参数资料
型号: MAX4173TEUT-T
厂商: Maxim Integrated Products
文件页数: 9/10页
文件大小: 0K
描述: IC AMP HISIDE CURR V-OUT SOT23-6
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: 1.7MHz
电流 - 输入偏压: 700µA
电压 - 输入偏移: 300µV
电流 - 电源: 420µA
电压 - 电源,单路/双路(±): 3 V ~ 28 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)
Low-Cost, SOT23, Voltage-Output,
High-Side Current-Sense Amplifier
amp’s supply voltage range should be at least as high
as any voltage the system may encounter.
The percent error introduced by output loading is
determined with the following formula:
where RLOAD is the external load applied to OUT.
Current Source Circuit
Figure 3 shows a block diagram using the MAX4173
with a switching regulator to make a current source.
%
100
R
12k
R
1
ERROR
LOAD
=
+
Table 1. Recommended Component Values
MAX4173T
VSENSE
RSENSE
+3V TO +28V
0.1
F
RS+
+
0.3 in. COPPER
INPUT
LOAD/BATTERY
0.3 in. COPPER
0.1 in. COPPER
RS-
GND
OUT
VCC
_
Figure 2. MAX4173 Connections Showing Use of PC Board
Figure 3. Current Source
MAX4173
RSENSE
ILOAD
0 TO +28V
VSENSE
VCC
OUT
VIN
GND
RS+
+3V TO +28V
0.1
F
RS-
LOAD/
BATTERY
LOW-COST
SWITCHING
REGULATOR
10.0
100
5.0
50
2.0
10
20
10.0
100
5.0
50
2.0
5
20
10.0
100
5.0
50
2.0
1
100
20
10.0
100
5.0
50
1000
CURRENT-SENSE RESISTOR
RSENSE (m
)
20
GAIN
2.0
0.1
FULL-SCALE OUTPUT VOLTAGE
(FULL-SCALE VSENSE = 100mV)
VOUT (V)
FULL-SCALE LOAD CURRENT
ILOAD (A)
8
Maxim Integrated
MAX4173
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