- 您现在的位置：买卖IC网 > PDF目录16252 > ISL9216IRZ (Intersil)IC MULTI-CELL LI-ION PROT 32-QFN PDF资料下载
参数资料
| 型号： | ISL9216IRZ |
| 厂商： | Intersil |
| 文件页数： | 24/33页 |
| 文件大小： | 0K |
| 描述： | IC MULTI-CELL LI-ION PROT 32-QFN |
| 标准包装： | 60 |
| 功能： | 电池监控器 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 9.2 V ~ 31 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN 裸露焊盘（5x5） |
| 包装： | 管件 |
| 产品目录页面： | 1245 (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页第22页第23页当前第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
ISL9216, ISL9217
In the event of an automatic over-temperature condition, cell
balancing is prevented and FETs are held off until the
temperature drops back below the temperature recovery
threshold. During this temperature shutdown period, the
microcontroller can monitor the internal temperature through
the analog output pin (AO), but any writes to the CFET bit,
DFET bit, or cell balancing bits are ignored
The automatic response to an internal over-temperature is
prevented by setting the DISITSD bit to “1”. The automatic
response to an external over-temperature is prevented by
setting the DISXTSD bit to “1”. In either case, it is important
for the microcontroller to monitor the internal and external
temperature to protect the pack and the electronics in an
over-temperature condition.
Analog Multiplexer Selection
Cell Balancing
OVERVIEW
A typical ISL9216 and ISL9217 Li-ion battery pack consists
of 8 to 12 cells in series, with one or more cells in parallel.
This combination gives both the voltage and power
necessary for power tools, e-bikes, electric wheel chairs,
portable medical equipment, and battery powered industrial
applications. While the series/parallel combination of Li-ion
cells is common, the configuration is not as efficient as it
could be, because any capacity mismatch between series-
connected cells reduces the overall pack capacity. This
mismatch is greater as the number of series cells and the
load current increase. Cell balancing techniques increase
the capacity and the operating time of Li-ion battery packs.
The ISL9216 and ISL9217 devices can be used to externally
monitor individual battery cell voltages and temperatures.
Each quantity can be monitored at the analog output pin (AO)
and is selected using the I 2 C interface. See Figure 6.
ISL9217
I 2 C
LEVEL
SHIFT
LEVEL
SHIFT
VC7/VCC
VCELL6
REGS
To monitor the voltages on the ISL9217 inputs, set the
ISL9216 to monitor VCELL6, then set the ISL9217 to the
AO3:AO0
desired VCELL input. The ISL9216 and ISL9217 VCELL
input voltages are divided by 2, except for the ISL9216
DECODE
LEVEL
SHIFT
VCELL2
VCELL6 input. This is a divide by 1 input. In this way, the
AO
2
LEVEL
VCELL1
value read at the ISL9216 AO output is always a divide by 2
SHIFT
of the original cell voltage.
VOLTAGE MONITORING
Since the voltage on each of the Li-Ion Cells are normally
higher than the regulated supply voltage, it is necessary to
both level shift and divide the voltage. To get into the voltage
range required by the external A/D converter, the voltage
level shifter divides the cell voltage by 2. Therefore, a Li-Ion
1
MUX
INT
TEMP
VSS
cell with a voltage of 4.2V is reported via the AO pin to be
2.1V.
TEMPERATURE MONITORING
The voltage representing the external temperature applied at
the TEMPI terminal is directed to the AO terminal through a
SCL
SDA
LEVEL
SHIFT
I 2 C
ISL9216
LEVEL
SHIFT
LEVEL
SHIFT
VCC
VCELL6
VCELL5
MUX, as selected by the AO control bits (see Figures 5
REGS
and 6). The external temperature voltage is not divided by 2
as are the cell voltages. Instead it is a direct reflection of the
voltage at the TEMPI pin.
AO3:AO0
DECODE
LEVEL
SHIFT
VCELL4
A similar operation occurs when monitoring the internal
temperature through the AO output, except there is no
AO
2
LEVEL
SHIFT
VCELL1
external “calibration” of the voltage associated with the
internal temperature. For the internal temperature
VSS
monitoring, the voltage at the output is linear with respect to
MUX
EXT TEMP.
temperature. (See “Operating Specifications” on page 6 for
information about the output voltage at +25°C and the output
1
INT
TEMP
TEMPI
(ISL9216 ONLY)
slope relative to temperature).
FIGURE 6. ANALOG OUTPUT MONITORING DIAGRAM
24
FN6488.1
November 2, 2007
相关PDF资料 |
PDF描述 |
|---|---|
| M3UFK-1060K | IDC CABLE - MKS10K/MC10F/MCF10K |
| M3UGK-1060K | IDC CABLE - MKS10K/MC10F/MCS10K |
| 5-6754272-1 | CA,62.5,12F,OFNP,MPO |
| M3UEK-1060K | IDC CABLE - MKS10K/MC10F/MCE10K |
| M3BBK-1660K | IDC CABLE - MSR16K/MC16F/MSR16K |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL9216IRZ-T | 功能描述:IC MULTI-CELL LI-ION PROT 32-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| ISL9217 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:8 to 12 Cell Li-Ion Battery Overcurrent Protection and Analog Front End Chip Set |
| ISL9217IRZ | 功能描述:IC MULTI-CELL LI-ION PROT 24-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| ISL9217IRZ-T | 功能描述:IC MULTI-CELL LI-ION PROT 24-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| ISL9219AIRZ | 功能描述:IC CHRGR LI-ION SGL 20-QFN 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 |
发布紧急采购，3分钟左右您将得到回复。