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| 型号： | MAX4374EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/13页 |
| 文件大小： | 0K |
| 描述： | EVALUATION KIT FOR MAX4374 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 每 IC 通道数： | 1 - 单 |
| 放大器类型： | 电流检测 |
| 输出类型： | 单端 |
| -3db带宽： | 120kHz |
| 工作温度： | -40°C ~ 85°C |
| 电流供应（主 IC）： | 50µA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 28 V |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX4374 |
MAX4373/MAX4374/MAX4375
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 VCC.
The current-sense amplifier is also suitable for low-side
current sensing. However, the total output voltage error
will increase when VRS+ falls below 2V, as shown in
the
Electrical Characteristics and Typical Operating
Characteristics.
Pin Description
RS-
RS+
OUT
CIN2
GND
CIN1
LOAD
VIN = 0 TO 28V
VCC
RESET
0.6V
BANDGAP
REFERENCE
RSENSE
+ VSENSE -
VPULL-UP
(UP TO 5V)
R2
R1
R4
R5
VPULL-UP
(UP TO 5V)
R6
MAX4374
(MAX4375)
R3
COUT1
COUT2
CURRENT-
SENSE
AMPLIFIER
+
-
+(-)
-(+)
Figure 1. Functional Diagram
FUNCTION
NAME
1
VCC
2
OUT
PIN
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. VOUT is proportional to VSENSE (VRS+ - VRS-).
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.
Open-Drain Comparator Output. Output of the second unlatched inter-
nal comparator.
Open-Drain Comparator Output. Latching output of the comparator con-
trolled by CIN1. Connect RESET to GND to disable the latch.
Reset Input. Resets the output latch of the comparator at CIN1.
MAX
Ground
MAX/SO
SO
No Connection. Not internally connected.
Power Connection to the External Sense Resistor
Load-Side Connection for the External Sense Resistor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4374EVKIT+ | 功能描述:放大器 IC 开发工具 uPower High-Side Current-Sense Amp RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX4374FESD | 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 |
| MAX4374FESD+ | 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 |
| MAX4374FESD+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 |
| MAX4374FESD-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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