參數(shù)資料
型號(hào)： MAX4374FESD
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO14
封裝： SO-14
文件頁(yè)數(shù)： 9/12頁(yè)
文件大?。?/td> 366K
代理商： MAX4374FESD
M
Low-Cost, Micropower, High-Side Current-Sense
Amplifier + Comparator + Reference ICs
_______________________________________________________________________________________
9
FUNCTION
Detailed Description
The MAX4373 high-side current-sense supervisor fea-
tures a high-side current-sense amplifier, bandgap ref-
erence, and comparator with latching output to monitor
a supply for an overcurrent condition (Figure 1). The
latching output allows the comparator to shut down a
power supply without oscillations. The MAX4374/
MAX4375 offer an additional comparator to allow win-
dow detection of the current.
Current-Sense Amplifier
The internal current-sense amplifier features a 0V to
+28V input common-mode range that is independent of
the supply voltage. With this feature, the device can
monitor the output current of a battery in deep dis-
charge and also high-side current-sensing voltages
exceeding V
CC
.
The current-sense amplifier is also suitable for low-side
current sensing. However, the total output voltage error
will increase when V
RS+
falls below 2V, as shown in
Pin Description
RS-
RS+
OUT
CIN2
GND
CIN1
LOAD
V
IN
= 0 TO 28V
V
CC
RESET
0.6V
BANDGAP
REFERENCE
R
SENSE
+ V
SENSE
-
V
PULL-UP
= 5V
R2
R1
R4
R5
V
PULL-UP
= 5V
R6
MAX4374/MAX4375
R3
COUT1
COUT2
CURRENT-
SENSE
AMPLIFIER
+
-
+(-)
Figure 1. Functional Diagram
FUNCTION
NAME
1
1
V
CC
2
2
OUT
PIN
3
3
CIN1
—
4
CIN2
—
7
COUT2
6
8
COUT1
5
6
RESET
4
5
GND
—
—
N.C.
8
10
RS+
7
9
RS-
Supply Voltage Input
1
2
4
5
10
11
8
7
3, 6, 9, 12
14
13
MAX4374/MAX4375
Voltage Output. V
OUT
is proportional to V
SENSE
(V
RS+
- V
RS-
).
MAX4373
Comparator Input 1. Positive input of an internal comparator. The nega-
tive terminal is connected to a 0.6V internal reference.
Comparator Input 2. Terminal of a second internal comparator. The pos-
itive terminal for the MAX4374 and the negative terminal for the
MAX4375. The other terminal is connected to a 0.6V internal reference.
Comparator Output. Output of the second unlatched internal
comparator.
Comparator Output. Latching output of the comparator controlled by
CIN1. Connect
RESET
to GND to disable the latch.
Reset Input. Resets the output latch of the comparator at CIN1.
μMAX
Ground
μMAX/SO
SO
No Connection. Not internally connected.
Power Connection to the External Sense Resistor
Load-Side Connection for the External Sense Resistor
相關(guān)PDF資料
PDF描述
MAX4374FEUB Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
MAX4374HESD Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
MAX4375FESD Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
MAX4375FEUB Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
MAX4375HESD Low-Cost, Micropower, High-Side Current-Sense Amplifier Comparator Reference ICs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4374FESD+ 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(bǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX4374FESD+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(bǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX4374FESD-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(bǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX4374FEUB 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(bǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
MAX4374FEUB+ 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(bǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
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