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| 型号： | MAX4372TESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/11页 |
| 文件大小： | 0K |
| 描述： | IC AMP CURRENT SENSE 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 放大器类型： | 电流检测 |
| 电路数： | 1 |
| -3db带宽： | 275kHz |
| 电流 - 输入偏压： | 2µA |
| 电压 - 输入偏移： | 300µV |
| 电流 - 电源： | 30µA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
Using a PC Board Trace as RSENSE
If the cost of RSENSE is an issue and accuracy is not
critical, use the alternative solution shown in Figure 2.
This solution uses copper PC board traces to create a
sense resistor. The resistivity of a 0.1-inch-wide trace of
2-ounce copper is about 30mΩ/ft. The resistance tem-
perature coefficient of copper is fairly high (approxi-
mately 0.4%/°C), so systems that experience a wide
temperature variance must compensate for this effect.
In addition, self-heating will introduce a nonlinearity
error. Do not exceed the maximum power dissipation of
the copper trace.
For example, the MAX4372T (with a maximum load cur-
rent of 10A and an RSENSE of 5mΩ) creates a full-scale
VSENSE of 50mV that yields a maximum VOUT of 1V.
RSENSE, in this case, requires about 2 inches of 0.1-
inch-wide copper trace.
UCSP Applications Information
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit
board techniques, bump-pad layout, and recommend-
ed reflow temperature profile, as well as the latest infor-
mation on reliability testing results, go to the Maxim's
website at www.maxim-ic.com/ucsp to find the
Application Note:
UCSP—A Wafer-Level Chip-Scale
Package.
Table 1. Recommended Component Values
FULL-SCALE LOAD
CURRENT,
ILOAD (A)
GAIN
(V/V)
CURRENT-SENSE
RESISTOR,
RSENSE (mΩ)
2.0
FULL-SCALE OUTPUT
VOLTAGE (FULL-SCALE
VSENSE = 100mV),
VOUT (V)
5.0
10.0
0.1
1000
20
100
50
2.0
100
50
5.0
10.0
1
100
20
2.0
100
50
5.0
2.0
100
50
5.0
10.0
5
20
10.0
10
20
0.1in COPPER
0.3in COPPER
INPUT
LOAD/BATTERY
VCC
VSENSE
RSENSE
GND
2.7V TO 28V
RS+
RS-
OUT
MAX4372T/F/H
Figure 2. Connections Showing Use of PC Board
Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
Maxim Integrated
7
MAX4372T/F/H
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4372TEUK | 制造商:Maxim Integrated Products 功能描述:UCSP/SOT23, MICROPOWER, HIGH-SIDE CURRENT-SENSE AMP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX4372TEUK+ | 制造商:Maxim Integrated Products 功能描述:LOW-COST, UCSP/SOT23, MICROPOWER AMP 制造商:Maxim Integrated Products 功能描述:SP AMP CURRENT SENSE AMP SGL 28V 5PIN SOT-23 - Bulk |
| MAX4372TEUK+T | 功能描述:电流灵敏放大器 uPower High-Side Current-Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX4372TEUKT | 制造商:Maxim Integrated Products 功能描述: |
| MAX4372TEUK-T | 功能描述:电流灵敏放大器 uPower High-Side Current-Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
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