
2-WIRE BUS SYSTEM
The 2-Wire bus system supports operation as a slave-only device in a single or multislave, and single or
multimaster system. The 2-wire interface consists of a serial data line (SDA) and serial clock line (SCL). SDA and
SCL provide bidirectional communication between the DS2746 slave device and a master device at speeds up to
400 kHz. The DS2746’s SDA pin operates bidirectionally, that is, when the DS2746 receives data, SDA operates
as an input, and when the DS2746 returns data, SDA operates as an open drain output, with the host system
providing a resistive pullup. The DS2746 always operates as a slave device, receiving and transmitting data under
the control of a master device. The master initiates all transactions on the bus and generates the SCL signal as
well as the START and STOP bits which begin and end each transaction.
Bit Transfer
One data bit is transferred during each SCL clock cycle, with the cycle defined by SCL transitioning low-to-high and
then high-to-low. The SDA logic level must remain stable during the high period of the SCL clock pulse. Any
change in SDA when SCL is high is interpreted as a START or STOP control signal.
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相关代理商/技术参数 |
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|---|---|
| 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 |
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