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參數(shù)資料
| 型號： | MAX4372FEUK-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Low-Cost, SOT23, Micropower, High-Side Current-Sense Amplifier with Voltage Output |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | MO-178AA, SOT-23, 5 PIN |
| 文件頁數(shù)： | 7/8頁 |
| 文件大小： | 111K |
| 代理商： | MAX4372FEUK-T |
M
Low-Cost, SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
_______________________________________________________________________________________
7
Using a PC Board Trace as R
SENSE
If the cost of R
SENSE
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 30m
/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 R
SENSE
of 5m
) creates a full-scale
V
SENSE
of 50mV that yields a maximum V
OUT
of 1V.
R
SENSE
, in this case, requires about 2 inches of 0.1-
inch-wide copper trace.
Table 1. Recommended Component Values
FULL-SCALE LOAD
CURRENT,
I
LOAD
(A)
GAIN
(V/V)
CURRENT-SENSE
RESISTOR,
R
SENSE
(m
)
2.0
5.0
10.0
2.0
5.0
10.0
2.0
5.0
10.0
FULL-SCALE OUTPUT
VOLTAGE (FULL-SCALE
V
SENSE
= 100mV),
V
OUT
(V)
0.1
1000
20
50
100
20
100
20
50
1
100
100
20
50
2.0
5.0
10.0
100
50
5
20
10
10
0.1in COPPER
0.3in COPPER
0.3in COPPER
INPUT
LOAD/BATTERY
V
CC
V
SENSE
R
SENSE
GND
+2.7V TO +28V
RS+
RS-
OUT
MAX4372T/F/H
Figure 2. Connections Showing Use of PC Board
Chip Information
TRANSISTOR COUNT: 225
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PDF描述 |
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| MAX4372 | Low-Cost, SOT23, Micropower, High-Side Current-Sense Amplifier with Voltage Output |
| MAX4372HEUK-T | Low-Cost, SOT23, Micropower, High-Side Current-Sense Amplifier with Voltage Output |
| MAX4372FESA | Low-Cost, SOT23, Micropower, High-Side Current-Sense Amplifier with Voltage Output |
| MAX4372T | Low-Cost, SOT23, Micropower, High-Side Current-Sense Amplifier with Voltage Output |
| MAX4372TESA | Low-Cost, SOT23, Micropower, High-Side Current-Sense Amplifier with Voltage Output |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4372HEBT | 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: |
| MAX4372HEBT+ | 制造商:Maxim Integrated Products 功能描述:SP AMP CURRENT SENSE AMP SGL 28V 6UCSP - Rail/Tube |
| MAX4372HEBT+T | 功能描述:電流靈敏放大器 uPower High-Side Current-Sense Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| MAX4372HEBT+TG45 | 功能描述:電流靈敏放大器 uPower High-Side Current-Sense Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| MAX4372HEBT-T | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
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