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参数资料
| 型号： | MAX17040G+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/13页 |
| 文件大小： | 0K |
| 描述： | IC 2-WIRE FG W/MODEL GAUGE 8TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 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）、锂聚合物（Li-Pol） |
| 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： | 标准包装 |
| 其它名称： | MAX17040G+TDKR |
MAX17040/MAX17041
Compact, Low-Cost 1S/2S Fuel Gauges
Pin Description
UCSP
A1
A2
A3
B1
B2
B3
PIN
TDFN
8
7
1
6
—
2
NAME
SDA
SCL
CTG
EO
N.C.
CELL
FUNCTION
Serial Data Input/Output. Open-drain 2-wire data line. Connect this pin to the DATA signal of the
2-wire interface. This pin has a 0.2μA typical pulldown to sense disconnection.
Serial Clock Input. Input only 2-wire clock line. Connect this pin to the CLOCK signal of the
2-wire interface. This pin has a 0.2μA typical pulldown to sense disconnection.
Connect to Ground. Connect to GND during normal operation.
External 32kHz Clocking Signal. Input for external clocking signal to be the primary system
clock. Configured to implement interrupt feature with a pulldown set on SEO pin.
No Connect. Do not connect.
Battery-Voltage Input. The voltage of the cell pack is measured through this pin.
External 32kHz Clocking Signal Enable Input. Input to enable external clocking signal on EO pin
C1
5
SEO
with a pullup state; a pulldown state to configure the interrupt feature. External 32kHz clock
enable. Connects logic-low to enable external interrupt.
C2
C3
—
3
4
—
V DD
GND
EP
Power-Supply Input. 2.5V to 4.5V input range. Connect to system power through a decoupling
network. Connect a 10nF typical decoupling capacitor close to pin.
Ground. Connect to the negative power rail of the system.
Exposed Pad (TDFN Only). Connect to ground.
SDA
t F
t LOW
t R
t SU:DAT
t F
t HD:STA
t SP
t R
t BUF
SCL
t HD:STA
t SU:STA
t SU:STO
S
t HD:DAT
Sr
P
S
Figure 1. 2-Wire Bus Timing Diagram
Detailed Description
V DD
BIAS
TIME BASE
(32kHz)
EO
Figure 1 shows the 2-wire bus timing diagram, and
Figure 2 is the MAX17040/MAX17041 block diagram.
VOLTAGE
REFERENCE
ADC (VCELL)
MAX17040
MAX17041
STATE
MACHINE
(SOC, RATE)
SEO
CTG
ModelGauge Theory of Operation
The MAX17040/MAX17041 use a sophisticated battery
model, which determines the SOC of a nonlinear Li+
battery. The model effectively simulates the internal
CELL
GND
IC
GROUND
2-WIRE
INTERFACE
SDA
SCL
dynamics of a Li+ battery and determines the SOC. The
model considers the time effects of a battery caused by
the chemical reactions and impedance in the battery.
The MAX17040/MAX17041 SOC calculation does not
Figure 2. Block Diagram
Maxim Integrated
accumulate error with time. This is advantageous
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17040K | 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 |
| MAX17040X+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 |
| MAX17040X+U | 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 |
| MAX17041EVKIT+ | 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 |
| MAX17041G+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 |
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