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参数资料
| 型号： | MAX17043G+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/14页 |
| 文件大小： | 0K |
| 描述： | IC 2-WIRE FG MODEL GAUGE LO BATT |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 10,000 |
| 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： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（2x3） |
| 包装： | 带卷 (TR) |
| 其它名称： | 90-2771G+BTR |
MAX17043/MAX17044
Compact, Low-Cost 1S/2S Fuel Gauges
with Low-Battery Alert
VCELL Register
Table 2. MODE Register Commands
Battery voltage is measured at the CELL pin input with
respect to GND over a 0 to 5.00V range for the
MAX17043 and 0 to 10.00V for the MAX17044 with reso-
lutions of 1.25mV and 2.50mV, respectively. The A/D
VALUE
4000h
COMMAND
Quick-Start
DESCRIPTION
See the Quick-Start
description section.
calculates the average cell voltage for a period of
125ms after IC POR and then for a period of 500ms for
every cycle afterwards. The VCELL register requires
500ms to update after exiting Sleep mode. The result is
placed in the VCELL register at the end of each conver-
sion period. Figure 3 shows the VCELL register format.
SOC Register
The SOC register is a read-only register that displays
the state of charge of the cell as calculated by the
ModelGauge algorithm. The result is displayed as a
percentage of the cell ’s full capacity. This register
automatically adapts to variation in battery size since
the MAX17043/MAX17044 naturally recognize relative
SOC. Units of % can be directly determined by observ-
ing only the high byte of the SOC register. The low byte
provides additional resolution in units 1/256%. The
reported SOC also includes residual capacity, which
might not be available to the actual application because
of early termination voltage requirements. When SOC()
= 0, typical applications have no remaining capacity.
The first update occurs within 250ms after POR of the
IC. Subsequent updates occur at variable intervals
depending on application conditions. ModelGauge cal-
culations outside the register are clamped at minimum
and maximum register limits. Figure 4 shows the SOC
register format.
MSB—ADDRESS 02h
MODE Register
The MODE register allows the host processor to send
special commands to the IC (Table 2). Valid MODE reg-
ister write values are listed as follows. All other MODE
register values are reserved.
VERSION Register
The VERSION register is a read-only register that con-
tains a value indicating the production version of the
MAX17043/MAX17044.
CONFIG Register
The CONFIG register compensates the ModelGauge
algorithm, controls the alert interrupt feature, and forces
the IC into Sleep mode through software. The format of
CONFIG is shown in Figure 5.
CONFIG
CONFIG is an 8-bit value that can be adjusted to opti-
mize IC performance for different lithium chemistries or
different operating temperatures. Contact Maxim for
instructions for optimization. The power-up default
value for CONFIG is 97h.
LSB—ADDRESS 03h
2 11
2 10
2 9
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
0
0
0
0
MSB
0: BITS ALWAYS READ LOGIC 0
LSB
MSB
UNITS: 1.25mV FOR MAX17043
LSB
2.50mV FOR MAX17044
Figure 3. VCELL Register Format
MSB—ADDRESS 04h
LSB—ADDRESS 05h
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
2 -1
2 -2
2 -3
2 -4
2 -5
2 -6
2 -7
2 -8
MSB
LSB
MSB
LSB
UNITS: 1.0%
Figure 4. SOC Register Format
8
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17043X+ | 功能描述:电池管理 1S/2S Fuel Gauge 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 |
| MAX17043X+T10 | 功能描述:电池管理 1S/2S Fuel Gauge 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 |
| MAX17043X+U | 功能描述:电池管理 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 |
| MAX17044G+T | 功能描述:电池管理 1S/2S Fuel Gauge 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 |
| MAX17044G+U | 制造商:Maxim Integrated Products 功能描述:2-WIRE FG W/MD GAUGE W/LOW BATT ALE - Rail/Tube |
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