- 您现在的位置：买卖IC网 > PDF目录16240 > DS2780E+ (Maxim Integrated Products)IC FUEL GAUGE BATT 8TSSOP PDF资料下载
参数资料
| 型号： | DS2780E+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 22/31页 |
| 文件大小： | 0K |
| 描述： | IC FUEL GAUGE BATT 8TSSOP |
| 产品培训模块： | 1-Wire Communications Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 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： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 管件 |
| 产品目录页面： | 1436 (CN2011-ZH PDF) |
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页当前第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
DS2780 Standalone Fuel Gauge IC
Table 3. PARAMETER EEPROM MEMORY BLOCK 1
ADDRESS
(HEX)
60
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
6E
6F
DESCRIPTION
CONTROL - Control Register
AB - Accumulation Bias
AC - Aging Capacity MSB
AC - Aging Capacity LSB
VCHG - Charge Voltage
IMIN - Minimum Charge Current
VAE - Active Empty Voltage
IAE - Active Empty Current
Active Empty 40
RSNSP - Sense Resistor Prime
Full 40 MSB
Full 40 LSB
Full 3040 Slope
Full 2030 Slope
Full 1020 Slope
Full 0010 Slope
ADDRESS
(HEX)
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
7D
7E
7F
DESCRIPTION
AE 3040 Slope
AE 2030 Slope
AE 1020 Slope
AE 0010 Slope
SE 3040 Slope
SE 2030 Slope
SE 1020 Slope
SE 0010 Slope
RSGAIN - Sense Resistor Gain MSB
RSGAIN - Sense Resistor Gain LSB
RSTC - Sense Resistor Temp. Coeff.
FRSGAIN - Factory Gain MSB
FRSGAIN - Factory Gain LSB
Reserved
Reserved
Reserved
1-WIRE BUS SYSTEM
The 1-Wire bus is a system that has a single bus master and one or more slaves. A multidrop bus is a 1-Wire bus
with multiple slaves. A single-drop bus has only one slave device. In all instances, the DS2780 is a slave device.
The bus master is typically a microprocessor in the host system. The discussion of this bus system consists of four
topics: 64-bit net address, hardware configuration, transaction sequence, and 1-Wire signaling.
64-BIT NET ADDRESS
Each DS2780 has a unique, factory-programmed 1-Wire net address that is 64 bits in length. The first eight bits are
the 1-Wire family code ( 32h for DS2780). The next 48 bits are a unique serial number. The last eight bits are a
cyclic redundancy check (CRC) of the first 56 bits (see Figure 18). The 64-bit net address and the 1-Wire I/O
circuitry built into the device enable the DS2780 to communicate through the 1-Wire protocol detailed in the 1-Wire
Bus System section of this data sheet.
Figure 18. 1-Wire Net Address Format
8-BIT CRC
MSb
48-BIT SERIAL NUMBER
8-BIT FAMILY
CODE ( 32h )
LSb
CRC GENERATION
The DS2780 has an 8-bit CRC stored in the most significant byte of its 1-Wire net address. To ensure error-free
transmission of the address, the host system can compute a CRC value from the first 56 bits of the address and
compare it to the CRC from the DS2780. The host system is responsible for verifying the CRC value and taking
action as a result. The DS2780 does not compare CRC values and does not prevent a command sequence from
proceeding as a result of a CRC mismatch. Proper use of the CRC can result in a communication channel with a
very high level of integrity.
The CRC can be generated by the host using a circuit consisting of a shift register and XOR gates as shown in
Figure 19, or it can be generated in software. Additional information about the Dallas 1-Wire CRC is available in
22 of 31
相关PDF资料 |
PDF描述 |
|---|---|
| M1KXK-3036R | IDC CABLE - MPK30K/MC34M/X |
| RBM08DSEF-S13 | CONN EDGECARD 16POS .156 EXTEND |
| RCM22DCBS | CONN EDGECARD 44POS R/A .156 SLD |
| RCA18DTMS | CONN EDGECARD 36POS R/A .125 SLD |
| RSA10DTKS | CONN EDGECARD 20POS DIP .125 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2780E/R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel Gauge IC |
| DS2780E/T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel Gauge IC |
| DS2780E/T&R | 制造商:Maxim Integrated Products 功能描述:STANDALONG FUELD CAUGE TSSOP T&R - Tape and Reel |
| DS2780E/T&R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Stand-Alone Fuel Gauge IC |
| DS2780E/TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Standalone Fuel Gauge IC |
发布紧急采购，3分钟左右您将得到回复。