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参数资料
| 型号： | MAX17049X+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/19页 |
| 文件大小： | 0K |
| 描述： | IC FUEL/GAS GAUGE LI-ION 8WLP |
| 标准包装： | 1 |
| 系列： | ModelGauge™ |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 2.5 V ~ 4.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFBGA，WLCSP |
| 供应商设备封装： | 8-WLP;CSP（1.66x0.92） |
| 包装： | 管件 |
MAX17048/MAX17049
Micropower 1-Cell/2-Cell Li+ ModelGauge ICs
STATUS Register (0x1A)
An alert can indicate many different conditions. The
STATUS register identifies which alert condition was
met. Clear the corresponding bit after servicing the alert
(see Figure 13).
Reset Indicator:
? RI (reset indicator) is set when the device powers
up. Any time this bit is set, the IC is not configured,
so the model should be loaded and the bit should
be cleared.
Alert Descriptors:
These bits are set only when they cause an alert (e.g., if
CONFIG.ALSC = 0, then SC is never set).
? VH (voltage high) is set when VCELL has been above
ALRT.VALRTMAX.
? VL (voltage low) is set when VCELL has been below
ALRT.VALRTMIN.
? VR (voltage reset) is set after the device has been
reset regardless of EnVr.
? HD (SOC low) is set when SOC crosses the value in
CONFIG.ATHD.
? SC (1% SOC change) is set when SOC changes by at
least 1% if CONFIG.ALSC is set.
Enable or Disable VRESET Alert:
? EnVr (enable voltage reset alert) when set to 1 asserts
the ALRT pin when a voltage-reset event occurs under
the conditions described by the VRESET/ ID register.
TABLE Registers (0x40 to 0x7F)
Contact Maxim for details on how to configure these
registers. The default value is appropriate for some Li+
batteries.
MSB—ADDRESS 0x1A
To unlock the TABLE registers, write 0x57 to address
0x3F, and 0x4A to address 0x3E. While TABLE is
unlocked, no ModelGauge registers are updated, so
relock as soon as possible by writing 0x00 to address
0x3F, and 0x00 to address 0x3E.
CMD Register (0xFE)
Writing a value of 0x5400 to this register causes the
device to completely reset as if power had been
removed (see the Power-On Reset (POR) section). The
reset occurs when the last bit has been clocked in.
The IC does not respond with an I 2 C ACK after this
command sequence.
Application Examples
The ICs have a variety of configurations, depending on
the application. Table 3 shows the most common system
configurations and the proper pin connections for each.
In all cases, the system must provide pullup circuits for
ALRT (if used), SDA, and SDL.
Figure 14 shows an example application for a 1S cell
pack. In this example, the ALRT pin is connected to the
microcontroller’s interrupt input to allow the MAX17048 to
signal when the battery is low. The QSTRT pin is unused
in this application and is connected to GND.
Figure 15 shows a MAX17049 example application
using a 2S cell pack. The MAX17049 is mounted on the
system side and powered from a 3.3V supply generated
by the system. The CELL pin is still connected directly
to PACK+.
LSB—ADDRESS 0x1B
X
EnVR
SC
HD
VR
VL
VH
RI
X
X
X
X
X
X
X
X
MSb
LSb
MSb
LSb
Figure 13. STATUS Register Format
Maxim Integrated
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17049X+ | 功能描述:电池管理 Host-Side Modelgauge (2-Cell) WLCSP 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 |
| MAX17049X+T10 | 功能描述:电池管理 Host-Side Modelgauge (2-Cell) WLCSP 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 |
| MAX17050EVKIT# | 功能描述:电源管理IC开发工具 MAX17050 Eval Kit 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 |
| MAX17050X+ | 制造商:Maxim Integrated Products 功能描述:MODELGAUGE M3 FG WLCSP - Tape and Reel |
| MAX17050X+T10 | 制造商:Maxim Integrated Products 功能描述:MODELGAUGE M3 FG WLCSP - Tape and Reel |
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